140324 17:53:12 [ERROR] mysqld got signal 6 ; 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-log key_buffer_size=134217728 read_buffer_size=131072 max_used_connections=1 max_threads=1026 thread_count=1 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 2381937 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. Thread pointer: 0x0x24a3b90 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 = 0x7fd0080a1d78 thread_stack 0x48000 /usr/local/mariadb-5.5.35/bin/mysqld(my_print_stacktrace+0x29)[0xa7a929] /usr/local/mariadb-5.5.35/bin/mysqld(handle_fatal_signal+0x40a)[0x6d26da] /lib64/libpthread.so.0[0x3b59c0f710] /lib64/libc.so.6(gsignal+0x35)[0x3b59832925] /lib64/libc.so.6(abort+0x175)[0x3b59834105] /lib64/libc.so.6[0x3b59870837] /lib64/libc.so.6[0x3b59876166] /lib64/libc.so.6[0x3b59879be4] /lib64/libc.so.6(__libc_malloc+0x71)[0x3b5987a991] /usr/lib64/libstdc++.so.6(_Znwm+0x1d)[0x3b5b8bd09d] /usr/local/mariadb-5.5.35/bin/mysqld(_ZN13QUERY_PROFILE10new_statusEPKcS1_S1_j+0x46)[0x64ce96] /usr/local/mariadb-5.5.35/bin/mysqld(set_thd_proc_info+0x34)[0x55c1b4] /usr/local/mariadb-5.5.35/bin/mysqld(_Z12mysql_selectP3THDPPP4ItemP10TABLE_LISTjR4ListIS1_ES2_jP8st_orderSB_S2_SB_yP13select_resultP18st_select_lex_unitP13st_select_lex+0x1f9)[0x5dc209] /usr/local/mariadb-5.5.35/bin/mysqld(_Z13handle_selectP3THDP3LEXP13select_resultm+0x2b4)[0x5dce14] /usr/local/mariadb-5.5.35/bin/mysqld(_Z21mysql_execute_commandP3THD+0x587f)[0x58ea7f] /usr/local/mariadb-5.5.35/bin/mysqld(_Z11mysql_parseP3THDPcjP12Parser_state+0x28a)[0x58effa] /usr/local/mariadb-5.5.35/bin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x14a8)[0x590558] /usr/local/mariadb-5.5.35/bin/mysqld(_Z24do_handle_one_connectionP3THD+0x3e0)[0x64b520] /usr/local/mariadb-5.5.35/bin/mysqld(handle_one_connection+0x4a)[0x64b5ca] /lib64/libpthread.so.0[0x3b59c079d1] /lib64/libc.so.6(clone+0x6d)[0x3b598e8b6d] Trying to get some variables. Some pointers may be invalid and cause the dump to abort. Query (0x7fcfd8004c18): is an invalid pointer Connection ID (thread ID): 1 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. 140324 17:53:12 mysqld_safe Number of processes running now: 0 140324 17:53:12 mysqld_safe mysqld restarted 140324 17:53:12 InnoDB: The InnoDB memory heap is disabled 140324 17:53:12 InnoDB: Mutexes and rw_locks use GCC atomic builtins 140324 17:53:12 InnoDB: Compressed tables use zlib 1.2.3 140324 17:53:12 InnoDB: Initializing buffer pool, size = 128.0M 140324 17:53:12 InnoDB: Completed initialization of buffer pool 140324 17:53:12 InnoDB: highest supported file format is Barracuda. InnoDB: The log sequence number in ibdata files does not match InnoDB: the log sequence number in the ib_logfiles! 140324 17:53:12 InnoDB: Database was not shut down normally! InnoDB: Starting crash recovery. InnoDB: Reading tablespace information from the .ibd files... InnoDB: Restoring possible half-written data pages from the doublewrite InnoDB: buffer... InnoDB: Last MySQL binlog file position 0 750278820, file name ./mysql-bin.000256 140324 17:53:12 InnoDB: Waiting for the background threads to start 140324 17:53:13 Percona XtraDB (http://www.percona.com) 5.5.35-MariaDB-33.0 started; log sequence number 8476219175 140324 17:53:13 [Note] Recovering after a crash using mysql-bin 140324 17:53:13 [Note] Starting crash recovery... 140324 17:53:13 [Note] Crash recovery finished. 140324 17:53:13 [Note] Server socket created on IP: '0.0.0.0'. 140324 17:53:13 [Warning] 'proxies_priv' entry '@ root@ad-node-4.beanonetwork.com' ignored in --skip-name-resolve mode. 140324 17:53:13 [Note] Event Scheduler: Loaded 0 events 140324 17:53:13 [Note] /usr/local/mariadb-5.5.35/bin/mysqld: ready for connections. Version: '5.5.35-MariaDB-log' socket: '/var/lib/mysql/mysql.sock' port: 3306 Source distribution