2014-09-05 18:39:48 29660 [Note] /usr/sbin/mysqld: ready for connections.
Version: '5.6.20-68.0' socket: '/var/run/mysqld/mysqld.sock' port: 3306 Percona Server (GPL), Release 68.0, Revision 656
15:45:39 UTC - mysqld got signal 11 ;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.
We will try our best to scrape up some info that will hopefully help
diagnose the problem, but since we have already crashed,
something is definitely wrong and this may fail.
Please help us make Percona Server better by reporting any
bugs at http://bugs.percona.com/
key_buffer_size=8388608
read_buffer_size=131072
max_used_connections=1
max_threads=153
thread_count=1
connection_count=1
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 69178 K bytes of memory
Hope that's ok; if not, decrease some variables in the equation.
Thread pointer: 0x336b720
Attempting backtrace. You can use the following information to find out
where mysqld died. If you see no messages after this, something went
terribly wrong...
stack_bottom = 7f85a6cb3e60 thread_stack 0x40000
/usr/sbin/mysqld(my_print_stacktrace+0x2c)[0x903efc]
/usr/sbin/mysqld(handle_fatal_signal+0x352)[0x660b02]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x10340)[0x7f85d479f340]
/lib/x86_64-linux-gnu/libc.so.6(+0x140d5a)[0x7f85d3effd5a]
/usr/sbin/mysqld(_ZNSt8_Rb_treeIP14dict_foreign_tS1_St9_IdentityIS1_E20dict_foreign_compareSaIS1_EE11equal_rangeERKS1_+0x9d)[0xb00c0d]
/usr/sbin/mysqld[0xb0063a]
/usr/sbin/mysqld[0x9c319a]
/usr/sbin/mysqld(_Z17mysql_alter_tableP3THDPcS1_P24st_ha_create_informationP10TABLE_LISTP10Alter_infojP8st_orderb+0x1f81)[0x7456e1]
/usr/sbin/mysqld(_ZN19Sql_cmd_alter_table7executeEP3THD+0x482)[0x839c42]
/usr/sbin/mysqld(_Z21mysql_execute_commandP3THD+0x1509)[0x6ed1d9]
/usr/sbin/mysqld(_Z11mysql_parseP3THDPcjP12Parser_state+0x5c8)[0x6f2ed8]
/usr/sbin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x21f6)[0x6f5716]
/usr/sbin/mysqld(_Z24do_handle_one_connectionP3THD+0x20d)[0x6bb4bd]
/usr/sbin/mysqld(handle_one_connection+0x39)[0x6bb539]
/usr/sbin/mysqld(pfs_spawn_thread+0x140)[0x948880]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x8182)[0x7f85d4797182]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7f85d3eb9fbd]
Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query (7f8578005170): is an invalid pointer
Connection ID (thread ID): 2
Status: NOT_KILLED
This is what I see in the error log:
2014-09-05 18:39:48 29660 [Note] /usr/sbin/mysqld: ready for connections. mysqld/ mysqld. sock' port: 3306 Percona Server (GPL), Release 68.0, Revision 656 bugs.percona. com/
Version: '5.6.20-68.0' socket: '/var/run/
15:45:39 UTC - mysqld got signal 11 ;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.
We will try our best to scrape up some info that will hopefully help
diagnose the problem, but since we have already crashed,
something is definitely wrong and this may fail.
Please help us make Percona Server better by reporting any
bugs at http://
key_buffer_ size=8388608 size=131072 connections= 1 size)*max_ threads = 69178 K bytes of memory
read_buffer_
max_used_
max_threads=153
thread_count=1
connection_count=1
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_
Hope that's ok; if not, decrease some variables in the equation.
Thread pointer: 0x336b720 mysqld( my_print_ stacktrace+ 0x2c)[0x903efc] mysqld( handle_ fatal_signal+ 0x352)[ 0x660b02] 64-linux- gnu/libpthread. so.0(+0x10340) [0x7f85d479f340 ] 64-linux- gnu/libc. so.6(+0x140d5a) [0x7f85d3effd5a ] mysqld( _ZNSt8_ Rb_treeIP14dict _foreign_ tS1_St9_ IdentityIS1_ E20dict_ foreign_ compareSaIS1_ EE11equal_ rangeERKS1_ +0x9d)[ 0xb00c0d] mysqld[ 0xb0063a] mysqld[ 0x9c319a] mysqld( _Z17mysql_ alter_tableP3TH DPcS1_P24st_ ha_create_ informationP10T ABLE_LISTP10Alt er_infojP8st_ orderb+ 0x1f81) [0x7456e1] mysqld( _ZN19Sql_ cmd_alter_ table7executeEP 3THD+0x482) [0x839c42] mysqld( _Z21mysql_ execute_ commandP3THD+ 0x1509) [0x6ed1d9] mysqld( _Z11mysql_ parseP3THDPcjP1 2Parser_ state+0x5c8) [0x6f2ed8] mysqld( _Z16dispatch_ command19enum_ server_ commandP3THDPcj +0x21f6) [0x6f5716] mysqld( _Z24do_ handle_ one_connectionP 3THD+0x20d) [0x6bb4bd] mysqld( handle_ one_connection+ 0x39)[0x6bb539] mysqld( pfs_spawn_ thread+ 0x140)[ 0x948880] 64-linux- gnu/libpthread. so.0(+0x8182) [0x7f85d4797182 ] 64-linux- gnu/libc. so.6(clone+ 0x6d)[0x7f85d3e b9fbd]
Attempting backtrace. You can use the following information to find out
where mysqld died. If you see no messages after this, something went
terribly wrong...
stack_bottom = 7f85a6cb3e60 thread_stack 0x40000
/usr/sbin/
/usr/sbin/
/lib/x86_
/lib/x86_
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/usr/sbin/
/lib/x86_
/lib/x86_
Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query (7f8578005170): is an invalid pointer
Connection ID (thread ID): 2
Status: NOT_KILLED