Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `/data0/ACRT_CLONES/builds/clone-mysql-5.1-telco-7.0-2009-06-19.7237/sql/mysqld'.Program terminated with signal 6, Aborted. #0 0x0000003907e0b142 in pthread_kill () from /lib64/libpthread.so.0 #0 0x0000003907e0b142 in pthread_kill () from /lib64/libpthread.so.0 #1 0x0000000000e448c2 in my_write_core (sig=6) at stacktrace.c:313 #2 0x000000000074c15e in handle_segfault (sig=6) at mysqld.cc:2576 #3 #4 0x0000003907230155 in raise () from /lib64/libc.so.6 #5 0x0000003907231bf0 in abort () from /lib64/libc.so.6 #6 0x00000039072295d6 in __assert_fail () from /lib64/libc.so.6 #7 0x0000000000dcd9a5 in NdbBlob::preCommit (this=0x13584820) at NdbBlob.cpp:2950 #8 0x0000000000d3557b in NdbTransaction::execute (this=0x13491750, aTypeOfExec=NdbTransaction::Commit, abortOption=NdbOperation::AO_IgnoreError, forceSend=1) at NdbTransaction.cpp:398 #9 0x0000000000af4335 in execute_commit (thd_ndb=0x134d4c40, trans=0x13491750, force_send=1, ignore_error=0, ignore_count=0x0) at ha_ndbcluster.cc:599 #10 0x0000000000ae6445 in ndbcluster_commit (hton=0x1338b7a8, thd=0x13434698, all=false) at ha_ndbcluster.cc:6100 #11 0x0000000000960d88 in ha_commit_one_phase (thd=0x13434698, all=false) at handler.cc:1222 #12 0x0000000000961719 in ha_commit_trans (thd=0x13434698, all=false) at handler.cc:1181 #13 0x00000000009619d6 in ha_enable_transaction (thd=0x13434698, on=true) at handler.cc:3445 #14 0x0000000000985c45 in copy_data_between_tables (from=0x1345e138, to=0x135993a8, create=@0x44c54078, ignore=false, order_num=0, order=0x0, copied=0x44c533f0, deleted=0x44c533e8, keys_onoff=LEAVE_AS_IS, error_if_not_empty=false) at sql_table.cc:7625 #15 0x0000000000998bc8 in mysql_alter_table (thd=0x13434698, new_db=0x134c6a88 "test", new_name=0x134c6a90 "t1", create_info=0x44c53730, table_list=0x134c6ac8, alter_info=0x44c54030, order_num=0, order=0x0, ignore=false) at sql_table.cc:7174 #16 0x000000000076c632 in mysql_execute_command (thd=0x13434698) at sql_parse.cc:2869 #17 0x0000000000777fe6 in mysql_parse (thd=0x13434698, inBuf=0x134c6998 "ALTER TABLE test.t1 ADD INDEX a2_i (a2), ADD INDEX a3_i (a3)", length=60, found_semicolon=0x44c54f00) at sql_parse.cc:5935 #18 0x0000000000779443 in dispatch_command (command=COM_QUERY, thd=0x13434698, packet=0x13489889 "ALTER TABLE test.t1 ADD INDEX a2_i (a2), ADD INDEX a3_i (a3)", packet_length=60) at sql_parse.cc:1219 #19 0x000000000077b360 in do_command (thd=0x13434698) at sql_parse.cc:860 #20 0x000000000075baf5 in handle_one_connection (arg=0x13434698) at sql_connect.cc:1116 #21 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #22 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 27 (process 16946): #0 0x00000039072cb332 in select () from /lib64/libc.so.6 #1 0x000000000074d068 in handle_connections_sockets (arg=0x0) at mysqld.cc:5007 #2 0x0000000000752c34 in main (argc=6, argv=0x7fffc2ab7ba8) at mysqld.cc:4510 Thread 26 (process 16959): #0 0x0000003907e0a4b6 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000e4d025 in safe_cond_wait (cond=0x13309768, mp=0x133096f0, file=0x10f0912 "os/os0sync.c", line=422) at thr_mutex.c:240 #2 0x0000000000be5de1 in os_event_wait_low (event=0x133096f0, reset_sig_count=0) at os/os0sync.c:422 #3 0x0000000000be3f7e in os_aio_simulated_handle (global_segment=0, message1=0x40e4c0e8, message2=0x40e4c0e0, type=0x40e4c0d8) at os/os0file.c:4207 #4 0x0000000000ba2ab3 in fil_aio_wait (segment=0) at fil/fil0fil.c:4246 #5 0x0000000000c2c153 in io_handler_thread (arg=0x17c7e20) at srv/srv0start.c:435 #6 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #7 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 25 (process 16960): #0 0x0000003907e0a4b6 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000e4d025 in safe_cond_wait (cond=0x13309848, mp=0x133097d0, file=0x10f0912 "os/os0sync.c", line=422) at thr_mutex.c:240 #2 0x0000000000be5de1 in os_event_wait_low (event=0x133097d0, reset_sig_count=0) at os/os0sync.c:422 #3 0x0000000000be3f7e in os_aio_simulated_handle (global_segment=1, message1=0x4184d0e8, message2=0x4184d0e0, type=0x4184d0d8) at os/os0file.c:4207 #4 0x0000000000ba2ab3 in fil_aio_wait (segment=1) at fil/fil0fil.c:4246 #5 0x0000000000c2c153 in io_handler_thread (arg=0x17c7e28) at srv/srv0start.c:435 #6 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #7 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 24 (process 16961): #0 0x0000003907e0a4b6 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000e4d025 in safe_cond_wait (cond=0x13309928, mp=0x133098b0, file=0x10f0912 "os/os0sync.c", line=422) at thr_mutex.c:240 #2 0x0000000000be5de1 in os_event_wait_low (event=0x133098b0, reset_sig_count=0) at os/os0sync.c:422 #3 0x0000000000be3f7e in os_aio_simulated_handle (global_segment=2, message1=0x4224e0e8, message2=0x4224e0e0, type=0x4224e0d8) at os/os0file.c:4207 #4 0x0000000000ba2ab3 in fil_aio_wait (segment=2) at fil/fil0fil.c:4246 #5 0x0000000000c2c153 in io_handler_thread (arg=0x17c7e30) at srv/srv0start.c:435 #6 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #7 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 23 (process 16962): #0 0x0000003907e0a4b6 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000e4d025 in safe_cond_wait (cond=0x13309a08, mp=0x13309990, file=0x10f0912 "os/os0sync.c", line=422) at thr_mutex.c:240 #2 0x0000000000be5de1 in os_event_wait_low (event=0x13309990, reset_sig_count=0) at os/os0sync.c:422 #3 0x0000000000be3f7e in os_aio_simulated_handle (global_segment=3, message1=0x42c4f0e8, message2=0x42c4f0e0, type=0x42c4f0d8) at os/os0file.c:4207 #4 0x0000000000ba2ab3 in fil_aio_wait (segment=3) at fil/fil0fil.c:4246 #5 0x0000000000c2c153 in io_handler_thread (arg=0x17c7e38) at srv/srv0start.c:435 #6 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #7 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 22 (process 17034): #0 0x00000039072cb332 in select () from /lib64/libc.so.6 #1 0x0000000000be6b86 in os_thread_sleep (tm=1000000) at os/os0thread.c:281 #2 0x0000000000c298e3 in srv_lock_timeout_and_monitor_thread (arg=0x0) at srv/srv0srv.c:1923 #3 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #4 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 21 (process 17035): #0 0x00000039072cb332 in select () from /lib64/libc.so.6 #1 0x0000000000be6b86 in os_thread_sleep (tm=1000000) at os/os0thread.c:281 #2 0x0000000000c2a389 in srv_error_monitor_thread (arg=0x0) at srv/srv0srv.c:2149 #3 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #4 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 20 (process 17038): #0 0x0000003907e0a4b6 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000e4d025 in safe_cond_wait (cond=0x12c69238, mp=0x12c691c0, file=0x10f0912 "os/os0sync.c", line=422) at thr_mutex.c:240 #2 0x0000000000be5de1 in os_event_wait_low (event=0x12c691c0, reset_sig_count=0) at os/os0sync.c:422 #3 0x0000000000c2b48a in srv_master_thread (arg=0x0) at srv/srv0srv.c:2638 #4 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #5 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 19 (process 17042): #0 0x00000039072cb332 in select () from /lib64/libc.so.6 #1 0x0000000000e39777 in my_sleep (m_seconds=10000) at my_sleep.c:34 #2 0x0000000000ec83d5 in NdbSleep_MilliSleep (milliseconds=10) at ../../../../storage/ndb/include/portlib/NdbSleep.h:31 #3 0x0000000000ec84e1 in TransporterFacade::threadMainReceive (this=0x1338e250) at TransporterFacade.cpp:587 #4 0x0000000000ec8680 in runReceiveResponse_C (me=0x1338e250) at TransporterFacade.cpp:564 #5 0x0000000000e8bce3 in ndb_thread_wrapper (_ss=0x133a8780) at NdbThread.c:147 #6 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #7 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 18 (process 17043): #0 0x00000039072cb332 in select () from /lib64/libc.so.6 #1 0x0000000000e39777 in my_sleep (m_seconds=10000) at my_sleep.c:34 #2 0x0000000000ec83d5 in NdbSleep_MilliSleep (milliseconds=10) at ../../../../storage/ndb/include/portlib/NdbSleep.h:31 #3 0x0000000000ec883b in TransporterFacade::threadMainSend (this=0x1338e250) at TransporterFacade.cpp:544 #4 0x0000000000ec89a4 in runSendRequest_C (me=0x1338e250) at TransporterFacade.cpp:529 #5 0x0000000000e8bce3 in ndb_thread_wrapper (_ss=0x133ba050) at NdbThread.c:147 #6 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #7 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 17 (process 17044): #0 0x00000039072cb332 in select () from /lib64/libc.so.6 #1 0x0000000000e39777 in my_sleep (m_seconds=100000) at my_sleep.c:34 #2 0x0000000000ef8277 in NdbSleep_MilliSleep (milliseconds=100) at ../../../../../storage/ndb/include/portlib/NdbSleep.h:31 #3 0x0000000000ef830c in TransporterRegistry::start_clients_thread (this=0x133a8be0) at TransporterRegistry.cpp:1493 #4 0x0000000000ef8cc6 in run_start_clients_C (me=0x133a8be0) at TransporterRegistry.cpp:1318 #5 0x0000000000e8bce3 in ndb_thread_wrapper (_ss=0x133ba720) at NdbThread.c:147 #6 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #7 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 16 (process 17045): #0 0x00000039072cb332 in select () from /lib64/libc.so.6 #1 0x0000000000e39777 in my_sleep (m_seconds=100000) at my_sleep.c:34 #2 0x0000000000d0fcdb in NdbSleep_MilliSleep (milliseconds=100) at ../../../../storage/ndb/include/portlib/NdbSleep.h:31 #3 0x0000000000d0fe6f in ClusterMgr::threadMain (this=0x133b0aa0) at ClusterMgr.cpp:254 #4 0x0000000000d102f2 in runClusterMgr_C (me=0x133b0aa0) at ClusterMgr.cpp:50 #5 0x0000000000e8bce3 in ndb_thread_wrapper (_ss=0x133ba760) at NdbThread.c:147 #6 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #7 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 15 (process 17052): #0 0x00000039072cb332 in select () from /lib64/libc.so.6 #1 0x0000000000e9ce90 in SocketServer::doAccept (this=0x133a08f0) at SocketServer.cpp:191 #2 0x0000000000e9d23c in SocketServer::doRun (this=0x133a08f0) at SocketServer.cpp:269 #3 0x0000000000e9d2d8 in socketServerThread_C (_ss=0x133a08f0) at SocketServer.cpp:227 #4 0x0000000000e8bce3 in ndb_thread_wrapper (_ss=0x133ad590) at NdbThread.c:147 #5 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #6 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 14 (process 17058): #0 0x00000039072cb332 in select () from /lib64/libc.so.6 #1 0x0000000000e39777 in my_sleep (m_seconds=10000) at my_sleep.c:34 #2 0x0000000000ec83d5 in NdbSleep_MilliSleep (milliseconds=10) at ../../../../storage/ndb/include/portlib/NdbSleep.h:31 #3 0x0000000000ec84e1 in TransporterFacade::threadMainReceive (this=0x133bb4c0) at TransporterFacade.cpp:587 #4 0x0000000000ec8680 in runReceiveResponse_C (me=0x133bb4c0) at TransporterFacade.cpp:564 #5 0x0000000000e8bce3 in ndb_thread_wrapper (_ss=0x133f15c0) at NdbThread.c:147 #6 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #7 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 13 (process 17059): #0 0x00000039072cb332 in select () from /lib64/libc.so.6 #1 0x0000000000e39777 in my_sleep (m_seconds=10000) at my_sleep.c:34 #2 0x0000000000ec83d5 in NdbSleep_MilliSleep (milliseconds=10) at ../../../../storage/ndb/include/portlib/NdbSleep.h:31 #3 0x0000000000ec883b in TransporterFacade::threadMainSend (this=0x133bb4c0) at TransporterFacade.cpp:544 #4 0x0000000000ec89a4 in runSendRequest_C (me=0x133bb4c0) at TransporterFacade.cpp:529 #5 0x0000000000e8bce3 in ndb_thread_wrapper (_ss=0x133f1c90) at NdbThread.c:147 #6 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #7 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 12 (process 17060): #0 0x00000039072cb332 in select () from /lib64/libc.so.6 #1 0x0000000000e39777 in my_sleep (m_seconds=100000) at my_sleep.c:34 #2 0x0000000000ef8277 in NdbSleep_MilliSleep (milliseconds=100) at ../../../../../storage/ndb/include/portlib/NdbSleep.h:31 #3 0x0000000000ef830c in TransporterRegistry::start_clients_thread (this=0x133e05c0) at TransporterRegistry.cpp:1493 #4 0x0000000000ef8cc6 in run_start_clients_C (me=0x133e05c0) at TransporterRegistry.cpp:1318 #5 0x0000000000e8bce3 in ndb_thread_wrapper (_ss=0x133f2360) at NdbThread.c:147 #6 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #7 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 11 (process 17061): #0 0x00000039072cb332 in select () from /lib64/libc.so.6 #1 0x0000000000e39777 in my_sleep (m_seconds=100000) at my_sleep.c:34 #2 0x0000000000d0fcdb in NdbSleep_MilliSleep (milliseconds=100) at ../../../../storage/ndb/include/portlib/NdbSleep.h:31 #3 0x0000000000d0fe6f in ClusterMgr::threadMain (this=0x133e86a0) at ClusterMgr.cpp:254 #4 0x0000000000d102f2 in runClusterMgr_C (me=0x133e86a0) at ClusterMgr.cpp:50 #5 0x0000000000e8bce3 in ndb_thread_wrapper (_ss=0x133f23a0) at NdbThread.c:147 #6 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #7 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 10 (process 17062): #0 0x00000039072cb332 in select () from /lib64/libc.so.6 #1 0x0000000000e9ce90 in SocketServer::doAccept (this=0x133cdb60) at SocketServer.cpp:191 #2 0x0000000000e9d23c in SocketServer::doRun (this=0x133cdb60) at SocketServer.cpp:269 #3 0x0000000000e9d2d8 in socketServerThread_C (_ss=0x133cdb60) at SocketServer.cpp:227 #4 0x0000000000e8bce3 in ndb_thread_wrapper (_ss=0x133f3100) at NdbThread.c:147 #5 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #6 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 9 (process 17071): #0 0x00000039072cb332 in select () from /lib64/libc.so.6 #1 0x0000000000e39777 in my_sleep (m_seconds=10000) at my_sleep.c:34 #2 0x0000000000ec83d5 in NdbSleep_MilliSleep (milliseconds=10) at ../../../../storage/ndb/include/portlib/NdbSleep.h:31 #3 0x0000000000ec84e1 in TransporterFacade::threadMainReceive (this=0x133cdc70) at TransporterFacade.cpp:587 #4 0x0000000000ec8680 in runReceiveResponse_C (me=0x133cdc70) at TransporterFacade.cpp:564 #5 0x0000000000e8bce3 in ndb_thread_wrapper (_ss=0x13401a90) at NdbThread.c:147 #6 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #7 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 8 (process 17072): #0 0x00000039072cb332 in select () from /lib64/libc.so.6 #1 0x0000000000e39777 in my_sleep (m_seconds=10000) at my_sleep.c:34 #2 0x0000000000ec83d5 in NdbSleep_MilliSleep (milliseconds=10) at ../../../../storage/ndb/include/portlib/NdbSleep.h:31 #3 0x0000000000ec883b in TransporterFacade::threadMainSend (this=0x133cdc70) at TransporterFacade.cpp:544 #4 0x0000000000ec89a4 in runSendRequest_C (me=0x133cdc70) at TransporterFacade.cpp:529 #5 0x0000000000e8bce3 in ndb_thread_wrapper (_ss=0x13402160) at NdbThread.c:147 #6 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #7 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 7 (process 17073): #0 0x00000039072cb332 in select () from /lib64/libc.so.6 #1 0x0000000000e39777 in my_sleep (m_seconds=100000) at my_sleep.c:34 #2 0x0000000000d0fcdb in NdbSleep_MilliSleep (milliseconds=100) at ../../../../storage/ndb/include/portlib/NdbSleep.h:31 #3 0x0000000000d0fe6f in ClusterMgr::threadMain (this=0x133f8b90) at ClusterMgr.cpp:254 #4 0x0000000000d102f2 in runClusterMgr_C (me=0x133f8b90) at ClusterMgr.cpp:50 #5 0x0000000000e8bce3 in ndb_thread_wrapper (_ss=0x13402830) at NdbThread.c:147 #6 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #7 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 6 (process 17074): #0 0x00000039072cb332 in select () from /lib64/libc.so.6 #1 0x0000000000e39777 in my_sleep (m_seconds=100000) at my_sleep.c:34 #2 0x0000000000ef8277 in NdbSleep_MilliSleep (milliseconds=100) at ../../../../../storage/ndb/include/portlib/NdbSleep.h:31 #3 0x0000000000ef830c in TransporterRegistry::start_clients_thread (this=0x133f3260) at TransporterRegistry.cpp:1493 #4 0x0000000000ef8cc6 in run_start_clients_C (me=0x133f3260) at TransporterRegistry.cpp:1318 #5 0x0000000000e8bce3 in ndb_thread_wrapper (_ss=0x13402990) at NdbThread.c:147 #6 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #7 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 5 (process 17075): #0 0x00000039072cb332 in select () from /lib64/libc.so.6 #1 0x0000000000e9ce90 in SocketServer::doAccept (this=0x133e0310) at SocketServer.cpp:191 #2 0x0000000000e9d23c in SocketServer::doRun (this=0x133e0310) at SocketServer.cpp:269 #3 0x0000000000e9d2d8 in socketServerThread_C (_ss=0x133e0310) at SocketServer.cpp:227 #4 0x0000000000e8bce3 in ndb_thread_wrapper (_ss=0x133e5da0) at NdbThread.c:147 #5 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #6 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 4 (process 17081): #0 0x0000003907e0a6a7 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000e8af96 in NdbCondition_WaitTimeoutAbs (p_cond=0x13417f40, p_mutex=0x133a0bf0, abstime=0x44b91950) at NdbCondition.c:191 #2 0x0000000000e8adf5 in NdbCondition_WaitTimeout (p_cond=0x13417f40, p_mutex=0x133a0bf0, msecs=1000) at NdbCondition.c:141 #3 0x0000000000d67e1e in NdbEventBuffer::pollEvents (this=0x13415780, aMillisecondNumber=1000, latestGCI=0x44b91f50) at NdbEventOperationImpl.cpp:1217 #4 0x0000000000d13a10 in Ndb::pollEvents (this=0x13412b80, aMillisecondNumber=1000, latestGCI=0x44b91f50) at Ndb.cpp:2068 #5 0x0000000000b0bfb5 in ndb_binlog_thread_func (arg=0x0) at ha_ndbcluster_binlog.cc:5758 #6 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #7 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 3 (process 17082): #0 0x0000003907e0a6a7 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000e4d334 in safe_cond_timedwait (cond=0x176ef80, mp=0x176ef00, abstime=0x44bd30b0, file=0x10cd990 "ha_ndbcluster.cc", line=11484) at thr_mutex.c:278 #2 0x0000000000ad66b9 in ndb_util_thread_func (arg=0x0) at ha_ndbcluster.cc:11482 #3 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #4 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 2 (process 17083): #0 0x0000003907e0dbb8 in do_sigwait () from /lib64/libpthread.so.0 #1 0x0000003907e0dc5d in sigwait () from /lib64/libpthread.so.0 #2 0x000000000074b516 in signal_hand (arg=0x0) at mysqld.cc:2778 #3 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #4 0x00000039072d1ded in clone () from /lib64/libc.so.6 Thread 1 (process 17100): #0 0x0000003907e0b142 in pthread_kill () from /lib64/libpthread.so.0 #1 0x0000000000e448c2 in my_write_core (sig=6) at stacktrace.c:313 #2 0x000000000074c15e in handle_segfault (sig=6) at mysqld.cc:2576 #3 #4 0x0000003907230155 in raise () from /lib64/libc.so.6 #5 0x0000003907231bf0 in abort () from /lib64/libc.so.6 #6 0x00000039072295d6 in __assert_fail () from /lib64/libc.so.6 #7 0x0000000000dcd9a5 in NdbBlob::preCommit (this=0x13584820) at NdbBlob.cpp:2950 #8 0x0000000000d3557b in NdbTransaction::execute (this=0x13491750, aTypeOfExec=NdbTransaction::Commit, abortOption=NdbOperation::AO_IgnoreError, forceSend=1) at NdbTransaction.cpp:398 #9 0x0000000000af4335 in execute_commit (thd_ndb=0x134d4c40, trans=0x13491750, force_send=1, ignore_error=0, ignore_count=0x0) at ha_ndbcluster.cc:599 #10 0x0000000000ae6445 in ndbcluster_commit (hton=0x1338b7a8, thd=0x13434698, all=false) at ha_ndbcluster.cc:6100 #11 0x0000000000960d88 in ha_commit_one_phase (thd=0x13434698, all=false) at handler.cc:1222 #12 0x0000000000961719 in ha_commit_trans (thd=0x13434698, all=false) at handler.cc:1181 #13 0x00000000009619d6 in ha_enable_transaction (thd=0x13434698, on=true) at handler.cc:3445 #14 0x0000000000985c45 in copy_data_between_tables (from=0x1345e138, to=0x135993a8, create=@0x44c54078, ignore=false, order_num=0, order=0x0, copied=0x44c533f0, deleted=0x44c533e8, keys_onoff=LEAVE_AS_IS, error_if_not_empty=false) at sql_table.cc:7625 #15 0x0000000000998bc8 in mysql_alter_table (thd=0x13434698, new_db=0x134c6a88 "test", new_name=0x134c6a90 "t1", create_info=0x44c53730, table_list=0x134c6ac8, alter_info=0x44c54030, order_num=0, order=0x0, ignore=false) at sql_table.cc:7174 #16 0x000000000076c632 in mysql_execute_command (thd=0x13434698) at sql_parse.cc:2869 #17 0x0000000000777fe6 in mysql_parse (thd=0x13434698, inBuf=0x134c6998 "ALTER TABLE test.t1 ADD INDEX a2_i (a2), ADD INDEX a3_i (a3)", length=60, found_semicolon=0x44c54f00) at sql_parse.cc:5935 #18 0x0000000000779443 in dispatch_command (command=COM_QUERY, thd=0x13434698, packet=0x13489889 "ALTER TABLE test.t1 ADD INDEX a2_i (a2), ADD INDEX a3_i (a3)", packet_length=60) at sql_parse.cc:1219 #19 0x000000000077b360 in do_command (thd=0x13434698) at sql_parse.cc:860 #20 0x000000000075baf5 in handle_one_connection (arg=0x13434698) at sql_connect.cc:1116 #21 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #22 0x00000039072d1ded in clone () from /lib64/libc.so.6