+thread apply all bt full

Thread 24 (Thread 0x7fd16d3ff700 (LWP 23872)):
+bt full
#0  0x00007fd177cf77ea in sigwaitinfo () from /lib64/libc.so.6
No symbol table info available.
#1  0x00000000013af24f in timer_notify_thread_func (arg=0x7fff2c6073e0) at /bzr/mysql-5.7.6-m16_dbg/mysys/posix_timers.c:77
        set = {
          __val =             {[0] = 25769803776,
            [1] = 0 <repeats 15 times>}
        }
        info = {
          si_signo = 1832906336, 
          si_errno = 32721, 
          si_code = 21241529, 
          _sifields = {
            _pad =               {[0] = 1832906112,
              [1] = 32721,
              [2] = 20593039,
              [3] = 0,
              [4] = 1832906144,
              [5] = 32721,
              [6] = 20593039,
              [7] = 0,
              [8] = 1832906144,
              [9] = 32721,
              [10] = 192,
              [11] = 0,
              [12] = 2000683200,
              [13] = 32721,
              [14] = 20595508,
              [15] = 0,
              [16] = 1832906192,
              [17] = 32721,
              [18] = 1891631104,
              [19] = 32721,
              [20] = 2000685008,
              [21] = 32721,
              [22] = 2000683200,
              [23] = 32721,
              [24] = 1895502016,
              [25] = 32721,
              [26] = 1891653688,
              [27] = 32721}, 
            _kill = {
              si_pid = 1832906112, 
              si_uid = 32721
            }, 
            _timer = {
              si_tid = 1832906112, 
              si_overrun = 32721, 
              si_sigval = {
                sival_int = 20593039, 
                sival_ptr = 0x13a398f <my_get_thread_local+21>
              }
            }, 
            _rt = {
              si_pid = 1832906112, 
              si_uid = 32721, 
              si_sigval = {
                sival_int = 20593039, 
                sival_ptr = 0x13a398f <my_get_thread_local+21>
              }
            }, 
            _sigchld = {
              si_pid = 1832906112, 
              si_uid = 32721, 
              si_status = 20593039, 
              si_utime = 140537457798560, 
              si_stime = 20593039
            }, 
            _sigfault = {
              si_addr = 0x7fd16d3fed80
            }, 
            _sigpoll = {
              si_band = 140537457798528, 
              si_fd = 20593039
            }, 
            _sigsys = {
              _call_addr = 0x7fd16d3fed80, 
              _syscall = 20593039, 
              _arch = 0
            }
          }
        }
        timer = 0x7fd16d3fee80
        barrier = 0x7fff2c6073e0
#2  0x00000000013d2299 in pfs_spawn_thread (arg=0x7fd170fb10d0) at /bzr/mysql-5.7.6-m16_dbg/storage/perfschema/pfs.cc:2147
        typed_arg = 0x7fd170fb10d0
        user_arg = 0x7fff2c6073e0
        pfs = 0x7fd172c07c00
        user_start_routine = 0x13af1ad <timer_notify_thread_func>
        klass = 0x7fd1770680c0
#3  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 23 (Thread 0x7fd1603ff700 (LWP 23922)):
+bt full
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
No symbol table info available.
#1  0x0000000001581cad in os_aio_linux_collect (array=0x7fd16efc7f10, segment=0, seg_size=256) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4700
        i = 0
        ret = 0
        start_pos = 0
        timeout = {
          tv_sec = 0, 
          tv_nsec = 500000000
        }
        io_ctx = 0x7fd17974e000
        end_pos = 256
        events = 0x7fd172bb4010
#2  0x000000000158213b in os_aio_linux_handle (global_seg=0, message1=0x7fd1603fee60, message2=0x7fd1603fee58, type=0x7fd1603fee50) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4843
        any_reserved = false
        segment = 0
        array = 0x7fd16efc7f10
        slot = 0x7fd172bb3768
        i = 256
        ret = false
        n = 256
#3  0x00000000017a948f in fil_aio_wait (segment=0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
        ret = false
        fil_node = 0x7fd177068b40
        message = 0x7fd172c08a00
        type = 0
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b0780 <n>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
        segment = 0
        start = 2
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 22 (Thread 0x7fd15fbfe700 (LWP 23923)):
+bt full
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
No symbol table info available.
#1  0x0000000001581cad in os_aio_linux_collect (array=0x7fd16efc7c10, segment=0, seg_size=256) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4700
        i = 0
        ret = 0
        start_pos = 0
        timeout = {
          tv_sec = 0, 
          tv_nsec = 500000000
        }
        io_ctx = 0x7fd179751000
        end_pos = 256
        events = 0x7fd16e3f7010
#2  0x000000000158213b in os_aio_linux_handle (global_seg=1, message1=0x7fd15fbfde60, message2=0x7fd15fbfde58, type=0x7fd15fbfde50) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4843
        any_reserved = false
        segment = 0
        array = 0x7fd16efc7c10
        slot = 0x7fd172ba8768
        i = 256
        ret = false
        n = 256
#3  0x00000000017a948f in fil_aio_wait (segment=1) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
        ret = true
        fil_node = 0x7fd16fffd5d0
        message = 0x7fd1747fe391
        type = 11
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b0788 <n+8>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
        segment = 1
        start = 2
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 21 (Thread 0x7fd15f3fd700 (LWP 23924)):
+bt full
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
No symbol table info available.
#1  0x0000000001581cad in os_aio_linux_collect (array=0x7fd16e3fa310, segment=0, seg_size=256) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4700
        i = 0
        ret = 0
        start_pos = 0
        timeout = {
          tv_sec = 0, 
          tv_nsec = 500000000
        }
        io_ctx = 0x7fd179743000
        end_pos = 256
        events = 0x7fd172be2010
#2  0x000000000158213b in os_aio_linux_handle (global_seg=2, message1=0x7fd15f3fce60, message2=0x7fd15f3fce58, type=0x7fd15f3fce50) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4843
        any_reserved = false
        segment = 0
        array = 0x7fd16e3fa310
        slot = 0x7fd172bc1768
        i = 256
        ret = false
        n = 256
#3  0x00000000017a948f in fil_aio_wait (segment=2) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
        ret = false
        fil_node = 0x7fd177068cc0
        message = 0x7fd172c0a600
        type = 0
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b0790 <n+16>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
        segment = 2
        start = 2
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 20 (Thread 0x7fd15dbff700 (LWP 23925)):
+bt full
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
No symbol table info available.
#1  0x0000000001581cad in os_aio_linux_collect (array=0x7fd16e3fa310, segment=1, seg_size=256) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4700
        i = 0
        ret = 0
        start_pos = 256
        timeout = {
          tv_sec = 0, 
          tv_nsec = 500000000
        }
        io_ctx = 0x7fd179740000
        end_pos = 512
        events = 0x7fd172be4010
#2  0x000000000158213b in os_aio_linux_handle (global_seg=3, message1=0x7fd15dbfee60, message2=0x7fd15dbfee58, type=0x7fd15dbfee50) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4843
        any_reserved = false
        segment = 1
        array = 0x7fd16e3fa310
        slot = 0x7fd172bcbf68
        i = 256
        ret = false
        n = 256
#3  0x00000000017a948f in fil_aio_wait (segment=3) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
        ret = false
        fil_node = 0x7fd177068cc0
        message = 0x7fd172c0b400
        type = 0
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b0798 <n+24>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
        segment = 3
        start = 2
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 19 (Thread 0x7fd15d3fe700 (LWP 23926)):
+bt full
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
No symbol table info available.
#1  0x0000000001581cad in os_aio_linux_collect (array=0x7fd16e3fa310, segment=2, seg_size=256) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4700
        i = 0
        ret = 0
        start_pos = 512
        timeout = {
          tv_sec = 0, 
          tv_nsec = 500000000
        }
        io_ctx = 0x7fd17973d000
        end_pos = 768
        events = 0x7fd172be6010
#2  0x000000000158213b in os_aio_linux_handle (global_seg=4, message1=0x7fd15d3fde60, message2=0x7fd15d3fde58, type=0x7fd15d3fde50) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4843
        any_reserved = false
        segment = 2
        array = 0x7fd16e3fa310
        slot = 0x7fd172bd6768
        i = 256
        ret = false
        n = 256
#3  0x00000000017a948f in fil_aio_wait (segment=4) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
        ret = false
        fil_node = 0x7fd177068cc0
        message = 0x7fd172c0c200
        type = 0
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b07a0 <n+32>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
        segment = 4
        start = 2
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 18 (Thread 0x7fd15cbfd700 (LWP 23927)):
+bt full
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
No symbol table info available.
#1  0x0000000001581cad in os_aio_linux_collect (array=0x7fd16e3fa310, segment=3, seg_size=256) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4700
        i = 0
        ret = 0
        start_pos = 768
        timeout = {
          tv_sec = 0, 
          tv_nsec = 500000000
        }
        io_ctx = 0x7fd17973a000
        end_pos = 1024
        events = 0x7fd172be8010
#2  0x000000000158213b in os_aio_linux_handle (global_seg=5, message1=0x7fd15cbfce60, message2=0x7fd15cbfce58, type=0x7fd15cbfce50) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4843
        any_reserved = false
        segment = 3
        array = 0x7fd16e3fa310
        slot = 0x7fd172be0f68
        i = 256
        ret = false
        n = 256
#3  0x00000000017a948f in fil_aio_wait (segment=5) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
        ret = false
        fil_node = 0x7fd177068cc0
        message = 0x7fd172c0d000
        type = 0
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b07a8 <n+40>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
        segment = 5
        start = 2
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 17 (Thread 0x7fd15c3fc700 (LWP 23928)):
+bt full
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
No symbol table info available.
#1  0x0000000001581cad in os_aio_linux_collect (array=0x7fd16e3fa610, segment=0, seg_size=256) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4700
        i = 0
        ret = 0
        start_pos = 0
        timeout = {
          tv_sec = 0, 
          tv_nsec = 500000000
        }
        io_ctx = 0x7fd179737000
        end_pos = 256
        events = 0x7fd172beb010
#2  0x000000000158213b in os_aio_linux_handle (global_seg=6, message1=0x7fd15c3fbe60, message2=0x7fd15c3fbe58, type=0x7fd15c3fbe50) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4843
        any_reserved = false
        segment = 0
        array = 0x7fd16e3fa610
        slot = 0x7fd16d790768
        i = 256
        ret = false
        n = 256
#3  0x00000000017a948f in fil_aio_wait (segment=6) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
        ret = true
        fil_node = 0x7fd16fffd530
        message = 0x7fd162dc1000
        type = 11
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b07b0 <n+48>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
        segment = 6
        start = 2
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 16 (Thread 0x7fd15b3ff700 (LWP 23929)):
+bt full
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
No symbol table info available.
#1  0x0000000001581cad in os_aio_linux_collect (array=0x7fd16e3fa610, segment=1, seg_size=256) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4700
        i = 0
        ret = 0
        start_pos = 256
        timeout = {
          tv_sec = 0, 
          tv_nsec = 500000000
        }
        io_ctx = 0x7fd179734000
        end_pos = 512
        events = 0x7fd172bed010
#2  0x000000000158213b in os_aio_linux_handle (global_seg=7, message1=0x7fd15b3fee60, message2=0x7fd15b3fee58, type=0x7fd15b3fee50) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4843
        any_reserved = false
        segment = 1
        array = 0x7fd16e3fa610
        slot = 0x7fd16d79af68
        i = 256
        ret = false
        n = 256
#3  0x00000000017a948f in fil_aio_wait (segment=7) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
        ret = true
        fil_node = 0x7fd1627c1570
        message = 0x7fd162de3f00
        type = 11
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b07b8 <n+56>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
        segment = 7
        start = 2
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 15 (Thread 0x7fd15a3ff700 (LWP 23930)):
+bt full
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
No symbol table info available.
#1  0x0000000001581cad in os_aio_linux_collect (array=0x7fd16e3fa610, segment=2, seg_size=256) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4700
        i = 0
        ret = 0
        start_pos = 512
        timeout = {
          tv_sec = 0, 
          tv_nsec = 500000000
        }
        io_ctx = 0x7fd179731000
        end_pos = 768
        events = 0x7fd172bef010
#2  0x000000000158213b in os_aio_linux_handle (global_seg=8, message1=0x7fd15a3fee60, message2=0x7fd15a3fee58, type=0x7fd15a3fee50) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4843
        any_reserved = false
        segment = 2
        array = 0x7fd16e3fa610
        slot = 0x7fd16d7a5768
        i = 256
        ret = false
        n = 256
#3  0x00000000017a948f in fil_aio_wait (segment=8) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
        ret = true
        fil_node = 0x7fd1627c1570
        message = 0x7fd162dee800
        type = 11
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b07c0 <n+64>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
        segment = 8
        start = 2
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 14 (Thread 0x7fd1593ff700 (LWP 23931)):
+bt full
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
No symbol table info available.
#1  0x0000000001581cad in os_aio_linux_collect (array=0x7fd16e3fa610, segment=3, seg_size=256) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4700
        i = 0
        ret = 0
        start_pos = 768
        timeout = {
          tv_sec = 0, 
          tv_nsec = 500000000
        }
        io_ctx = 0x7fd17972e000
        end_pos = 1024
        events = 0x7fd172bf1010
#2  0x000000000158213b in os_aio_linux_handle (global_seg=9, message1=0x7fd1593fee60, message2=0x7fd1593fee58, type=0x7fd1593fee50) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0file.cc:4843
        any_reserved = false
        segment = 3
        array = 0x7fd16e3fa610
        slot = 0x7fd16d7aff68
        i = 256
        ret = false
        n = 256
#3  0x00000000017a948f in fil_aio_wait (segment=9) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
        ret = true
        fil_node = 0x7fd16fffd530
        message = 0x7fd162d94500
        type = 11
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b07c8 <n+72>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
        segment = 9
        start = 2
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 13 (Thread 0x7fd1583ff700 (LWP 23932)):
+bt full
#0  0x00007fd1790f1ab2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00000000015859a7 in os_event::timed_wait (this=0x7fd16efc7110, abstime=0x7fd1583fe910) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:281
        ret = 0
#2  0x0000000001585d13 in os_event::wait_time_low (this=0x7fd16efc7110, time_in_usec=1000000, reset_sig_count=2) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:408
        timed_out = false
        abstime = {
          tv_sec = 1426843237, 
          tv_nsec = 186313000
        }
#3  0x0000000001585f55 in os_event_wait_time_low (event=0x7fd16efc7110, time_in_usec=1000000, reset_sig_count=2) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:516
No locals.
#4  0x0000000001742b4e in pc_sleep_if_needed (next_loop_time=1426843237186, sig_count=2) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/buf/buf0flu.cc:2636
        sleep_us = 1000000
        cur_time = 1426843236186
#5  0x00000000017439ca in buf_flush_page_cleaner_coordinator (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/buf/buf0flu.cc:3016
        next_loop_time = 1426843237186
        n_flushed = 0
        n_flushed_last = 0
        warn_count = 0
        sig_count = 2
        last_pages = 0
        ret_sleep = 1
        warn_interval = 1
        last_activity = 171
        n_evicted = 0
        success = false
#6  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#7  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 12 (Thread 0x7fd1563ff700 (LWP 23984)):
+bt full
#0  0x00007fd1790f1ab2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00000000015859a7 in os_event::timed_wait (this=0x7fd162631710, abstime=0x7fd1563fee40) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:281
        ret = 0
#2  0x0000000001585d13 in os_event::wait_time_low (this=0x7fd162631710, time_in_usec=1000000, reset_sig_count=1) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:408
        timed_out = false
        abstime = {
          tv_sec = 1426843237, 
          tv_nsec = 187077000
        }
#3  0x0000000001585f55 in os_event_wait_time_low (event=0x7fd162631710, time_in_usec=1000000, reset_sig_count=1) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:516
No locals.
#4  0x000000000155ae1d in lock_wait_timeout_thread (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/lock/lock0wait.cc:496
        slot = 0x7fd16267d168
        sig_count = 1
        event = 0x7fd162631710
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 11 (Thread 0x7fd1553ff700 (LWP 23985)):
+bt full
#0  0x00007fd1790f1ab2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00000000015859a7 in os_event::timed_wait (this=0x7fd16efc6e10, abstime=0x7fd1553feb40) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:281
        ret = 0
#2  0x0000000001585d13 in os_event::wait_time_low (this=0x7fd16efc6e10, time_in_usec=1000000, reset_sig_count=1) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:408
        timed_out = false
        abstime = {
          tv_sec = 1426843237, 
          tv_nsec = 187280000
        }
#3  0x0000000001585f55 in os_event_wait_time_low (event=0x7fd16efc6e10, time_in_usec=1000000, reset_sig_count=1) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:516
No locals.
#4  0x000000000166cded in srv_error_monitor_thread (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0srv.cc:1684
        old_lsn = 2512146
        sig_count = 1
        waiter = 140537055147776
        old_waiter = 140537055147776
        sema = 0x0
        old_sema = 0x0
        fatal_cnt = 0
        new_lsn = 2512146
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 10 (Thread 0x7fd154bfe700 (LWP 23986)):
+bt full
#0  0x00007fd1790f1ab2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00000000015859a7 in os_event::timed_wait (this=0x7fd16efc6f10, abstime=0x7fd154bfde20) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:281
        ret = 110
#2  0x0000000001585d13 in os_event::wait_time_low (this=0x7fd16efc6f10, time_in_usec=5000000, reset_sig_count=1) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:408
        timed_out = false
        abstime = {
          tv_sec = 1426843239, 
          tv_nsec = 185960000
        }
#3  0x0000000001585f55 in os_event_wait_time_low (event=0x7fd16efc6f10, time_in_usec=5000000, reset_sig_count=1) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:516
No locals.
#4  0x000000000166c8e5 in srv_monitor_thread (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0srv.cc:1518
        sig_count = 1
        time_elapsed = 10
        last_monitor_time = 1426843224
        current_time = 1426843234
        mutex_skipped = 0
        last_srv_print_monitor = 0
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 9 (Thread 0x7fd1543fd700 (LWP 23987)):
+bt full
#0  0x00007fd1790f499d in nanosleep () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x0000000001586bf4 in os_thread_sleep (tm=1000000) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0thread.cc:258
        t = {
          tv_sec = 1, 
          tv_nsec = 0
        }
#2  0x000000000166e16a in srv_master_sleep () at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0srv.cc:2197
No locals.
#3  0x000000000166e2c3 in srv_master_thread (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0srv.cc:2244
        _db_stack_frame_ = {
          func = 0x1cbbd95 "?func", 
          file = 0x1cbbd9b "?file", 
          level = 2147483649, 
          prev = 0x0
        }
        slot = 0x7fd16ffe2200
        old_activity_count = 171
        last_print_time = 1426842175
#4  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#5  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 8 (Thread 0x7fd153bfc700 (LWP 23988)):
+bt full
#0  0x00007fd1790f1705 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x0000000001586168 in os_event::wait (this=0x7fd16efc6d10) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:160
        ret = 0
#2  0x0000000001585b33 in os_event::wait_low (this=0x7fd16efc6d10, reset_sig_count=9) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:331
No locals.
#3  0x0000000001585f7a in os_event_wait_low (event=0x7fd16efc6d10, reset_sig_count=9) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:533
No locals.
#4  0x000000000166ec8b in srv_purge_coordinator_suspend (slot=0x7fd16ffe2238, rseg_history_len=28) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0srv.cc:2545
        ret = 1
        stop = true
        SRV_PURGE_MAX_TIMEOUT = 10000
        sig_count = 9
#5  0x000000000166f1d4 in srv_purge_coordinator_thread (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0srv.cc:2664
        slot = 0x7fd16ffe2238
        n_total_purged = 0
        rseg_history_len = 28
        n_pages_purged = 0
#6  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#7  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 7 (Thread 0x7fd1527ff700 (LWP 23989)):
+bt full
#0  0x00007fd1790f1705 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x0000000001586168 in os_event::wait (this=0x7fd16efc7010) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:160
        ret = 0
#2  0x0000000001585b33 in os_event::wait_low (this=0x7fd16efc7010, reset_sig_count=1) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:331
No locals.
#3  0x0000000001585f7a in os_event_wait_low (event=0x7fd16efc7010, reset_sig_count=0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:533
No locals.
#4  0x0000000001739bf5 in buf_dump_thread (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/buf/buf0dump.cc:692
No locals.
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 6 (Thread 0x7fd151ffe700 (LWP 23990)):
+bt full
#0  0x00007fd1790f1ab2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00000000015859a7 in os_event::timed_wait (this=0x7fd162632710, abstime=0x7fd151ffde50) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:281
        ret = 0
#2  0x0000000001585d13 in os_event::wait_time_low (this=0x7fd162632710, time_in_usec=10000000, reset_sig_count=1) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:408
        timed_out = false
        abstime = {
          tv_sec = 1426843244, 
          tv_nsec = 185949000
        }
#3  0x0000000001585f55 in os_event_wait_time_low (event=0x7fd162632710, time_in_usec=10000000, reset_sig_count=0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:516
No locals.
#4  0x0000000001795e11 in dict_stats_thread (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/dict/dict0stats_bg.cc:363
No locals.
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 5 (Thread 0x7fd1517fd700 (LWP 23991)):
+bt full
#0  0x00007fd1790f1ab2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00000000015859a7 in os_event::timed_wait (this=0x7fd1607bb610, abstime=0x7fd1517fcc40) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:281
        ret = 0
#2  0x0000000001585d13 in os_event::wait_time_low (this=0x7fd1607bb610, time_in_usec=5000000, reset_sig_count=1) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:408
        timed_out = false
        abstime = {
          tv_sec = 1426843239, 
          tv_nsec = 185950000
        }
#3  0x0000000001585f55 in os_event_wait_time_low (event=0x7fd1607bb610, time_in_usec=5000000, reset_sig_count=1) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:516
No locals.
#4  0x00000000016cc98a in ib_wqueue_timedwait (wq=0x7fd170fb2a50, wait_in_usecs=5000000) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/ut/ut0wqueue.cc:161
        error = 140536992222416
        sig_count = 1
        node = 0x0
#5  0x00000000017e7e2f in fts_optimize_thread (arg=0x7fd170fb2a50) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fts/fts0opt.cc:2977
        msg = 0x0
        heap = 0x7fd150010310
        heap_alloc = 0x7fd150010398
        current = 0
        done = 0
        n_tables = 0
        n_optimize = 0
        wq = 0x7fd170fb2a50
        tables = 0x7fd1500103b8
#6  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#7  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 4 (Thread 0x7fd150ffc700 (LWP 23992)):
+bt full
#0  0x00007fd1790f1705 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x0000000001586168 in os_event::wait (this=0x7fd16efc7210) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:160
        ret = 0
#2  0x0000000001585b33 in os_event::wait_low (this=0x7fd16efc7210, reset_sig_count=1) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:331
No locals.
#3  0x0000000001585f7a in os_event_wait_low (event=0x7fd16efc7210, reset_sig_count=0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:533
No locals.
#4  0x0000000001725a93 in buf_resize_thread (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/buf/buf0buf.cc:2734
No locals.
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 3 (Thread 0x7fd17972c700 (LWP 23993)):
+bt full
#0  0x00007fd1790f1705 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00000000013a5cb8 in native_cond_wait (cond=0x7fd170ff5f80, mutex=0x7fd170ff5fe0) at /bzr/mysql-5.7.6-m16_dbg/include/thr_cond.h:126
No locals.
#2  0x00000000013a5e1e in safe_cond_wait (cond=0x7fd170ff5f80, mp=0x7fd170ff5fb8, file=0x18e60a0 "/bzr/mysql-5.7.6-m16_dbg/sql/mysqld_thd_manager.cc", line=238) at /bzr/mysql-5.7.6-m16_dbg/mysys/thr_cond.c:48
        error = 32721
#3  0x0000000000bb386e in my_cond_wait (cond=0x7fd170ff5f80, mp=0x7fd170ff5fb8, file=0x18e60a0 "/bzr/mysql-5.7.6-m16_dbg/sql/mysqld_thd_manager.cc", line=238) at /bzr/mysql-5.7.6-m16_dbg/include/thr_cond.h:181
No locals.
#4  0x0000000000bb3b7a in inline_mysql_cond_wait (that=0x7fd170ff5f80, mutex=0x7fd170ff5fb8, src_file=0x18e60a0 "/bzr/mysql-5.7.6-m16_dbg/sql/mysqld_thd_manager.cc", src_line=238) at /bzr/mysql-5.7.6-m16_dbg/include/mysql/psi/mysql_thread.h:1198
        result = 0
#5  0x0000000000bb4485 in Global_THD_manager::wait_till_no_thd (this=0x7fd170ff4000) at /bzr/mysql-5.7.6-m16_dbg/sql/mysqld_thd_manager.cc:238
No locals.
#6  0x0000000000ba0e9f in close_connections () at /bzr/mysql-5.7.6-m16_dbg/sql/mysqld.cc:1208
        dump_thread_count = 0
        _db_stack_frame_ = {
          func = 0x1cbbd95 "?func", 
          file = 0x1cbbd9b "?file", 
          level = 2147483649, 
          prev = 0x0
        }
        dump_thread_kill_retries = 8
        thd_manager = 0x7fd170ff4000
        set_kill_conn = {
          <Do_THD_Impl> = {
            _vptr.Do_THD_Impl = 0x24ac7d0 <vtable for Set_kill_conn+16>
          }, 
          members of Set_kill_conn: 
          m_dump_thread_count = 0, 
          m_kill_dump_threads_flag = false
        }
        call_close_conn = {
          <Do_THD_Impl> = {
            _vptr.Do_THD_Impl = 0x24ac790 <vtable for Call_close_conn+16>
          }, <No data fields>}
#7  0x0000000000ba2b94 in signal_hand (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/sql/mysqld.cc:2272
        sig = 15
        set = {
          __val =             {[0] = 16389,
            [1] = 0 <repeats 15 times>}
        }
        __PRETTY_FUNCTION__ =           "void* signal_hand(void*)"
#8  0x00000000013d2299 in pfs_spawn_thread (arg=0x7fd170fb2d50) at /bzr/mysql-5.7.6-m16_dbg/storage/perfschema/pfs.cc:2147
        typed_arg = 0x7fd170fb2d50
        user_arg = 0x0
        pfs = 0x7fd172c1a200
        user_start_routine = 0xba288c <signal_hand(void*)>
        klass = 0x7fd177068480
#9  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#10 0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 2 (Thread 0x7fd1796aa700 (LWP 24095)):
+bt full
#0  0x00007fd1790f499d in nanosleep () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x0000000001586bf4 in os_thread_sleep (tm=45060) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0thread.cc:258
        t = {
          tv_sec = 0, 
          tv_nsec = 45060000
        }
#2  0x00000000016675b1 in srv_conc_enter_innodb_with_atomics (trx=0x7fd16b400d50) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0conc.cc:214
        sleep_in_us = 45060
        n_sleeps = 45061
        notified_mysql = 1
#3  0x00000000016676a7 in srv_conc_enter_innodb (prebuilt=0x7fd14f4bf098) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0conc.cc:256
        trx = 0x7fd16b400d50
#4  0x00000000014cda1d in innobase_srv_conc_enter_innodb (prebuilt=0x7fd14f4bf098) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/handler/ha_innodb.cc:1239
        trx = 0x7fd16b400d50
#5  0x00000000014d8f55 in ha_innobase::index_read (this=0x7fd14f461820, buf=0x7fd14f462c20 "\217\066", ' ' <repeats 191 times>, '\217' <repeats 207 times>, "\220%K\002", key_ptr=0x7fd14f462c21 "6", ' ' <repeats 191 times>, '\217' <repeats 207 times>, "\220%K\002", key_len=192, find_flag=HA_READ_KEY_EXACT) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/handler/ha_innodb.cc:7669
        __PRETTY_FUNCTION__ =           "virtual int ha_innobase::index_read(uchar*, const uchar*, uint, ha_rkey_function)"
        ret = 32721
        _db_stack_frame_ = {
          func = 0x18f75f1 "handler::ha_index_read_map", 
          file = 0x18f6ad8 "/bzr/mysql-5.7.6-m16_dbg/sql/handler.cc", 
          level = 2147483658, 
          prev = 0x7fd1796a4a40
        }
        index = 0x7fd16effd298
        mode = PAGE_CUR_GE
        match_mode = 1
        error = 1329999592
#6  0x0000000000c2680a in handler::index_read_map (this=0x7fd14f461820, buf=0x7fd14f462c20 "\217\066", ' ' <repeats 191 times>, '\217' <repeats 207 times>, "\220%K\002", key=0x7fd14f462c21 "6", ' ' <repeats 191 times>, '\217' <repeats 207 times>, "\220%K\002", keypart_map=18446744073709551615, find_flag=HA_READ_KEY_EXACT) at /bzr/mysql-5.7.6-m16_dbg/sql/handler.h:2596
        key_len = 192
#7  0x0000000000c19cf8 in handler::ha_index_read_map (this=0x7fd14f461820, buf=0x7fd14f462c20 "\217\066", ' ' <repeats 191 times>, '\217' <repeats 207 times>, "\220%K\002", key=0x7fd14f462c21 "6", ' ' <repeats 191 times>, '\217' <repeats 207 times>, "\220%K\002", keypart_map=18446744073709551615, find_flag=HA_READ_KEY_EXACT) at /bzr/mysql-5.7.6-m16_dbg/sql/handler.cc:2683
        result = 0
        _db_stack_frame_ = {
          func = 0x1ae98c7 "tz_load_from_open_tables", 
          file = 0x1ae95d0 "/bzr/mysql-5.7.6-m16_dbg/sql/tztime.cc", 
          level = 2147483657, 
          prev = 0x7fd1796a4ab0
        }
        __PRETTY_FUNCTION__ =           "int handler::ha_index_read_map(uchar*, const uchar*, key_part_map, ha_rkey_function)"
#8  0x00000000011a2787 in tz_load_from_open_tables (tz_name=0x7fd14f42c9c0, tz_tables=0x7fd1796a6498) at /bzr/mysql-5.7.6-m16_dbg/sql/tztime.cc:1901
        ttime = 140537661906720
        types =           "\000\000\000\000\000\000\000\000\200\354eO\321\177\000\000\000\000\000\000\000\000\000\000\200\354eO\321\177\000\000\350*l\002\000\000\000\000\a\000\000\000\000\000\000\000\350*l\002\000\000\000\000\017I\305\001\000\000\000\000\340\\jy\321\177\000\000\235\017O\001\000\000\000\000\340H\305\001\000\000\000\000\020_jy\321\177\000\000(Q\305\001\000\000\000\000`_jy\321\177\000\000(Q\305\001\000\000\000\000p_jy\321\177\000\000 ]jy\321\177\000\000\235\017O\001\000\000\000\000p\340\310\001\000\000\000\000p_jy\321\177\000\000(Q\305\001\000\000\000\000\240_jy\321\177\000\000(Q\305\001\000\000\000\000\260_jy\321\177\000\000p\340\310\001\000\000\000\000\240_jy\321\177\000\000\000\000\000\000\000\000\000\000\070\326k\002", '\000' <repeats 12 times>, "\070\326k\002", '\000' <repeats 12 times>, "\070\326k\002\000\000\000\000\200Pjy\321\177\000\000\276/8\001", '\000' <repeats 12 times>, "\070\326k\002", '\000' <repeats 12 times>, "\070\326k\002\000\000\000\000\360\332\177t\321\177\000\000\340Mjy\321\177\000\000\000\000\000\000\000\000\000\000\070\326k\002", '\000' <repeats 12 times>, "\070\326k\002", '\000' <repeats 12 times>, "\070\326k\002\000\000\000\000\360", <incomplete sequence \332>
        chars =           "\360Njy\321\177\000\000\340*l\002\315\000\000\000pNjy\321\177\000\000|\270=\001\000\000\000\000@\000\000\000\000\000\000\000\070\326k\002\315\000\000\000PNjy\321\177\000\000׃l\001\315\000\000\000\240Njy\321\177\000\000|\270=\001\000\000\000\000@", '\000' <repeats 11 times>, "\315\000\000\000\070\300BO\321\177\000\000M\300BO\321\177\000\000 \300BO\321\177\000\000\000\351\nw\321\177\000\000\260Njy\321\177\000\000\347\204h\001\000\000\000\000@\234TO\321\177\000\000\000\000\000\000\000\000\000\000@\000\000\000\000\000\000\000\070\326k\002\000\000\000\000\000ujy\321\177\000\000\300\262AO\315\000\000\000\220Pjy\321\177\000\000\065\202h\001\000\000\000\000@\000\000\000\000\000\000\000\001\326k\002", '\000' <repeats 20 times>, "\001\000\000\000\000\000\000\000\070\326k\002\000\000\000\000@\000\000\000\000\000\000\000\001\300BO", '\000' <repeats 20 times>, "\001\000\000\000\000\000\000\000\070\326k\002\000\000\000\000@\000\000\000\000\000\000\000\065\300BO\321\177\000\000@\326k\002\000\000\000\000`Ojy\321\177\000\000pOjy\321\177\000\000\027wh\001\000\000\000\000\200\347AO\321\177\000\000\300Ojy\321\177\000\000\310Ojy\321\177\000\000\260Ojy\321\177\000\000 Pjy\321\177\000\000-oh\001\000\000\000\000`Rjy\321\177\000\000\070\326k\002\000\000\000\000@\326k\002\000\000\000\000\001Ojy\000\177\000\000@\326k\002", '\000' <repeats 20 times>, "@\326k\002\000\000\000\000@\326k\002", '\000' <repeats 12 times>, "@\326k\002\000\000\000\000\300\351\nw\321\177\000\000@\326k\002\000\000\000\000\020Pjy\321\177\000"
        __PRETTY_FUNCTION__ =           "Time_zone* tz_load_from_open_tables(const String*, TABLE_LIST*)"
        table = 0x7fd14f4c6410
        tmp_tzname = 0x10317f8 <open_trans_system_tables_for_read(THD*, TABLE_LIST*)+487>
        tzid = 32721
        abbr = {
          m_ptr = 0x7fd1796a4ff0 " Pjy\321\177", 
          m_length = 766, 
          m_charset = 0x25bf920 <my_charset_latin1>, 
          m_alloced_length = 766, 
          m_is_alloced = false
        }
        alloc_buff = 0x0
        tz_info = 0x0
        return_val = 0x0
        tz_name_buff = 0x0
        ttis =           {[0] = {
            tt_gmtoff = 140537579428576, 
            tt_isdst = 2037009263, 
            tt_abbrind = 32721
          },
          [1] = {
            tt_gmtoff = 140537661901680, 
            tt_isdst = 23887889, 
            tt_abbrind = 0
          },
          [2] = {
            tt_gmtoff = 273315002708459520, 
            tt_isdst = 139068872, 
            tt_abbrind = 208276118
          },
          [3] = {
            tt_gmtoff = 1128168117959003587, 
            tt_isdst = 40571020, 
            tt_abbrind = 0
          },
          [4] = {
            tt_gmtoff = 0, 
            tt_isdst = 2037009616, 
            tt_abbrind = 32721
          },
          [5] = {
            tt_gmtoff = 140537579429552, 
            tt_isdst = 2037009344, 
            tt_abbrind = 32721
          },
          [6] = {
            tt_gmtoff = 140537661901792, 
            tt_isdst = 23890142, 
            tt_abbrind = 0
          },
          [7] = {
            tt_gmtoff = 0, 
            tt_isdst = 40621624, 
            tt_abbrind = 0
          },
          [8] = {
            tt_gmtoff = 0, 
            tt_isdst = 40621624, 
            tt_abbrind = 0
          },
          [9] = {
            tt_gmtoff = 140537579429552, 
            tt_isdst = 29765285, 
            tt_abbrind = 0
          },
          [10] = {
            tt_gmtoff = 140537661902032, 
            tt_isdst = 40643296, 
            tt_abbrind = 0
          },
          [11] = {
            tt_gmtoff = 140537661901872, 
            tt_isdst = 23888773, 
            tt_abbrind = 0
          },
          [12] = {
            tt_gmtoff = 40643304, 
            tt_isdst = 2037009440, 
            tt_abbrind = 32721
          },
          [13] = {
            tt_gmtoff = 140537661901872, 
            tt_isdst = 23888855, 
            tt_abbrind = 0
          },
          [14] = {
            tt_gmtoff = 40643304, 
            tt_isdst = 40643296, 
            tt_abbrind = 0
          },
          [15] = {
            tt_gmtoff = 40643304, 
            tt_isdst = 1954537168, 
            tt_abbrind = 32721
          },
          [16] = {
            tt_gmtoff = 0, 
            tt_isdst = 1332079744, 
            tt_abbrind = 32721
          },
          [17] = {
            tt_gmtoff = 140537661901968, 
            tt_isdst = 2037009520, 
            tt_abbrind = 32721
          },
          [18] = {
            tt_gmtoff = 140537661902000, 
            tt_isdst = 23887725, 
            tt_abbrind = 0
          },
          [19] = {
            tt_gmtoff = 29708584, 
            tt_isdst = 2037009616, 
            tt_abbrind = 32721
          }}
        tmp_tz_info = {
          leapcnt = 0, 
          timecnt = 0, 
          typecnt = 0, 
          charcnt = 0, 
          revcnt = 0, 
          ats = 0x0, 
          types = 0x0, 
          ttis = 0x0, 
          chars = 0x0, 
          lsis = 0x0, 
          revts = 0x0, 
          revtis = 0x0, 
          fallback_tti = 0x0
        }
        res = 32721
        ttid = 1329700864
        buff =           " Pjy\321\177\000\000\322mh\001\000\000\000\000\060\000\000\000\000\000\000\000@Pjy\321\177\000\001@\326k\002", '\000' <repeats 12 times>, "`Qjy\321\177\000\000B\\h\001\000\000\000\000\060\000\000\000\000\000\000\000`Rjy\000\000\000\000\260Pjy\321\177\000\000\215\273=\001\000\000\000\000@\000\000\000\000\000\000\000\247uh\001\315\000\000\000\320Pjy\321\177\000\000|\270=\001\000\000\000\000@\000\000\000\000\000\000\000\020\000\000\000\315\000\000\000\260Pjy\321\177\000\000\233wh\001\000\000\000\000\260Pjy\321\177\000\000\260d0y\321\177\000\000p\234TO\321\177\000\000p\234TO\321\177\000\000\020Qjy\321\177\000\000\001\000\000\000\000\000\000\000\001\000\000\000\000\000\000\000\000\351\nw\321\177\000\000\020Qjy\321\177\000\000\347\204h\001\000\000\000\000@\234TO\321\177\000\000\000\000\000\000\000\000\000\000@\000\000\000\000\000\000\000\070\326k\002\000\000\000\000\000ujy\321\177\000\000\300\262AO\315\000\000\000\360Rjy\321\177\000\000\065\202h\001\000\000\000\000P\234TO\321\177\000\000\001\326k\002", '\000' <repeats 20 times>, "\001\000\000\000\000\000\000\000\070\326k\002\000\000\000\000@\000\000\000\000\000\000\000\070\326k\002\000\000\000\000\230Qjy\321\177\000\000\001\000\000\000\000\000\000\000\340Qjy\321\177\000\000\215\273=\001\000\000\000\000\020\001\000\000\000\000\000\000\070\326k\002\000\000\000\000@\326k\002\000\000\000\000\300Qjy\321\177\000\000\320Qjy\321\177\000\000\027wh\001\000\000\000\000\200\347AO\321\177\000\000 Rjy\321\177\000\000(Rjy\321\177\000\000\"݊\001\000\000\000\000\200Rjy\000\177\000\000\034\000\000\000\000\000\000\000<sjy\321\177\000\000\034\000\000\000\000\000\000\000\064\334\373p\321\177\000\000 s[\002\000\000\000\000@\326k\002\000\000\000\000\034\000\000\000\000\000\000\000\200Rjy\321\177\000\000\310\326:\001\000\000\000\000\300Rjy\321\177\000\000\034\000\000\000\000\000\000\000<sjy\321\177\000\000\300\351\nw\035\273\226. s[\002\000\000\000\000\020\334\373p\321\177\000\000\000\000\000\000\000\000\000\000\210@|`\321\177\000\000\200Rjy\321\177\000\000\023\325:\001\000\000\000\000\020E:b\001\000\000\000\200@|`\321\177\000\000\340Rjy\321\177\000\000n\334:\001\000\000\000\000\200@|`\321\177\000\000\200@|`\321\177\000\000<sjy\321\177\000\000\034\000\000\000\035\273\226. s[\002\000\000\000\000\270\237=w\321\177\000\000\060\362?b\321\177\000\000\020\334\373p\321\177\000\000\020E:b\321\177\000\000\034\000\000\000\001\000\000\000\060Sjy\321\177\000\000\226\343:\001\000"
        ats =           {[0] = 122296095504,
          [1] = 140537661911868,
          [2] = 140537243648128,
          [3] = 40063552,
          [4] = 140537661903664,
          [5] = 140537520446480,
          [6] = 140537625419704,
          [7] = 4097547182914142324,
          [8] = 140537661903744,
          [9] = 16534008,
          [10] = 140537661903879,
          [11] = 140537661911864,
          [12] = 140537243648128,
          [13] = 1048576,
          [14] = 140537661903856,
          [15] = 140537520447096,
          [16] = 140537661903808,
          [17] = 0,
          [18] = 140537243648144,
          [19] = 140536954593616,
          [20] = 140537661903808,
          [21] = 16535970,
          [22] = 140536954683888,
          [23] = 20593039,
          [24] = 4311499013,
          [25] = 55834574848,
          [26] = 140537661903824,
          [27] = 20593039,
          [28] = 29004571,
          [29] = 20593039,
          [30] = 140537661903856,
          [31] = 55855170356,
          [32] = 140537661903872,
          [33] = 20595508,
          [34] = 29329155,
          [35] = 25799588,
          [36] = 140537661903920,
          [37] = 40649120,
          [38] = 140537661903936,
          [39] = 25800116,
          [40] = 140536954544352,
          [41] = 140536954552448,
          [42] = 140537661904496,
          [43] = 25811102,
          [44] = 140537661904528,
          [45] = 9298620717980,
          [46] = 0,
          [47] = 31536000,
          [48] = 140537661911832,
          [49] = 140536954593432,
          [50] = 48,
          [51] = 1332079744,
          [52] = 40621632,
          [53] = 140536954611584,
          [54] = 140537661904080,
          [55] = 20593039,
          [56] = 140537661912320,
          [57] = 55834574880,
          [58] = 140537661904080,
          [59] = 20595508,
          [60] = 27020647,
          [61] = 25799588,
          [62] = 140537661904128,
          [63] = 40649120,
          [64] = 140537661904144,
          [65] = 25800116,
          [66] = 140536954544352,
          [67] = 140536954552448,
          [68] = 140537661904704,
          [69] = 25811102,
          [70] = 140537661904768,
          [71] = 15154681638792,
          [72] = 140537661906320,
          [73] = 140536954593280,
          [74] = 38489872,
          [75] = 0,
          [76] = 140537661906320,
          [77] = 880488888576,
          [78] = 140537661904336,
          [79] = 880489117820,
          [80] = 140537661904352,
          [81] = 20822140,
          [82] = 64,
          [83] = 881798084864,
          [84] = 140537661904336,
          [85] = 18441516,
          [86] = 140537661904304,
          [87] = 20593039,
          [88] = 140537661904432,
          [89] = 20593039,
          [90] = 140537661904336,
          [91] = 882465499392,
          [92] = 140537661904448,
          [93] = 20822140,
          [94] = 64,
          [95] = 880491922663,
          [96] = 140536955837504,
          [97] = 0,
          [98] = 64,
          [99] = 40621624,
          [100] = 140537661912320,
          [101] = 881798001344,
          [102] = 140537661904896,
          [103] = 23626293,
          [104] = 0,
          [105] = 140537622096128,
          [106] = 140537661904512,
          [107] = 23626983,
          [108] = 140536955837504,
          [109] = 0,
          [110] = 64,
          [111] = 40621624,
          [112] = 140537661912320,
          [113] = 881798001344,
          [114] = 140537661904992,
          [115] = 23626293,
          [116] = 40621632,
          [117] = 2037011969,
          [118] = 0,
          [119] = 0,
          [120] = 1,
          [121] = 40621624,
          [122] = 64,
          [123] = 140537661904688,
          [124] = 140537661904696,
          [125] = 140537661904672,
          [126] = 140537661904784,
          [127] = 23621421,
          [128] = 140537661905360,
          [129] = 40621624,
          [130] = 40621632,
          [131] = 140537661904688,
          [132] = 140537661904704,
          [133] = 23623447,
          [134] = 140536954611584,
          [135] = 140537661904784,
          [136] = 140537661904792,
          [137] = 140537661904768,
          [138] = 140537661904880,
          [139] = 23621421,
          [140] = 140537661905456,
          [141] = 40621624,
          [142] = 40621632,
          [143] = 23620865,
          [144] = 40621632,
          [145] = 0,
          [146] = 0,
          [147] = 40621632,
          [148] = 40621632,
          [149] = 0,
          [150] = 140537661904912,
          [151] = 140537622096320,
          [152] = 40621632,
          [153] = 140537661904864,
          [154] = 140537661904880,
          [155] = 23621074,
          [156] = 48,
          [157] = 72198131699832848,
          [158] = 40621632,
          [159] = 0,
          [160] = 140537661905200,
          [161] = 23616578,
          [162] = 140537661904928,
          [163] = 2037013040,
          [164] = 140537661905024,
          [165] = 20822925,
          [166] = 64,
          [167] = 23623079,
          [168] = 40621624,
          [169] = 140537661905008,
          [170] = 140536955837552,
          [171] = 16,
          [172] = 140537661905024,
          [173] = 23623579,
          [174] = 140537661905024,
          [175] = 20593039,
          [176] = 140536955837552,
          [177] = 55855167887,
          [178] = 140537661905040,
          [179] = 20595508,
          [180] = 26177420,
          [181] = 25799588,
          [182] = 29329155,
          [183] = 40649120,
          [184] = 140537661905104,
          [185] = 25800116,
          [186] = 140536954544352,
          [187] = 140536954552448,
          [188] = 140537661905664,
          [189] = 25811102,
          [190] = 140537661905728,
          [191] = 5562003241359,
          [192] = 140537661905712,
          [193] = 55875196472,
          [194] = 140537661905168,
          [195] = 20595508,
          [196] = 29329336,
          [197] = 25799588,
          [198] = 0,
          [199] = 40649120,
          [200] = 140537661905232,
          [201] = 25800116,
          [202] = 140536954544352,
          [203] = 20593039,
          [204] = 140537661905792,
          [205] = 55860385950,
          [206] = 140537661905264,
          [207] = 20595508,
          [208] = 29347471,
          [209] = 25799588,
          [210] = 140537661905328,
          [211] = 40649120,
          [212] = 140537661905328,
          [213] = 25800116,
          [214] = 140536954544352,
          [215] = 140536954552448,
          [216] = 140537661905888,
          [217] = 20593039,
          [218] = 140537661905936,
          [219] = 57164280512,
          [220] = 140537661905376,
          [221] = 20595508,
          [222] = 26183254,
          [223] = 25799588,
          [224] = 48,
          [225] = 40649120,
          [226] = 140537661905440,
          [227] = 25800116,
          [228] = 140536954544352,
          [229] = 140536954552448,
          [230] = 140537661906000,
          [231] = 20593039,
          [232] = 140537661906048,
          [233] = 55855167887,
          [234] = 140537661905488,
          [235] = 20595508,
          [236] = 28888235,
          [237] = 25799588,
          [238] = 29028411,
          [239] = 40649120,
          [240] = 140537661905552,
          [241] = 25800116,
          [242] = 140536954544352,
          [243] = 140536954552448,
          [244] = 140537661906112,
          [245] = 25811102,
          [246] = 140537661906144,
          [247] = 40956833945758,
          [248] = 140537661906192,
          [249] = 20593039,
          [250] = 140537661906160,
          [251] = 55860385950,
          [252] = 140537661905632,
          [253] = 20595508,
          [254] = 28663403,
          [255] = 25799588,
          [256] = 140536954552448,
          [257] = 40649120,
          [258] = 140537661905696,
          [259] = 25800116,
          [260] = 140536954544352,
          [261] = 140536954552448,
          [262] = 140537661906256,
          [263] = 20593039,
          [264] = 140537661906304,
          [265] = 57164275712,
          [266] = 140537661905744,
          [267] = 20595508,
          [268] = 27023285,
          [269] = 20593039,
          [270] = 140537661905792,
          [271] = 55875223968,
          [272] = 140537661905792,
          [273] = 20595508,
          [274] = 26179567,
          [275] = 25799588,
          [276] = 140537661906368,
          [277] = 40649120,
          [278] = 140537661905856,
          [279] = 25800116,
          [280] = 140536954544352,
          [281] = 140536954552448,
          [282] = 140537661906416,
          [283] = 25811102,
          [284] = 140537661906448,
          [285] = 14190584611902,
          [286] = 140537661905936,
          [287] = 20593039,
          [288] = 140536954544352,
          [289] = 57164611616,
          [290] = 140537661905936,
          [291] = 20595508,
          [292] = 27026656,
          [293] = 25799588,
          [294] = 140537661905968,
          [295] = 40649120,
          [296] = 140537661906000,
          [297] = 25800116,
          [298] = 140536954544352,
          [299] = 140536954552448,
          [300] = 140537661906560,
          [301] = 25811102,
          [302] = 140537661906592,
          [303] = 42799369700245,
          [304] = 140537661906064,
          [305] = 140536954544256,
          [306] = 140537661906080,
          [307] = 25799782,
          [308] = 140536954544352,
          [309] = 140536954552448,
          [310] = 140537661906112,
          [311] = 25811174,
          [312] = 140536954552448,
          [313] = 8589934602,
          [314] = 140537661906368,
          [315] = 20060261,
          [316] = 140537661906720,
          [317] = 140536954593280,
          [318] = 27023285,
          [319] = 27017944,
          [320] = 2147483658,
          [321] = 140537661906416,
          [322] = 140537516958736,
          [323] = 140536954600416,
          [324] = 140537661906224,
          [325] = 19087262,
          [326] = 94,
          [327] = 140536954600416,
          [328] = 140537661906256,
          [329] = 20593039,
          [330] = 140536954552448,
          [331] = 55834574858,
          [332] = 140537661906272,
          [333] = 20593039,
          [334] = 26179567,
          [335] = 20593039,
          [336] = 140537661906304,
          [337] = 55855170356,
          [338] = 140537661906320,
          [339] = 20595508,
          [340] = 140537661906352,
          [341] = 20595605,
          [342] = 140537661906368,
          [343] = 140536954544256,
          [344] = 140537661906384,
          [345] = 25799782,
          [346] = 140536954544352,
          [347] = 140536954552448,
          [348] = 140537661906416,
          [349] = 25811174,
          [350] = 140536954552448,
          [351] = 8589934601,
          [352] = 140537661906480,
          [353] = 12696716,
          [354] = 2147483657,
          [355] = 140536954929184,
          [356] = 27026656,
          [357] = 27017944,
          [358] = 140537772376073,
          [359] = 140537661906592,
          [360] = 140537661906528,
          [361] = 12360669,
          [362] = 8806013655552,
          [363] = 140537272624600,
          [364] = 140537272624600,
          [365] = 140536955339792,
          [366] = 140537661906560,
          [367] = 12360727,
          [368] = 140536954552448,
          [369] = 8589934600}
        _db_stack_frame_ = {
          func = 0x1ae9d0e "my_tz_find", 
          file = 0x1ae95d0 "/bzr/mysql-5.7.6-m16_dbg/sql/tztime.cc", 
          level = 2147483656, 
          prev = 0x7fd1796a5f00
        }
#9  0x00000000011a39ba in my_tz_find (thd=0x7fd14f41a000, name=0x7fd14f42c9c0) at /bzr/mysql-5.7.6-m16_dbg/sql/tztime.cc:2355
        tz_tables =           {[0] = {
            next_local = 0x7fd1796a6498, 
            next_global = 0x7fd1796a6498, 
            prev_global = 0x0, 
            db = 0x1ae9697 "mysql", 
            table_name = 0x1ae9f28 "time_zone_name", 
            alias = 0x1ae9f28 "time_zone_name", 
            target_tablespace_name = {
              str = 0x0, 
              length = 0
            }, 
            schema_table_name = 0x0, 
            option = 0x0, 
            m_tableno = 0, 
            m_map = 0, 
            m_join_cond = 0x0, 
            sj_on_expr = 0x0, 
            sj_inner_tables = 0, 
            natural_join = 0x0, 
            is_natural_join = false, 
            join_using_fields = 0x0, 
            join_columns = 0x0, 
            is_join_columns_complete = false, 
            next_name_resolution_table = 0x0, 
            index_hints = 0x0, 
            table = 0x7fd14f4c6410, 
            table_id = {
              static TABLE_ID_MAX = 281474976710655, 
              m_id = 0
            }, 
            derived_result = 0x0, 
            correspondent_table = 0x0, 
            derived = 0x0, 
            schema_table = 0x0, 
            schema_select_lex = 0x0, 
            schema_table_reformed = false, 
            schema_table_param = 0x0, 
            select_lex = 0x0, 
            view = 0x0, 
            field_translation = 0x0, 
            field_translation_end = 0x0, 
            merge_underlying_list = 0x0, 
            view_tables = 0x0, 
            belong_to_view = 0x0, 
            referencing_view = 0x0, 
            parent_l = 0x0, 
            security_ctx = 0x0, 
            view_sctx = 0x0, 
            allowed_show = false, 
            next_leaf = 0x0, 
            derived_where_cond = 0x0, 
            check_option = 0x0, 
            replace_filter = 0x0, 
            select_stmt = {
              str = 0x0, 
              length = 0
            }, 
            md5 = {
              str = 0x0, 
              length = 0
            }, 
            source = {
              str = 0x0, 
              length = 0
            }, 
            view_db = {
              str = 0x0, 
              length = 0
            }, 
            view_name = {
              str = 0x0, 
              length = 0
            }, 
            timestamp = {
              str = 0x0, 
              length = 0
            }, 
            definer = {
              user = {
                str = 0x0, 
                length = 0
              }, 
              host = {
                str = 0x0, 
                length = 0
              }, 
              plugin = {
                str = 0x0, 
                length = 0
              }, 
              auth = {
                str = 0x0, 
                length = 0
              }, 
              uses_identified_by_clause = false, 
              uses_identified_with_clause = false, 
              uses_authentication_string_clause = false, 
              uses_identified_by_password_clause = false, 
              alter_status = {
                update_password_expired_column = false, 
                use_default_password_lifetime = false, 
                expire_after_days = 0, 
                update_account_locked_column = false, 
                account_locked = false
              }
            }, 
            file_version = 0, 
            updatable_view = 0, 
            algorithm = 0, 
            view_suid = 0, 
            with_check = 0, 
            effective_with_check = 0 '\000', 
            effective_algorithm = VIEW_ALGORITHM_UNDEFINED, 
            grant = {
              grant_table = 0x0, 
              version = 0, 
              privilege = 0, 
              want_privilege = 0, 
              m_internal = {
                m_schema_lookup_done = false, 
                m_schema_access = 0x0, 
                m_table_lookup_done = false, 
                m_table_access = 0x0
              }
            }, 
            engine_data = 0, 
            callback_func = 0x0, 
            lock_type = TL_READ, 
            outer_join = 0, 
            shared = 0, 
            db_length = 5, 
            table_name_length = 14, 
            updatable = true, 
            straight = false, 
            updating = false, 
            force_index = false, 
            ignore_leaves = false, 
            dep_tables = 0, 
            on_expr_dep_tables = 0, 
            nested_join = 0x0, 
            embedding = 0x0, 
            join_list = 0x0, 
            cacheable_table = false, 
            table_in_first_from_clause = false, 
            open_type = OT_TEMPORARY_OR_BASE, 
            contain_auto_increment = false, 
            check_option_processed = false, 
            replace_filter_processed = false, 
            required_type = FRMTYPE_ERROR, 
            timestamp_buffer =               '\000' <repeats 19 times>, 
            prelocking_placeholder = false, 
            open_strategy = TABLE_LIST::OPEN_NORMAL, 
            internal_tmp_table = false, 
            is_alias = false, 
            is_fqtn = false, 
            view_creation_ctx = 0x0, 
            view_client_cs_name = {
              str = 0x0, 
              length = 0
            }, 
            view_connection_cl_name = {
              str = 0x0, 
              length = 0
            }, 
            view_body_utf8 = {
              str = 0x0, 
              length = 0
            }, 
            derived_key_list = {
              <base_list> = {
                <Sql_alloc> = {<No data fields>}, 
                members of base_list: 
                first = 0x0, 
                last = 0x0, 
                elements = 0
              }, <No data fields>}, 
            trg_event_map = 0 '\000', 
            i_s_requested_object = 0, 
            has_db_lookup_value = false, 
            has_table_lookup_value = false, 
            table_open_method = 0, 
            schema_table_state = NOT_PROCESSED, 
            mdl_request = {
              type = MDL_SHARED_READ, 
              duration = MDL_TRANSACTION, 
              next_in_list = 0x0, 
              prev_in_list = 0x0, 
              ticket = 0x7fd14f430f60, 
              key = {
                m_length = 22, 
                m_db_name_length = 5, 
                m_ptr =                   "\003mysql\000time_zone_name", '\000' <repeats 365 times>, 
                static m_namespace_to_wait_state_name =                   {[0] = {
                    m_key = 100, 
                    m_name = 0x19adfc6 "Waiting for global read lock", 
                    m_flags = 0
                  },
                  [1] = {
                    m_key = 101, 
                    m_name = 0x19adfe8 "Waiting for tablespace metadata lock", 
                    m_flags = 0
                  },
                  [2] = {
                    m_key = 102, 
                    m_name = 0x19ae010 "Waiting for schema metadata lock", 
                    m_flags = 0
                  },
                  [3] = {
                    m_key = 103, 
                    m_name = 0x19ae038 "Waiting for table metadata lock", 
                    m_flags = 0
                  },
                  [4] = {
                    m_key = 104, 
                    m_name = 0x19ae058 "Waiting for stored function metadata lock", 
                    m_flags = 0
                  },
                  [5] = {
                    m_key = 105, 
                    m_name = 0x19ae088 "Waiting for stored procedure metadata lock", 
                    m_flags = 0
                  },
                  [6] = {
                    m_key = 106, 
                    m_name = 0x19ae0b8 "Waiting for trigger metadata lock", 
                    m_flags = 0
                  },
                  [7] = {
                    m_key = 107, 
                    m_name = 0x19ae0e0 "Waiting for event metadata lock", 
                    m_flags = 0
                  },
                  [8] = {
                    m_key = 108, 
                    m_name = 0x19ae100 "Waiting for commit lock", 
                    m_flags = 0
                  },
                  [9] = {
                    m_key = 109, 
                    m_name = 0x19ae118 "User lock", 
                    m_flags = 0
                  }}
              }, 
              m_src_file = 0x1ae3c28 "/bzr/mysql-5.7.6-m16_dbg/sql/table.cc", 
              m_src_line = 6709
            }, 
            view_no_explain = false, 
            partition_names = 0x0, 
            m_join_cond_optim = 0x0, 
            cond_equal = 0x0, 
            optimized_away = false, 
            derived_keys_ready = false, 
            m_table_ref_type = TABLE_REF_BASE_TABLE, 
            m_table_ref_version = 8
          },
          [1] = {
            next_local = 0x7fd1796a6a10, 
            next_global = 0x7fd1796a6a10, 
            prev_global = 0x7fd1796a5f28, 
            db = 0x1ae9697 "mysql", 
            table_name = 0x1ae9f37 "time_zone", 
            alias = 0x1ae9f37 "time_zone", 
            target_tablespace_name = {
              str = 0x0, 
              length = 0
            }, 
            schema_table_name = 0x0, 
            option = 0x0, 
            m_tableno = 0, 
            m_map = 0, 
            m_join_cond = 0x0, 
            sj_on_expr = 0x0, 
            sj_inner_tables = 0, 
            natural_join = 0x0, 
            is_natural_join = false, 
            join_using_fields = 0x0, 
            join_columns = 0x0, 
            is_join_columns_complete = false, 
            next_name_resolution_table = 0x0, 
            index_hints = 0x0, 
            table = 0x7fd14f4cc810, 
            table_id = {
              static TABLE_ID_MAX = 281474976710655, 
              m_id = 0
            }, 
            derived_result = 0x0, 
            correspondent_table = 0x0, 
            derived = 0x0, 
            schema_table = 0x0, 
            schema_select_lex = 0x0, 
            schema_table_reformed = false, 
            schema_table_param = 0x0, 
            select_lex = 0x0, 
            view = 0x0, 
            field_translation = 0x0, 
            field_translation_end = 0x0, 
            merge_underlying_list = 0x0, 
            view_tables = 0x0, 
            belong_to_view = 0x0, 
            referencing_view = 0x0, 
            parent_l = 0x0, 
            security_ctx = 0x0, 
            view_sctx = 0x0, 
            allowed_show = false, 
            next_leaf = 0x0, 
            derived_where_cond = 0x0, 
            check_option = 0x0, 
            replace_filter = 0x0, 
            select_stmt = {
              str = 0x0, 
              length = 0
            }, 
            md5 = {
              str = 0x0, 
              length = 0
            }, 
            source = {
              str = 0x0, 
              length = 0
            }, 
            view_db = {
              str = 0x0, 
              length = 0
            }, 
            view_name = {
              str = 0x0, 
              length = 0
            }, 
            timestamp = {
              str = 0x0, 
              length = 0
            }, 
            definer = {
              user = {
                str = 0x0, 
                length = 0
              }, 
              host = {
                str = 0x0, 
                length = 0
              }, 
              plugin = {
                str = 0x0, 
                length = 0
              }, 
              auth = {
                str = 0x0, 
                length = 0
              }, 
              uses_identified_by_clause = false, 
              uses_identified_with_clause = false, 
              uses_authentication_string_clause = false, 
              uses_identified_by_password_clause = false, 
              alter_status = {
                update_password_expired_column = false, 
                use_default_password_lifetime = false, 
                expire_after_days = 0, 
                update_account_locked_column = false, 
                account_locked = false
              }
            }, 
            file_version = 0, 
            updatable_view = 0, 
            algorithm = 0, 
            view_suid = 0, 
            with_check = 0, 
            effective_with_check = 0 '\000', 
            effective_algorithm = VIEW_ALGORITHM_UNDEFINED, 
            grant = {
              grant_table = 0x0, 
              version = 0, 
              privilege = 0, 
              want_privilege = 0, 
              m_internal = {
                m_schema_lookup_done = false, 
                m_schema_access = 0x0, 
                m_table_lookup_done = false, 
                m_table_access = 0x0
              }
            }, 
            engine_data = 0, 
            callback_func = 0x0, 
            lock_type = TL_READ, 
            outer_join = 0, 
            shared = 0, 
            db_length = 5, 
            table_name_length = 9, 
            updatable = true, 
            straight = false, 
            updating = false, 
            force_index = false, 
            ignore_leaves = false, 
            dep_tables = 0, 
            on_expr_dep_tables = 0, 
            nested_join = 0x0, 
            embedding = 0x0, 
            join_list = 0x0, 
            cacheable_table = false, 
            table_in_first_from_clause = false, 
            open_type = OT_TEMPORARY_OR_BASE, 
            contain_auto_increment = false, 
            check_option_processed = false, 
            replace_filter_processed = false, 
            required_type = FRMTYPE_ERROR, 
            timestamp_buffer =               '\000' <repeats 19 times>, 
            prelocking_placeholder = false, 
            open_strategy = TABLE_LIST::OPEN_NORMAL, 
            internal_tmp_table = false, 
            is_alias = false, 
            is_fqtn = false, 
            view_creation_ctx = 0x0, 
            view_client_cs_name = {
              str = 0x0, 
              length = 0
            }, 
            view_connection_cl_name = {
              str = 0x0, 
              length = 0
            }, 
            view_body_utf8 = {
              str = 0x0, 
              length = 0
            }, 
            derived_key_list = {
              <base_list> = {
                <Sql_alloc> = {<No data fields>}, 
                members of base_list: 
                first = 0x0, 
                last = 0x0, 
                elements = 0
              }, <No data fields>}, 
            trg_event_map = 0 '\000', 
            i_s_requested_object = 0, 
            has_db_lookup_value = false, 
            has_table_lookup_value = false, 
            table_open_method = 0, 
            schema_table_state = NOT_PROCESSED, 
            mdl_request = {
              type = MDL_SHARED_READ, 
              duration = MDL_TRANSACTION, 
              next_in_list = 0x0, 
              prev_in_list = 0x0, 
              ticket = 0x7fd14f430ec0, 
              key = {
                m_length = 17, 
                m_db_name_length = 5, 
                m_ptr =                   "\003mysql\000time_zone", '\000' <repeats 370 times>, 
                static m_namespace_to_wait_state_name =                   {[0] = {
                    m_key = 100, 
                    m_name = 0x19adfc6 "Waiting for global read lock", 
                    m_flags = 0
                  },
                  [1] = {
                    m_key = 101, 
                    m_name = 0x19adfe8 "Waiting for tablespace metadata lock", 
                    m_flags = 0
                  },
                  [2] = {
                    m_key = 102, 
                    m_name = 0x19ae010 "Waiting for schema metadata lock", 
                    m_flags = 0
                  },
                  [3] = {
                    m_key = 103, 
                    m_name = 0x19ae038 "Waiting for table metadata lock", 
                    m_flags = 0
                  },
                  [4] = {
                    m_key = 104, 
                    m_name = 0x19ae058 "Waiting for stored function metadata lock", 
                    m_flags = 0
                  },
                  [5] = {
                    m_key = 105, 
                    m_name = 0x19ae088 "Waiting for stored procedure metadata lock", 
                    m_flags = 0
                  },
                  [6] = {
                    m_key = 106, 
                    m_name = 0x19ae0b8 "Waiting for trigger metadata lock", 
                    m_flags = 0
                  },
                  [7] = {
                    m_key = 107, 
                    m_name = 0x19ae0e0 "Waiting for event metadata lock", 
                    m_flags = 0
                  },
                  [8] = {
                    m_key = 108, 
                    m_name = 0x19ae100 "Waiting for commit lock", 
                    m_flags = 0
                  },
                  [9] = {
                    m_key = 109, 
                    m_name = 0x19ae118 "User lock", 
                    m_flags = 0
                  }}
              }, 
              m_src_file = 0x1ae3c28 "/bzr/mysql-5.7.6-m16_dbg/sql/table.cc", 
              m_src_line = 6709
            }, 
            view_no_explain = false, 
            partition_names = 0x0, 
            m_join_cond_optim = 0x0, 
            cond_equal = 0x0, 
            optimized_away = false, 
            derived_keys_ready = false, 
            m_table_ref_type = TABLE_REF_BASE_TABLE, 
            m_table_ref_version = 9
          },
          [2] = {
            next_local = 0x7fd1796a6f88, 
            next_global = 0x7fd1796a6f88, 
            prev_global = 0x7fd1796a64a0, 
            db = 0x1ae9697 "mysql", 
            table_name = 0x1ae9f41 "time_zone_transition_type", 
            alias = 0x1ae9f41 "time_zone_transition_type", 
            target_tablespace_name = {
              str = 0x0, 
              length = 0
            }, 
            schema_table_name = 0x0, 
            option = 0x0, 
            m_tableno = 0, 
            m_map = 0, 
            m_join_cond = 0x0, 
            sj_on_expr = 0x0, 
            sj_inner_tables = 0, 
            natural_join = 0x0, 
            is_natural_join = false, 
            join_using_fields = 0x0, 
            join_columns = 0x0, 
            is_join_columns_complete = false, 
            next_name_resolution_table = 0x0, 
            index_hints = 0x0, 
            table = 0x7fd14f4c6e10, 
            table_id = {
              static TABLE_ID_MAX = 281474976710655, 
              m_id = 0
            }, 
            derived_result = 0x0, 
            correspondent_table = 0x0, 
            derived = 0x0, 
            schema_table = 0x0, 
            schema_select_lex = 0x0, 
            schema_table_reformed = false, 
            schema_table_param = 0x0, 
            select_lex = 0x0, 
            view = 0x0, 
            field_translation = 0x0, 
            field_translation_end = 0x0, 
            merge_underlying_list = 0x0, 
            view_tables = 0x0, 
            belong_to_view = 0x0, 
            referencing_view = 0x0, 
            parent_l = 0x0, 
            security_ctx = 0x0, 
            view_sctx = 0x0, 
            allowed_show = false, 
            next_leaf = 0x0, 
            derived_where_cond = 0x0, 
            check_option = 0x0, 
            replace_filter = 0x0, 
            select_stmt = {
              str = 0x0, 
              length = 0
            }, 
            md5 = {
              str = 0x0, 
              length = 0
            }, 
            source = {
              str = 0x0, 
              length = 0
            }, 
            view_db = {
              str = 0x0, 
              length = 0
            }, 
            view_name = {
              str = 0x0, 
              length = 0
            }, 
            timestamp = {
              str = 0x0, 
              length = 0
            }, 
            definer = {
              user = {
                str = 0x0, 
                length = 0
              }, 
              host = {
                str = 0x0, 
                length = 0
              }, 
              plugin = {
                str = 0x0, 
                length = 0
              }, 
              auth = {
                str = 0x0, 
                length = 0
              }, 
              uses_identified_by_clause = false, 
              uses_identified_with_clause = false, 
              uses_authentication_string_clause = false, 
              uses_identified_by_password_clause = false, 
              alter_status = {
                update_password_expired_column = false, 
                use_default_password_lifetime = false, 
                expire_after_days = 0, 
                update_account_locked_column = false, 
                account_locked = false
              }
            }, 
            file_version = 0, 
            updatable_view = 0, 
            algorithm = 0, 
            view_suid = 0, 
            with_check = 0, 
            effective_with_check = 0 '\000', 
            effective_algorithm = VIEW_ALGORITHM_UNDEFINED, 
            grant = {
              grant_table = 0x0, 
              version = 0, 
              privilege = 0, 
              want_privilege = 0, 
              m_internal = {
                m_schema_lookup_done = false, 
                m_schema_access = 0x0, 
                m_table_lookup_done = false, 
                m_table_access = 0x0
              }
            }, 
            engine_data = 0, 
            callback_func = 0x0, 
            lock_type = TL_READ, 
            outer_join = 0, 
            shared = 0, 
            db_length = 5, 
            table_name_length = 25, 
            updatable = true, 
            straight = false, 
            updating = false, 
            force_index = false, 
            ignore_leaves = false, 
            dep_tables = 0, 
            on_expr_dep_tables = 0, 
            nested_join = 0x0, 
            embedding = 0x0, 
            join_list = 0x0, 
            cacheable_table = false, 
            table_in_first_from_clause = false, 
            open_type = OT_TEMPORARY_OR_BASE, 
            contain_auto_increment = false, 
            check_option_processed = false, 
            replace_filter_processed = false, 
            required_type = FRMTYPE_ERROR, 
            timestamp_buffer =               '\000' <repeats 19 times>, 
            prelocking_placeholder = false, 
            open_strategy = TABLE_LIST::OPEN_NORMAL, 
            internal_tmp_table = false, 
            is_alias = false, 
            is_fqtn = false, 
            view_creation_ctx = 0x0, 
            view_client_cs_name = {
              str = 0x0, 
              length = 0
            }, 
            view_connection_cl_name = {
              str = 0x0, 
              length = 0
            }, 
            view_body_utf8 = {
              str = 0x0, 
              length = 0
            }, 
            derived_key_list = {
              <base_list> = {
                <Sql_alloc> = {<No data fields>}, 
                members of base_list: 
                first = 0x0, 
                last = 0x0, 
                elements = 0
              }, <No data fields>}, 
            trg_event_map = 0 '\000', 
            i_s_requested_object = 0, 
            has_db_lookup_value = false, 
            has_table_lookup_value = false, 
            table_open_method = 0, 
            schema_table_state = NOT_PROCESSED, 
            mdl_request = {
              type = MDL_SHARED_READ, 
              duration = MDL_TRANSACTION, 
              next_in_list = 0x0, 
              prev_in_list = 0x0, 
              ticket = 0x7fd14f653060, 
              key = {
                m_length = 33, 
                m_db_name_length = 5, 
                m_ptr =                   "\003mysql\000time_zone_transition_type", '\000' <repeats 354 times>, 
                static m_namespace_to_wait_state_name =                   {[0] = {
                    m_key = 100, 
                    m_name = 0x19adfc6 "Waiting for global read lock", 
                    m_flags = 0
                  },
                  [1] = {
                    m_key = 101, 
                    m_name = 0x19adfe8 "Waiting for tablespace metadata lock", 
                    m_flags = 0
                  },
                  [2] = {
                    m_key = 102, 
                    m_name = 0x19ae010 "Waiting for schema metadata lock", 
                    m_flags = 0
                  },
                  [3] = {
                    m_key = 103, 
                    m_name = 0x19ae038 "Waiting for table metadata lock", 
                    m_flags = 0
                  },
                  [4] = {
                    m_key = 104, 
                    m_name = 0x19ae058 "Waiting for stored function metadata lock", 
                    m_flags = 0
                  },
                  [5] = {
                    m_key = 105, 
                    m_name = 0x19ae088 "Waiting for stored procedure metadata lock", 
                    m_flags = 0
                  },
                  [6] = {
                    m_key = 106, 
                    m_name = 0x19ae0b8 "Waiting for trigger metadata lock", 
                    m_flags = 0
                  },
                  [7] = {
                    m_key = 107, 
                    m_name = 0x19ae0e0 "Waiting for event metadata lock", 
                    m_flags = 0
                  },
                  [8] = {
                    m_key = 108, 
                    m_name = 0x19ae100 "Waiting for commit lock", 
                    m_flags = 0
                  },
                  [9] = {
                    m_key = 109, 
                    m_name = 0x19ae118 "User lock", 
                    m_flags = 0
                  }}
              }, 
              m_src_file = 0x1ae3c28 "/bzr/mysql-5.7.6-m16_dbg/sql/table.cc", 
              m_src_line = 6709
            }, 
            view_no_explain = false, 
            partition_names = 0x0, 
            m_join_cond_optim = 0x0, 
            cond_equal = 0x0, 
            optimized_away = false, 
            derived_keys_ready = false, 
            m_table_ref_type = TABLE_REF_BASE_TABLE, 
            m_table_ref_version = 10
          },
          [3] = {
            next_local = 0x0, 
            next_global = 0x0, 
            prev_global = 0x7fd1796a6a18, 
            db = 0x1ae9697 "mysql", 
            table_name = 0x1ae9f5b "time_zone_transition", 
            alias = 0x1ae9f5b "time_zone_transition", 
            target_tablespace_name = {
              str = 0x0, 
              length = 0
            }, 
            schema_table_name = 0x0, 
            option = 0x0, 
            m_tableno = 0, 
            m_map = 0, 
            m_join_cond = 0x0, 
            sj_on_expr = 0x0, 
            sj_inner_tables = 0, 
            natural_join = 0x0, 
            is_natural_join = false, 
            join_using_fields = 0x0, 
            join_columns = 0x0, 
            is_join_columns_complete = false, 
            next_name_resolution_table = 0x0, 
            index_hints = 0x0, 
            table = 0x7fd14f4d0410, 
            table_id = {
              static TABLE_ID_MAX = 281474976710655, 
              m_id = 0
            }, 
            derived_result = 0x0, 
            correspondent_table = 0x0, 
            derived = 0x0, 
            schema_table = 0x0, 
            schema_select_lex = 0x0, 
            schema_table_reformed = false, 
            schema_table_param = 0x0, 
            select_lex = 0x0, 
            view = 0x0, 
            field_translation = 0x0, 
            field_translation_end = 0x0, 
            merge_underlying_list = 0x0, 
            view_tables = 0x0, 
            belong_to_view = 0x0, 
            referencing_view = 0x0, 
            parent_l = 0x0, 
            security_ctx = 0x0, 
            view_sctx = 0x0, 
            allowed_show = false, 
            next_leaf = 0x0, 
            derived_where_cond = 0x0, 
            check_option = 0x0, 
            replace_filter = 0x0, 
            select_stmt = {
              str = 0x0, 
              length = 0
            }, 
            md5 = {
              str = 0x0, 
              length = 0
            }, 
            source = {
              str = 0x0, 
              length = 0
            }, 
            view_db = {
              str = 0x0, 
              length = 0
            }, 
            view_name = {
              str = 0x0, 
              length = 0
            }, 
            timestamp = {
              str = 0x0, 
              length = 0
            }, 
            definer = {
              user = {
                str = 0x0, 
                length = 0
              }, 
              host = {
                str = 0x0, 
                length = 0
              }, 
              plugin = {
                str = 0x0, 
                length = 0
              }, 
              auth = {
                str = 0x0, 
                length = 0
              }, 
              uses_identified_by_clause = false, 
              uses_identified_with_clause = false, 
              uses_authentication_string_clause = false, 
              uses_identified_by_password_clause = false, 
              alter_status = {
                update_password_expired_column = false, 
                use_default_password_lifetime = false, 
                expire_after_days = 0, 
                update_account_locked_column = false, 
                account_locked = false
              }
            }, 
            file_version = 0, 
            updatable_view = 0, 
            algorithm = 0, 
            view_suid = 0, 
            with_check = 0, 
            effective_with_check = 0 '\000', 
            effective_algorithm = VIEW_ALGORITHM_UNDEFINED, 
            grant = {
              grant_table = 0x0, 
              version = 0, 
              privilege = 0, 
              want_privilege = 0, 
              m_internal = {
                m_schema_lookup_done = false, 
                m_schema_access = 0x0, 
                m_table_lookup_done = false, 
                m_table_access = 0x0
              }
            }, 
            engine_data = 0, 
            callback_func = 0x0, 
            lock_type = TL_READ, 
            outer_join = 0, 
            shared = 0, 
            db_length = 5, 
            table_name_length = 20, 
            updatable = true, 
            straight = false, 
            updating = false, 
            force_index = false, 
            ignore_leaves = false, 
            dep_tables = 0, 
            on_expr_dep_tables = 0, 
            nested_join = 0x0, 
            embedding = 0x0, 
            join_list = 0x0, 
            cacheable_table = false, 
            table_in_first_from_clause = false, 
            open_type = OT_TEMPORARY_OR_BASE, 
            contain_auto_increment = false, 
            check_option_processed = false, 
            replace_filter_processed = false, 
            required_type = FRMTYPE_ERROR, 
            timestamp_buffer =               '\000' <repeats 19 times>, 
            prelocking_placeholder = false, 
            open_strategy = TABLE_LIST::OPEN_NORMAL, 
            internal_tmp_table = false, 
            is_alias = false, 
            is_fqtn = false, 
            view_creation_ctx = 0x0, 
            view_client_cs_name = {
              str = 0x0, 
              length = 0
            }, 
            view_connection_cl_name = {
              str = 0x0, 
              length = 0
            }, 
            view_body_utf8 = {
              str = 0x0, 
              length = 0
            }, 
            derived_key_list = {
              <base_list> = {
                <Sql_alloc> = {<No data fields>}, 
                members of base_list: 
                first = 0x0, 
                last = 0x0, 
                elements = 0
              }, <No data fields>}, 
            trg_event_map = 0 '\000', 
            i_s_requested_object = 0, 
            has_db_lookup_value = false, 
            has_table_lookup_value = false, 
            table_open_method = 0, 
            schema_table_state = NOT_PROCESSED, 
            mdl_request = {
              type = MDL_SHARED_READ, 
              duration = MDL_TRANSACTION, 
              next_in_list = 0x0, 
              prev_in_list = 0x0, 
              ticket = 0x7fd14f4301f0, 
              key = {
                m_length = 28, 
                m_db_name_length = 5, 
                m_ptr =                   "\003mysql\000time_zone_transition", '\000' <repeats 359 times>, 
                static m_namespace_to_wait_state_name =                   {[0] = {
                    m_key = 100, 
                    m_name = 0x19adfc6 "Waiting for global read lock", 
                    m_flags = 0
                  },
                  [1] = {
                    m_key = 101, 
                    m_name = 0x19adfe8 "Waiting for tablespace metadata lock", 
                    m_flags = 0
                  },
                  [2] = {
                    m_key = 102, 
                    m_name = 0x19ae010 "Waiting for schema metadata lock", 
                    m_flags = 0
                  },
                  [3] = {
                    m_key = 103, 
                    m_name = 0x19ae038 "Waiting for table metadata lock", 
                    m_flags = 0
                  },
                  [4] = {
                    m_key = 104, 
                    m_name = 0x19ae058 "Waiting for stored function metadata lock", 
                    m_flags = 0
                  },
                  [5] = {
                    m_key = 105, 
                    m_name = 0x19ae088 "Waiting for stored procedure metadata lock", 
                    m_flags = 0
                  },
                  [6] = {
                    m_key = 106, 
                    m_name = 0x19ae0b8 "Waiting for trigger metadata lock", 
                    m_flags = 0
                  },
                  [7] = {
                    m_key = 107, 
                    m_name = 0x19ae0e0 "Waiting for event metadata lock", 
                    m_flags = 0
                  },
                  [8] = {
                    m_key = 108, 
                    m_name = 0x19ae100 "Waiting for commit lock", 
                    m_flags = 0
                  },
                  [9] = {
                    m_key = 109, 
                    m_name = 0x19ae118 "User lock", 
                    m_flags = 0
                  }}
              }, 
              m_src_file = 0x1ae3c28 "/bzr/mysql-5.7.6-m16_dbg/sql/table.cc", 
              m_src_line = 6709
            }, 
            view_no_explain = false, 
            partition_names = 0x0, 
            m_join_cond_optim = 0x0, 
            cond_equal = 0x0, 
            optimized_away = false, 
            derived_keys_ready = false, 
            m_table_ref_type = TABLE_REF_BASE_TABLE, 
            m_table_ref_version = 11
          }}
        tmp_tzname = 0x0
        result_tz = 0x0
        offset = 20593039
        _db_stack_frame_ = {
          func = 0x19b91e2 "set_var::check", 
          file = 0x19b8f70 "/bzr/mysql-5.7.6-m16_dbg/sql/set_var.cc", 
          level = 2147483655, 
          prev = 0x7fd1796a7b60
        }
#10 0x000000000117cc10 in Sys_var_tz::do_check (this=0x26525c0 <Sys_time_zone>, thd=0x7fd14f41a000, var=0x7fd14f42cb08) at /bzr/mysql-5.7.6-m16_dbg/sql/sys_vars.h:2003
        buff =           '\000' <repeats 16 times>, "\340yjy\321\177\000\000\340yjy\321\177\000\000\340vjy\321\177\000\000\035!\374\000\000\000\000\000\320ujy\321\177\000\000\217\071:\001\000\000\000\000\340yjy\321\177\000\000\230\240AO\r\000\000\000\360ujy\321\177\000\000\217\071:\001\000\000\000\000璺\001\000\000\000\000\217\071:\001\000\000\000\000\020vjy\321\177\000\000\064C:\001\r\000\000\000 vjy\321\177\000\000\064C:\001\000\000\000\000@vjy\321\177\000\000\225C:\001\000\000\000\000Pvjy\321\177\000\000\200\340@O\321\177\000\000`vjy\321\177\000\000f\254\211\001\000\000\000", <incomplete sequence \340>
        str = {
          m_ptr = 0x7fd1796a7590 "", 
          m_length = 193, 
          m_charset = 0x25bf920 <my_charset_latin1>, 
          m_alloced_length = 193, 
          m_is_alloced = false
        }
        res = 0x7fd14f42c9c0
#11 0x0000000000ff03c6 in sys_var::check (this=0x26525c0 <Sys_time_zone>, thd=0x7fd14f41a000, var=0x7fd14f42cb08) at /bzr/mysql-5.7.6-m16_dbg/sql/set_var.cc:230
No locals.
#12 0x0000000000ff14fb in set_var::check (this=0x7fd14f42cb08, thd=0x7fd14f41a000) at /bzr/mysql-5.7.6-m16_dbg/sql/set_var.cc:732
        _db_stack_frame_ = {
          func = 0x19b91d0 "sql_set_variables", 
          file = 0x19b8f70 "/bzr/mysql-5.7.6-m16_dbg/sql/set_var.cc", 
          level = 2147483654, 
          prev = 0x7fd1796a7be0
        }
        ret = 16721223
#13 0x0000000000ff0fb3 in sql_set_variables (thd=0x7fd14f41a000, var_list=0x7fd14f41c430) at /bzr/mysql-5.7.6-m16_dbg/sql/set_var.cc:644
        error = 0
        it = {
          <base_list_iterator> = {
            list = 0x7fd14f41c430, 
            el = 0x7fd14f42cb48, 
            prev = 0x0, 
            current = 0x0
          }, <No data fields>}
        _db_stack_frame_ = {
          func = 0x1ab521a "mysql_execute_command", 
          file = 0x1ab4ca0 "/bzr/mysql-5.7.6-m16_dbg/sql/sql_parse.cc", 
          level = 2147483653, 
          prev = 0x7fd1796a7c40
        }
        var = 0x7fd14f42cb08
#14 0x00000000010a5e64 in mysql_execute_command (thd=0x7fd14f41a000) at /bzr/mysql-5.7.6-m16_dbg/sql/sql_parse.cc:3315
        lex_var_list = 0x7fd14f41c430
        res = 0
        lex = 0x7fd14f41c068
        __PRETTY_FUNCTION__ =           "int mysql_execute_command(THD*)"
        _db_stack_frame_ = {
          func = 0x1ab5c0e "mysql_parse", 
          file = 0x1ab4ca0 "/bzr/mysql-5.7.6-m16_dbg/sql/sql_parse.cc", 
          level = 2147483652, 
          prev = 0x7fd1796a8b80
        }
        trace_command = {
          <Opt_trace_struct> = {
            started = false, 
            requires_key = 124, 
            has_disabled_I_S = 106, 
            empty = 121, 
            stmt = 0x13a4395 <my_thread_var_dbug+36>, 
            saved_key = 0x7fd1796a7cb0 "\340\340@O\321\177", 
            previous_key =               "\200\340@O\321\177\000\000\300|jy\321\177\000\000f\254\211\001\000\000\000", <incomplete sequence \340>
          }, <No data fields>}
        trace_command_steps = {
          <Opt_trace_struct> = {
            started = false, 
            requires_key = 124, 
            has_disabled_I_S = 106, 
            empty = 121, 
            stmt = 0x189d8e6 <_db_enabled_+13>, 
            saved_key = 0x7fd14f410080 "Í`,\377\177", 
            previous_key =               "\004\000\000\000\v\000\000\000`\213jy\321\177\000\000\325\340\060\001\000\000\000\000"
          }, <No data fields>}
        ots = {
          ctx = 0x7fd14f41c048, 
          error = false
        }
        __func__ =           "mysql_execute_command"
        select_lex = 0x7fd14f42c050
        first_table = 0x0
        all_tables = 0x0
        unit = 0x7fd14f42c328
#15 0x00000000010aae7a in mysql_parse (thd=0x7fd14f41a000, parser_state=0x7fd1796a8e00) at /bzr/mysql-5.7.6-m16_dbg/sql/sql_parse.cc:5129
        lex = 0x7fd14f41c068
        err = false
        found_semicolon = 0x0
        error = 0
        _db_stack_frame_ = {
          func = 0x1ab4ea6 "dispatch_command", 
          file = 0x1ab4ca0 "/bzr/mysql-5.7.6-m16_dbg/sql/sql_parse.cc", 
          level = 2147483651, 
          prev = 0x7fd1796a8ce0
        }
        __PRETTY_FUNCTION__ =           "void mysql_parse(THD*, Parser_state*)"
        __func__ =           "mysql_parse"
#16 0x00000000010a0bd4 in dispatch_command (command=COM_QUERY, thd=0x7fd14f41a000, packet=0x7fd14f446011 "SET @@time_zone = '6';", packet_length=22) at /bzr/mysql-5.7.6-m16_dbg/sql/sql_parse.cc:1249
        packet_end = 0x7fd14f42c035 ""
        parser_state = {
          m_input = {
            m_compute_digest = false
          }, 
          m_lip = {
            m_thd = 0x7fd14f41a000, 
            yylineno = 1, 
            yytoklen = 1, 
            yylval = 0x7fd1796a4a90, 
            lookahead_token = -1, 
            lookahead_yylval = 0x0, 
            query_charset = 0x25ba580 <compiled_charsets+1344>, 
            m_ptr = 0x7fd14f42c036 "\217\217SET @@time_zone = '6'", 
            m_tok_start = 0x7fd14f42c036 "\217\217SET @@time_zone = '6'", 
            m_tok_end = 0x7fd14f42c036 "\217\217SET @@time_zone = '6'", 
            m_end_of_query = 0x7fd14f42c035 "", 
            m_buf = 0x7fd14f42c020 "SET @@time_zone = '6'", 
            m_buf_length = 21, 
            m_echo = true, 
            m_echo_saved = false, 
            m_cpp_buf = 0x7fd14f42c038 "SET @@time_zone = '6'", 
            m_cpp_ptr = 0x7fd14f42c04d "", 
            m_cpp_tok_start = 0x7fd14f42c04d "", 
            m_cpp_tok_end = 0x7fd14f42c04d "", 
            m_body_utf8 = 0x0, 
            m_body_utf8_ptr = 0x0, 
            m_cpp_utf8_processed_ptr = 0x0, 
            next_state = MY_LEX_END, 
            found_semicolon = 0x0, 
            tok_bitmap = 55 '7', 
            ignore_space = false, 
            stmt_prepare_mode = false, 
            multi_statements = true, 
            in_comment = NO_COMMENT, 
            in_comment_saved = NO_COMMENT, 
            m_cpp_text_start = 0x7fd14f42c04b "6'", 
            m_cpp_text_end = 0x7fd14f42c04c "'", 
            m_underscore_cs = 0x0, 
            m_digest = 0x0
          }, 
          m_yacc = {
            yacc_yyss = 0x0, 
            yacc_yyvs = 0x0, 
            yacc_yyls = 0x0, 
            m_lock_type = TL_READ_DEFAULT, 
            m_mdl_type = MDL_SHARED_READ, 
            m_ha_rkey_mode = HA_READ_KEY_EXACT
          }, 
          m_digest_psi = 0x7fd14f41bbe0, 
          m_comment = false
        }
        net = 0x7fd14f41a2a0
        __PRETTY_FUNCTION__ =           "bool dispatch_command(enum_server_command, THD*, char*, size_t)"
        __func__ =           "dispatch_command"
        error = false
        thd_manager = 0x7fd170ff4000
        _db_stack_frame_ = {
          func = 0x1ab4d60 "do_command", 
          file = 0x1ab4ca0 "/bzr/mysql-5.7.6-m16_dbg/sql/sql_parse.cc", 
          level = 2147483650, 
          prev = 0x7fd1796a9dd0
        }
#17 0x000000000109f925 in do_command (thd=0x7fd14f41a000) at /bzr/mysql-5.7.6-m16_dbg/sql/sql_parse.cc:835
        return_value = false
        packet = 0x7fd14f446010 "\003SET @@time_zone = '6';"
        packet_length = 23
        net = 0x7fd14f41a2a0
        command = COM_QUERY
        __PRETTY_FUNCTION__ =           "bool do_command(THD*)"
        _db_stack_frame_ = {
          func = 0x1cbbd95 "?func", 
          file = 0x1cbbd9b "?file", 
          level = 2147483649, 
          prev = 0x0
        }
#18 0x00000000011c2fd9 in handle_connection (arg=0x7fd16fff78c0) at /bzr/mysql-5.7.6-m16_dbg/sql/conn_handler/connection_handler_per_thread.cc:298
        thd = 0x7fd14f41a000
        thd_manager = 0x7fd170ff4000
        handler_manager = 0x7fd1747fd2b0
        channel_info = 0x7fd156a83a40
        pthread_reused = true
#19 0x00000000013d2299 in pfs_spawn_thread (arg=0x7fd170fb2ed0) at /bzr/mysql-5.7.6-m16_dbg/storage/perfschema/pfs.cc:2147
        typed_arg = 0x7fd170fb2ed0
        user_arg = 0x7fd16fff78c0
        pfs = 0x7fd172c1cc00
        user_start_routine = 0x11c2e1e <handle_connection(void*)>
        klass = 0x7fd1770683c0
#20 0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#21 0x00007fd177db71ad in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 1 (Thread 0x7fd179747780 (LWP 23865)):
+bt full
#0  0x00007fd1790eef37 in pthread_join () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x00000000013af12d in my_thread_join (thread=0x262b6c0 <signal_thread_id>, value_ptr=0x0) at /bzr/mysql-5.7.6-m16_dbg/mysys/my_thread.c:124
No locals.
#2  0x0000000000ba7ee0 in mysqld_main (argc=32, argv=0x7fd1770222d8) at /bzr/mysql-5.7.6-m16_dbg/sql/mysqld.cc:5060
        ho_error = 0
        retval = 0
        __PRETTY_FUNCTION__ =           "int mysqld_main(int, char**)"
        ret = 0
        requested_open_files = 5000
        guardize = 4096
#3  0x0000000000b9eed0 in main (argc=32, argv=0x7fff2c607e18) at /bzr/mysql-5.7.6-m16_dbg/sql/main.cc:25
No locals.
+quit
A debugging session is active.

	Inferior 1 [process 23865] will be detached.

Quit anyway? (y or n) Detaching from program: /sda/MS-mysql-5.7.6-m16-linux-x86_64-debug/bin/mysqld, process 23865