+thread apply all bt

Thread 24 (Thread 0x7fd16d3ff700 (LWP 23872)):
+bt
#0  0x00007fd177cf77ea in sigwaitinfo () from /lib64/libc.so.6
#1  0x00000000013af24f in timer_notify_thread_func (arg=0x7fff2c6073e0) at /bzr/mysql-5.7.6-m16_dbg/mysys/posix_timers.c:77
#2  0x00000000013d2299 in pfs_spawn_thread (arg=0x7fd170fb10d0) at /bzr/mysql-5.7.6-m16_dbg/storage/perfschema/pfs.cc:2147
#3  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 23 (Thread 0x7fd1603ff700 (LWP 23922)):
+bt
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
#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
#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
#3  0x00000000017a948f in fil_aio_wait (segment=0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b0780 <n>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 22 (Thread 0x7fd15fbfe700 (LWP 23923)):
+bt
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
#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
#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
#3  0x00000000017a948f in fil_aio_wait (segment=1) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b0788 <n+8>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 21 (Thread 0x7fd15f3fd700 (LWP 23924)):
+bt
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
#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
#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
#3  0x00000000017a948f in fil_aio_wait (segment=2) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b0790 <n+16>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 20 (Thread 0x7fd15dbff700 (LWP 23925)):
+bt
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
#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
#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
#3  0x00000000017a948f in fil_aio_wait (segment=3) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b0798 <n+24>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 19 (Thread 0x7fd15d3fe700 (LWP 23926)):
+bt
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
#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
#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
#3  0x00000000017a948f in fil_aio_wait (segment=4) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b07a0 <n+32>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 18 (Thread 0x7fd15cbfd700 (LWP 23927)):
+bt
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
#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
#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
#3  0x00000000017a948f in fil_aio_wait (segment=5) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b07a8 <n+40>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 17 (Thread 0x7fd15c3fc700 (LWP 23928)):
+bt
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
#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
#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
#3  0x00000000017a948f in fil_aio_wait (segment=6) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b07b0 <n+48>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 16 (Thread 0x7fd15b3ff700 (LWP 23929)):
+bt
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
#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
#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
#3  0x00000000017a948f in fil_aio_wait (segment=7) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b07b8 <n+56>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 15 (Thread 0x7fd15a3ff700 (LWP 23930)):
+bt
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
#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
#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
#3  0x00000000017a948f in fil_aio_wait (segment=8) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b07c0 <n+64>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x7fd1593ff700 (LWP 23931)):
+bt
#0  0x00007fd178ee4644 in __io_getevents_0_4 () from /lib64/libaio.so.1
#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
#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
#3  0x00000000017a948f in fil_aio_wait (segment=9) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fil/fil0fil.cc:5174
#4  0x00000000016724c7 in io_handler_thread (arg=0x26b07c8 <n+72>) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0start.cc:304
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7fd1583ff700 (LWP 23932)):
+bt
#0  0x00007fd1790f1ab2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#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
#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
#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
#4  0x0000000001742b4e in pc_sleep_if_needed (next_loop_time=1426843182824, sig_count=2) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/buf/buf0flu.cc:2636
#5  0x00000000017439ca in buf_flush_page_cleaner_coordinator (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/buf/buf0flu.cc:3016
#6  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#7  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7fd1563ff700 (LWP 23984)):
+bt
#0  0x00007fd1790f1ab2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#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
#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
#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
#4  0x000000000155ae1d in lock_wait_timeout_thread (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/lock/lock0wait.cc:496
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7fd1553ff700 (LWP 23985)):
+bt
#0  0x00007fd1790f1ab2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#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
#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
#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
#4  0x000000000166cded in srv_error_monitor_thread (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0srv.cc:1684
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7fd154bfe700 (LWP 23986)):
+bt
#0  0x00007fd1790f1ab2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#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
#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
#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
#4  0x000000000166c8e5 in srv_monitor_thread (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0srv.cc:1518
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7fd1543fd700 (LWP 23987)):
+bt
#0  0x00007fd1790f499d in nanosleep () from /lib64/libpthread.so.0
#1  0x0000000001586bf4 in os_thread_sleep (tm=1000000) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0thread.cc:258
#2  0x000000000166e16a in srv_master_sleep () at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0srv.cc:2197
#3  0x000000000166e2c3 in srv_master_thread (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0srv.cc:2244
#4  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#5  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7fd153bfc700 (LWP 23988)):
+bt
#0  0x00007fd1790f1705 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000001586168 in os_event::wait (this=0x7fd16efc6d10) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:160
#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
#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
#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
#5  0x000000000166f1d4 in srv_purge_coordinator_thread (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0srv.cc:2664
#6  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#7  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7fd1527ff700 (LWP 23989)):
+bt
#0  0x00007fd1790f1705 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000001586168 in os_event::wait (this=0x7fd16efc7010) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:160
#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
#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
#4  0x0000000001739bf5 in buf_dump_thread (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/buf/buf0dump.cc:692
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7fd151ffe700 (LWP 23990)):
+bt
#0  0x00007fd1790f1ab2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#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
#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
#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
#4  0x0000000001795e11 in dict_stats_thread (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/dict/dict0stats_bg.cc:363
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7fd1517fd700 (LWP 23991)):
+bt
#0  0x00007fd1790f1ab2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#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
#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
#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
#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
#5  0x00000000017e7e2f in fts_optimize_thread (arg=0x7fd170fb2a50) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/fts/fts0opt.cc:2977
#6  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#7  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7fd150ffc700 (LWP 23992)):
+bt
#0  0x00007fd1790f1705 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000001586168 in os_event::wait (this=0x7fd16efc7210) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0event.cc:160
#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
#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
#4  0x0000000001725a93 in buf_resize_thread (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/buf/buf0buf.cc:2734
#5  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fd17972c700 (LWP 23993)):
+bt
#0  0x00007fd1790f1705 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000013a5cb8 in native_cond_wait (cond=0x7fd170ff5f80, mutex=0x7fd170ff5fe0) at /bzr/mysql-5.7.6-m16_dbg/include/thr_cond.h:126
#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
#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
#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
#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
#6  0x0000000000ba0e9f in close_connections () at /bzr/mysql-5.7.6-m16_dbg/sql/mysqld.cc:1208
#7  0x0000000000ba2b94 in signal_hand (arg=0x0) at /bzr/mysql-5.7.6-m16_dbg/sql/mysqld.cc:2272
#8  0x00000000013d2299 in pfs_spawn_thread (arg=0x7fd170fb2d50) at /bzr/mysql-5.7.6-m16_dbg/storage/perfschema/pfs.cc:2147
#9  0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#10 0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fd1796aa700 (LWP 24095)):
+bt
#0  0x00007fd1790f499d in nanosleep () from /lib64/libpthread.so.0
#1  0x0000000001586bf4 in os_thread_sleep (tm=44772) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/os/os0thread.cc:258
#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
#3  0x00000000016676a7 in srv_conc_enter_innodb (prebuilt=0x7fd14f4bf098) at /bzr/mysql-5.7.6-m16_dbg/storage/innobase/srv/srv0conc.cc:256
#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
#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
#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
#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
#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
#9  0x00000000011a39ba in my_tz_find (thd=0x7fd14f41a000, name=0x7fd14f42c9c0) at /bzr/mysql-5.7.6-m16_dbg/sql/tztime.cc:2355
#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
#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
#12 0x0000000000ff14fb in set_var::check (this=0x7fd14f42cb08, thd=0x7fd14f41a000) at /bzr/mysql-5.7.6-m16_dbg/sql/set_var.cc:732
#13 0x0000000000ff0fb3 in sql_set_variables (thd=0x7fd14f41a000, var_list=0x7fd14f41c430) at /bzr/mysql-5.7.6-m16_dbg/sql/set_var.cc:644
#14 0x00000000010a5e64 in mysql_execute_command (thd=0x7fd14f41a000) at /bzr/mysql-5.7.6-m16_dbg/sql/sql_parse.cc:3315
#15 0x00000000010aae7a in mysql_parse (thd=0x7fd14f41a000, parser_state=0x7fd1796a8e00) at /bzr/mysql-5.7.6-m16_dbg/sql/sql_parse.cc:5129
#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
#17 0x000000000109f925 in do_command (thd=0x7fd14f41a000) at /bzr/mysql-5.7.6-m16_dbg/sql/sql_parse.cc:835
#18 0x00000000011c2fd9 in handle_connection (arg=0x7fd16fff78c0) at /bzr/mysql-5.7.6-m16_dbg/sql/conn_handler/connection_handler_per_thread.cc:298
#19 0x00000000013d2299 in pfs_spawn_thread (arg=0x7fd170fb2ed0) at /bzr/mysql-5.7.6-m16_dbg/storage/perfschema/pfs.cc:2147
#20 0x00007fd1790eddf3 in start_thread () from /lib64/libpthread.so.0
#21 0x00007fd177db71ad in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fd179747780 (LWP 23865)):
+bt
#0  0x00007fd1790eef37 in pthread_join () from /lib64/libpthread.so.0
#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
#2  0x0000000000ba7ee0 in mysqld_main (argc=32, argv=0x7fd1770222d8) at /bzr/mysql-5.7.6-m16_dbg/sql/mysqld.cc:5060
#3  0x0000000000b9eed0 in main (argc=32, argv=0x7fff2c607e18) at /bzr/mysql-5.7.6-m16_dbg/sql/main.cc:25
+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