/usr/lib64/galera/libgalera_smm.so - mysqld got signal 11

[Bertrand Jacquin]

I'm using the following components :

- 5.5.35-MariaDB-wsrep-log
- wsrep_25.9.r3944
- galera-25.3.2

And after an uptime of 10 days, I get the following crash on the salve node :

140227 11:25:48 [ERROR] 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.

To report this bug, see http://kb.askmonty.org/en/reporting-bugs

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.

Server version: 5.5.35-MariaDB-wsrep-log
key_buffer_size=2097152000
read_buffer_size=131072
max_used_connections=15
max_threads=2002
thread_count=2
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 6440932 K bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x0x7f8c200009a0
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 = 0x7f8c48105ad8 thread_stack 0x48000
/usr/sbin/mysqld(my_print_stacktrace+0x39)[0x7f8c4b8bd819]
/usr/sbin/mysqld(handle_fatal_signal+0x426)[0x7f8c4b504646]
/lib64/libpthread.so.0(+0x10b10)[0x7f8c4a38bb10]
/usr/lib64/galera/libgalera_smm.so(+0x1adc57)[0x7f8c482b4c57]
/usr/lib64/galera/libgalera_smm.so(_ZNSt3tr110_HashtableIPN6galera10KeyEntryNGES3_SaIS3_ESt9_IdentityIS3_ENS1_18KeyEntryPtrEqualNGENS1_17KeyEntryPtrHashNGENS_8__detail18_Mod_range_hashingENS9_20_Default_ranged_hashENS9_20_Prime_rehash_policyELb0ELb1ELb1EE4findERKS3_+0x4b)[0x7f8c482bc6cb]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13Certification10do_test_v3EPNS_9TrxHandleEb+0x1b7)[0x7f8c482b9787]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13Certification7do_testEPNS_9TrxHandleEb+0x3cf)[0x7f8c482ba57f]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13Certification4testEPNS_9TrxHandleEb+0x50)[0x7f8c482ba740]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13Certification10append_trxEPNS_9TrxHandleE+0xcc)[0x7f8c482baacc]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13ReplicatorSMM4certEPNS_9TrxHandleE+0x9d)[0x7f8c482e164d]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13ReplicatorSMM11process_trxEPvPNS_9TrxHandleE+0x3f)[0x7f8c482e21df]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera15GcsActionSource8dispatchEPvRK10gcs_actionRb+0x414)[0x7f8c482c35a4]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera15GcsActionSource7processEPvRb+0x6b)[0x7f8c482c412b]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13ReplicatorSMM10async_recvEPv+0x7d)[0x7f8c482e41cd]
/usr/lib64/galera/libgalera_smm.so(galera_recv+0x36)[0x7f8c482f8df6]
/usr/sbin/mysqld(+0x4a3fa4)[0x7f8c4b4b4fa4]
/usr/sbin/mysqld(start_wsrep_THD+0x3a0)[0x7f8c4b32f0e0]
/lib64/libpthread.so.0(+0x8f3a)[0x7f8c4a383f3a]
/lib64/libc.so.6(clone+0x6d)[0x7f8c49aa60ed]

Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query (0x0): is an invalid pointer
Connection ID (thread ID): 2
Status: NOT_KILLED

Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=off

The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
information that should help you find out what is causing the crash.

[Bertrand Jacquin (beber)]

On the master host, package are in the very same version and get the following error :

140227 11:25:35 [Note] WSREP: Created page /srv/sql/data/gcache.page.000027 of size 216232044 bytes
140227 11:25:48 [ERROR] 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.

To report this bug, see http://kb.askmonty.org/en/reporting-bugs

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.

Server version: 5.5.35-MariaDB-wsrep-log
key_buffer_size=2097152000
read_buffer_size=131072
max_used_connections=56
max_threads=2002
thread_count=24
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 6440932 K bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x0x7f694eda2ff0
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...
140227 11:25:48 [Note] WSREP: Deleted page /srv/sql/data/gcache.page.000027
stack_bottom = 0x7f684d59de68 thread_stack 0x48000
/usr/sbin/mysqld(my_print_stacktrace+0x39)[0x7f694b163819]
/usr/sbin/mysqld(handle_fatal_signal+0x426)[0x7f694adaa646]
/lib64/libpthread.so.0(+0x10b10)[0x7f6949c31b10]
/usr/lib64/galera/libgalera_smm.so(+0x1adc57)[0x7f6933b4cc57]
/usr/lib64/galera/libgalera_smm.so(_ZNSt3tr110_HashtableIPN6galera10KeyEntryNGES3_SaIS3_ESt9_IdentityIS3_ENS1_18KeyEntryPtrEqualNGENS1_17KeyEntryPtrHashNGENS_8__detail18_Mod_range_hashingENS9_20_Default_ranged_hashENS9_20_Prime_rehash_policyELb0ELb1ELb1EE4findERKS3_+0x4b)[0x7f6933b546cb]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13Certification10do_test_v3EPNS_9TrxHandleEb+0x1b7)[0x7f6933b51787]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13Certification7do_testEPNS_9TrxHandleEb+0x3cf)[0x7f6933b5257f]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13Certification4testEPNS_9TrxHandleEb+0x50)[0x7f6933b52740]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13Certification10append_trxEPNS_9TrxHandleE+0xcc)[0x7f6933b52acc]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13ReplicatorSMM4certEPNS_9TrxHandleE+0x9d)[0x7f6933b7964d]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13ReplicatorSMM10pre_commitEPNS_9TrxHandleEP14wsrep_trx_meta+0x69)[0x7f6933b7a4f9]
/usr/lib64/galera/libgalera_smm.so(galera_pre_commit+0x170)[0x7f6933b90180]
/usr/sbin/mysqld(_Z22wsrep_run_wsrep_commitP3THDP10handlertonb+0x9a2)[0x7f694ad4cce2]
/usr/sbin/mysqld(+0x49690b)[0x7f694ad4d90b]
/usr/sbin/mysqld(_Z15ha_commit_transP3THDb+0x1a6)[0x7f694adadae6]
/usr/sbin/mysqld(_Z12trans_commitP3THD+0x69)[0x7f694ad22e19]
/usr/sbin/mysqld(_Z21mysql_execute_commandP3THD+0x1112)[0x7f694ac5a7a2]
/usr/sbin/mysqld(_Z11mysql_parseP3THDPcjP12Parser_state+0x144)[0x7f694ac614c4]
/usr/sbin/mysqld(+0x3aa5f9)[0x7f694ac615f9]
/usr/sbin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x18d0)[0x7f694ac63520]
/usr/sbin/mysq...