t@1 (l@1) terminated by signal SEGV (Segmentation Fault)
0xfec75687: __lwp_kill+0x0007:	jae      __lwp_kill+0x15	[ 0xfec75695, .+0xe ]
Current function is my_write_core (optimized)
dbx: warning: can't find file "/export/home2/pb2/build/sb_0-2612415-1291142674.25/mysql-5.5.8/mysys/stacktrace.c" dbx: warning: see `help finding-files'
current thread: t@1
  [1] __lwp_kill(0x1, 0xb), at 0xfec75687 
  [2] _thr_kill(0x1, 0xb, 0x8044758), at 0xfec72dee 
=>[3] my_write_core(sig = ???) (optimized), at 0x820b26d (line ~330) in "stacktrace.c"
  [4] signal_handler(sig = ???) (optimized), at 0x819b06c (line ~8095) in "mysqltest.cc"
  [5] __sighndlr(0xb, 0x0, 0x8044830, 0x819b010), at 0xfec74a4f 
  [6] call_user_handler(0xb, 0x0, 0x8044830), at 0xfec6ae72 
  [7] sigacthandler(0xb, 0x0, 0x8044830, 0xf, 0x0, 0x0), at 0xfec6aff2 
  ---- called from signal handler with signal 11 (SIGSEGV) ------
  [8] fil_space_free(id = ???, x_latched = ???) (optimized), at 0x87caceb (line ~1355) in "fil0fil.c"
  [9] fil_close_all_files() (optimized), at 0x87cb4c9 (line ~1656) in "fil0fil.c"
  [10] logs_empty_and_mark_files_at_shutdown() (optimized), at 0x88600a0 (line ~3250) in "log0log.c"
  [11] innobase_shutdown_for_mysql() (optimized), at 0x8500b11 (line ~1968) in "srv0start.c"
  [12] innobase_end(hton = ???, type = ???) (optimized), at 0x8474bf3 (line ~2533) in "ha_innodb.cc"
  [13] ha_finalize_handlerton(plugin = ???) (optimized), at 0x822f1bb (line ~407) in "handler.cc"
  [14] plugin_deinitialize(plugin = ???, ref_check = ???) (optimized), at 0x831d62f (line ~863) in "sql_plugin.cc"
  [15] reap_plugins() (optimized), at 0x831d970 (line ~938) in "sql_plugin.cc"
  [16] plugin_shutdown() (optimized), at 0x831f3ab (line ~1585) in "sql_plugin.cc"
  [17] clean_up(print_message = ???) (optimized), at 0x82135c2 (line ~1446) in "mysqld.cc"
  [18] end_embedded_server() (optimized), at 0x8218f06 (line ~598) in "lib_sql.cc"
  [19] mysql_server_end() (optimized), at 0x821b572 (line ~203) in "libmysql.c"
  [20] free_used_memory() (optimized), at 0x8191154 (line ~1289) in "mysqltest.cc"
  [21] cleanup_and_exit(exit_code = ???) (optimized), at 0x8191174 (line ~1298) in "mysqltest.cc"
  [22] main(argc = ???, argv = ???) (optimized), at 0x819c853 (line ~8789) in "mysqltest.cc"
current thread: t@1
  [1] __lwp_kill(0x1, 0xb), at 0xfec75687 
  [2] _thr_kill(0x1, 0xb, 0x8044758), at 0xfec72dee 
=>[3] my_write_core(sig = ???) (optimized), at 0x820b26d (line ~330) in "stacktrace.c"
  [4] signal_handler(sig = ???) (optimized), at 0x819b06c (line ~8095) in "mysqltest.cc"
  [5] __sighndlr(0xb, 0x0, 0x8044830, 0x819b010), at 0xfec74a4f 
  [6] call_user_handler(0xb, 0x0, 0x8044830), at 0xfec6ae72 
  [7] sigacthandler(0xb, 0x0, 0x8044830, 0xf, 0x0, 0x0), at 0xfec6aff2 
  ---- called from signal handler with signal 11 (SIGSEGV) ------
  [8] fil_space_free(id = ???, x_latched = ???) (optimized), at 0x87caceb (line ~1355) in "fil0fil.c"
  [9] fil_close_all_files() (optimized), at 0x87cb4c9 (line ~1656) in "fil0fil.c"
  [10] logs_empty_and_mark_files_at_shutdown() (optimized), at 0x88600a0 (line ~3250) in "log0log.c"
  [11] innobase_shutdown_for_mysql() (optimized), at 0x8500b11 (line ~1968) in "srv0start.c"
  [12] innobase_end(hton = ???, type = ???) (optimized), at 0x8474bf3 (line ~2533) in "ha_innodb.cc"
  [13] ha_finalize_handlerton(plugin = ???) (optimized), at 0x822f1bb (line ~407) in "handler.cc"
  [14] plugin_deinitialize(plugin = ???, ref_check = ???) (optimized), at 0x831d62f (line ~863) in "sql_plugin.cc"
  [15] reap_plugins() (optimized), at 0x831d970 (line ~938) in "sql_plugin.cc"
  [16] plugin_shutdown() (optimized), at 0x831f3ab (line ~1585) in "sql_plugin.cc"
  [17] clean_up(print_message = ???) (optimized), at 0x82135c2 (line ~1446) in "mysqld.cc"
  [18] end_embedded_server() (optimized), at 0x8218f06 (line ~598) in "lib_sql.cc"
  [19] mysql_server_end() (optimized), at 0x821b572 (line ~203) in "libmysql.c"
  [20] free_used_memory() (optimized), at 0x8191154 (line ~1289) in "mysqltest.cc"
  [21] cleanup_and_exit(exit_code = ???) (optimized), at 0x8191174 (line ~1298) in "mysqltest.cc"
  [22] main(argc = ???, argv = ???) (optimized), at 0x819c853 (line ~8789) in "mysqltest.cc"
current thread: t@2
=>[1] __lwp_park(0x0, 0x0), at 0xfec749ab 
  [2] cond_sleep_queue(0x94103dc, 0x94103b8, 0x0), at 0xfec6f060 
  [3] cond_wait_queue(0x94103dc, 0x94103b8, 0x0, 0x0), at 0xfec6f172 
  [4] _cond_wait(0x94103dc, 0x94103b8), at 0xfec6f66b 
  [5] cond_wait(0x94103dc, 0x94103b8), at 0xfec6f6ad 
  [6] _pthread_cond_wait(0x94103dc, 0x94103b8, 0xfe1fddc8, 0x889e282), at 0xfec6f6e6 
  [7] os_cond_wait(cond = ???, mutex = ???) (optimized), at 0x889e2f1 (line ~207) in "os0sync.c"
  [8] os_event_wait_low(event = ???, reset_sig_count = ???) (optimized), at 0x889ed8e (line ~634) in "os0sync.c"
  [9] os_aio_simulated_handle(global_segment = ???, message1 = ???, message2 = ???, type = ???) (optimized), at 0x88976ac (line ~4901) in "os0file.c"
  [10] fil_aio_wait(segment = ???) (optimized), at 0x87cfe0c (line ~4511) in "fil0fil.c"
  [11] io_handler_thread(arg = ???) (optimized), at 0x84fe97b (line ~483) in "srv0start.c"
  [12] _thr_setup(0xfefb2400), at 0xfec74662 
  [13] _lwp_start(0x0, 0x0, 0x0, 0x94103b8, 0xfefb2400, 0xfec9e000), at 0xfec74950 
current thread: t@3
=>[1] __lwp_park(0x0, 0x0), at 0xfec749ab 
  [2] cond_sleep_queue(0x9410424, 0x9410400, 0x0), at 0xfec6f060 
  [3] cond_wait_queue(0x9410424, 0x9410400, 0x0, 0x0), at 0xfec6f172 
  [4] _cond_wait(0x9410424, 0x9410400), at 0xfec6f66b 
  [5] cond_wait(0x9410424, 0x9410400), at 0xfec6f6ad 
  [6] _pthread_cond_wait(0x9410424, 0x9410400, 0xfe0fddc8, 0x889e282), at 0xfec6f6e6 
  [7] os_cond_wait(cond = ???, mutex = ???) (optimized), at 0x889e2f1 (line ~207) in "os0sync.c"
  [8] os_event_wait_low(event = ???, reset_sig_count = ???) (optimized), at 0x889ed8e (line ~634) in "os0sync.c"
  [9] os_aio_simulated_handle(global_segment = ???, message1 = ???, message2 = ???, type = ???) (optimized), at 0x88976ac (line ~4901) in "os0file.c"
  [10] fil_aio_wait(segment = ???) (optimized), at 0x87cfe0c (line ~4511) in "fil0fil.c"
  [11] io_handler_thread(arg = ???) (optimized), at 0x84fe97b (line ~483) in "srv0start.c"
  [12] _thr_setup(0xfeae0000), at 0xfec74662 
  [13] _lwp_start(0x0, 0x0, 0x0, 0x9410400, 0xfeae0000, 0xfec9e000), at 0xfec74950 
current thread: t@4
=>[1] __lwp_park(0x0, 0x0), at 0xfec749ab 
  [2] cond_sleep_queue(0x941046c, 0x9410448, 0x0), at 0xfec6f060 
  [3] cond_wait_queue(0x941046c, 0x9410448, 0x0, 0x0), at 0xfec6f172 
  [4] _cond_wait(0x941046c, 0x9410448), at 0xfec6f66b 
  [5] cond_wait(0x941046c, 0x9410448), at 0xfec6f6ad 
  [6] _pthread_cond_wait(0x941046c, 0x9410448, 0xfdffddc8, 0x889e282), at 0xfec6f6e6 
  [7] os_cond_wait(cond = ???, mutex = ???) (optimized), at 0x889e2f1 (line ~207) in "os0sync.c"
  [8] os_event_wait_low(event = ???, reset_sig_count = ???) (optimized), at 0x889ed8e (line ~634) in "os0sync.c"
  [9] os_aio_simulated_handle(global_segment = ???, message1 = ???, message2 = ???, type = ???) (optimized), at 0x88976ac (line ~4901) in "os0file.c"
  [10] fil_aio_wait(segment = ???) (optimized), at 0x87cfe0c (line ~4511) in "fil0fil.c"
  [11] io_handler_thread(arg = ???) (optimized), at 0x84fe97b (line ~483) in "srv0start.c"
  [12] _thr_setup(0xfeae0400), at 0xfec74662 
  [13] _lwp_start(0x0, 0x0, 0x0, 0x9410448, 0xfeae0400, 0xfec9e000), at 0xfec74950 
current thread: t@5
=>[1] __lwp_park(0x0, 0x0), at 0xfec749ab 
  [2] cond_sleep_queue(0x94104b4, 0x9410490, 0x0), at 0xfec6f060 
  [3] cond_wait_queue(0x94104b4, 0x9410490, 0x0, 0x0), at 0xfec6f172 
  [4] _cond_wait(0x94104b4, 0x9410490), at 0xfec6f66b 
  [5] cond_wait(0x94104b4, 0x9410490), at 0xfec6f6ad 
  [6] _pthread_cond_wait(0x94104b4, 0x9410490, 0xfdefddc8, 0x889e282), at 0xfec6f6e6 
  [7] os_cond_wait(cond = ???, mutex = ???) (optimized), at 0x889e2f1 (line ~207) in "os0sync.c"
  [8] os_event_wait_low(event = ???, reset_sig_count = ???) (optimized), at 0x889ed8e (line ~634) in "os0sync.c"
  [9] os_aio_simulated_handle(global_segment = ???, message1 = ???, message2 = ???, type = ???) (optimized), at 0x88976ac (line ~4901) in "os0file.c"
  [10] fil_aio_wait(segment = ???) (optimized), at 0x87cfe0c (line ~4511) in "fil0fil.c"
  [11] io_handler_thread(arg = ???) (optimized), at 0x84fe97b (line ~483) in "srv0start.c"
  [12] _thr_setup(0xfeae0800), at 0xfec74662 
  [13] _lwp_start(0x0, 0x0, 0x0, 0x9410490, 0xfeae0800, 0xfec9e000), at 0xfec74950 
current thread: t@6
=>[1] __lwp_park(0x0, 0x0), at 0xfec749ab 
  [2] cond_sleep_queue(0x94104fc, 0x94104d8, 0x0), at 0xfec6f060 
  [3] cond_wait_queue(0x94104fc, 0x94104d8, 0x0, 0x0), at 0xfec6f172 
  [4] _cond_wait(0x94104fc, 0x94104d8), at 0xfec6f66b 
  [5] cond_wait(0x94104fc, 0x94104d8), at 0xfec6f6ad 
  [6] _pthread_cond_wait(0x94104fc, 0x94104d8, 0xfddfddc8, 0x889e282), at 0xfec6f6e6 
  [7] os_cond_wait(cond = ???, mutex = ???) (optimized), at 0x889e2f1 (line ~207) in "os0sync.c"
  [8] os_event_wait_low(event = ???, reset_sig_count = ???) (optimized), at 0x889ed8e (line ~634) in "os0sync.c"
  [9] os_aio_simulated_handle(global_segment = ???, message1 = ???, message2 = ???, type = ???) (optimized), at 0x88976ac (line ~4901) in "os0file.c"
  [10] fil_aio_wait(segment = ???) (optimized), at 0x87cfe0c (line ~4511) in "fil0fil.c"
  [11] io_handler_thread(arg = ???) (optimized), at 0x84fe97b (line ~483) in "srv0start.c"
  [12] _thr_setup(0xfeae0c00), at 0xfec74662 
  [13] _lwp_start(0x0, 0x0, 0x0, 0x94104d8, 0xfeae0c00, 0xfec9e000), at 0xfec74950 
current thread: t@7
=>[1] __lwp_park(0x0, 0x0), at 0xfec749ab 
  [2] cond_sleep_queue(0x9410544, 0x9410520, 0x0), at 0xfec6f060 
  [3] cond_wait_queue(0x9410544, 0x9410520, 0x0, 0x0), at 0xfec6f172 
  [4] _cond_wait(0x9410544, 0x9410520), at 0xfec6f66b 
  [5] cond_wait(0x9410544, 0x9410520), at 0xfec6f6ad 
  [6] _pthread_cond_wait(0x9410544, 0x9410520, 0xfdcfddc8, 0x889e282), at 0xfec6f6e6 
  [7] os_cond_wait(cond = ???, mutex = ???) (optimized), at 0x889e2f1 (line ~207) in "os0sync.c"
  [8] os_event_wait_low(event = ???, reset_sig_count = ???) (optimized), at 0x889ed8e (line ~634) in "os0sync.c"
  [9] os_aio_simulated_handle(global_segment = ???, message1 = ???, message2 = ???, type = ???) (optimized), at 0x88976ac (line ~4901) in "os0file.c"
  [10] fil_aio_wait(segment = ???) (optimized), at 0x87cfe0c (line ~4511) in "fil0fil.c"
  [11] io_handler_thread(arg = ???) (optimized), at 0x84fe97b (line ~483) in "srv0start.c"
  [12] _thr_setup(0xfeae1000), at 0xfec74662 
  [13] _lwp_start(0x0, 0x0, 0x0, 0x9410520, 0xfeae1000, 0xfec9e000), at 0xfec74950 
current thread: t@10
=>[1] __lwp_park(0x0, 0xfd9fdea0), at 0xfec749ab 
  [2] cond_sleep_queue(0x930a674, 0x930a650, 0xfd9fdea0), at 0xfec6f060 
  [3] cond_wait_queue(0x930a674, 0x930a650, 0xfd9fdea0, 0x0), at 0xfec6f172 
  [4] cond_wait_common(0x930a674, 0x930a650, 0xfd9fdea0), at 0xfec6f512 
  [5] _cond_timedwait(0x930a674, 0x930a650, 0xfd9fdf48), at 0xfec6f746 
  [6] cond_timedwait(0x930a674, 0x930a650, 0xfd9fdf48), at 0xfec6f7b1 
  [7] _pthread_cond_timedwait(0x930a674, 0x930a650, 0xfd9fdf48, 0x889e1e6), at 0xfec6f7ed 
  [8] os_cond_wait_timed(cond = ???, mutex = ???, abstime = ???) (optimized), at 0x889e1fe (line ~171) in "os0sync.c"
  [9] os_event_wait_time_low(event = ???, time_in_usec = ???, reset_sig_count = ???) (optimized), at 0x889ef20 (line ~750) in "os0sync.c"
  [10] srv_error_monitor_thread(arg = ???) (optimized), at 0x84f1cd3 (line ~2420) in "srv0srv.c"
  [11] _thr_setup(0xfeae1c00), at 0xfec74662 
  [12] _lwp_start(0x0, 0xfd9fdea0, 0x0, 0x930a650, 0xfeae1c00, 0xfec9e000), at 0xfec74950 
current thread: t@12
=>[1] __lwp_park(0x0, 0x0), at 0xfec749ab 
  [2] cond_sleep_queue(0x9410644, 0x9410620, 0x0), at 0xfec6f060 
  [3] cond_wait_queue(0x9410644, 0x9410620, 0x0, 0x0), at 0xfec6f172 
  [4] _cond_wait(0x9410644, 0x9410620), at 0xfec6f66b 
  [5] cond_wait(0x9410644, 0x9410620), at 0xfec6f6ad 
  [6] _pthread_cond_wait(0x9410644, 0x9410620, 0xfd7fdcb8, 0x889e282), at 0xfec6f6e6 
  [7] os_cond_wait(cond = ???, mutex = ???) (optimized), at 0x889e2f1 (line ~207) in "os0sync.c"
  [8] os_event_wait_low(event = ???, reset_sig_count = ???) (optimized), at 0x889ed8e (line ~634) in "os0sync.c"
  [9] sync_array_wait_event(arr = ???, index = ???) (optimized), at 0x8505b60 (line ~457) in "sync0arr.c"
  [10] mutex_spin_wait(mutex = ???, file_name = ???, line = ???) (optimized), at 0x8511523 (line ~621) in "sync0sync.c"
  [11] mutex_enter_func(mutex = ???, file_name = ???, line = ???) (optimized), at 0x87c108a (line ~222) in "sync0sync.ic"
  [12] pfs_mutex_enter_func(mutex = ???, file_name = ???, line = ???) (optimized), at 0x87c1103 (line ~251) in "sync0sync.ic"
  [13] fil_flush(space_id = ???) (optimized), at 0x87d010b (line ~4602) in "fil0fil.c"
  [14] fil_flush_file_spaces(purpose = ???) (optimized), at 0x87d0468 (line ~4704) in "fil0fil.c"
  [15] log_checkpoint(sync = ???, write_always = ???) (optimized), at 0x885f783 (line ~1987) in "log0log.c"
  [16] srv_master_thread(arg = ???) (optimized), at 0x84f2ab5 (line ~2958) in "srv0srv.c"
  [17] _thr_setup(0xfeae2400), at 0xfec74662 
  [18] _lwp_start(0x0, 0x0, 0x0, 0x9410620, 0xfeae2400, 0xfec9e000), at 0xfec74950