140502 16:24:24 [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: 10.0.10-MariaDB key_buffer_size=16384 read_buffer_size=131072 max_used_connections=29 max_threads=258 thread_count=28 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 566746 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. Thread pointer: 0x0x7fa20c37e008 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 = 0x7fa21e89de58 thread_stack 0x48000 /usr/bin/mysqld(my_print_stacktrace+0x2e)[0xb7c48e] /usr/bin/mysqld(handle_fatal_signal+0x335)[0x7025d5] /usr/lib/libpthread.so.0(+0xf4b0)[0x7fa22001b4b0] /usr/bin/mysqld[0x964080] /usr/bin/mysqld[0x956ade] /usr/bin/mysqld[0x9570c1] /usr/bin/mysqld[0x964c6f] /usr/bin/mysqld[0x8e5dd1] /usr/bin/mysqld[0x8e648f] /usr/bin/mysqld[0x8e6aac] /usr/bin/mysqld[0x8f1699] /usr/bin/mysqld[0x8586be] /usr/bin/mysqld(_ZN7handler12ha_write_rowEPh+0xb5)[0x70b765] /usr/bin/mysqld(_Z12write_recordP3THDP5TABLEP12st_copy_info+0x6f)[0x5980ef] /usr/bin/mysqld(_Z12mysql_insertP3THDP10TABLE_LISTR4ListI4ItemERS3_IS5_ES6_S6_15enum_duplicatesb+0xe5a)[0x59b91a] /usr/bin/mysqld(_Z21mysql_execute_commandP3THD+0x2396)[0x5b1826] /usr/bin/mysqld(_ZN18Prepared_statement7executeEP6Stringb+0x4a5)[0x5c7c45] /usr/bin/mysqld(_ZN18Prepared_statement12execute_loopEP6StringbPhS2_+0x8a)[0x5c7d8a] /usr/bin/mysqld(_Z19mysqld_stmt_executeP3THDPcj+0x170)[0x5c8020] /usr/bin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x6c1)[0x5b78b1] /usr/bin/mysqld(_Z24do_handle_one_connectionP3THD+0x1c2)[0x675902] /usr/bin/mysqld(handle_one_connection+0x40)[0x675990] /usr/bin/mysqld[0xa54e7d] /usr/lib/libpthread.so.0(+0x7124)[0x7fa220013124] /usr/lib/libc.so.6(clone+0x6d)[0x7fa21eec14bd] Trying to get some variables. Some pointers may be invalid and cause the dump to abort. Query (0x7fa20b25d410): INSERT INTO PartTable (pimItemId, partTypeId, data, datasize, version, external) VALUES (?, ?, ?, ?, ?, ?) Connection ID (thread ID): 15 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=on,exists_to_in=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.