250331 1:35:49 [ERROR] mysqld got signal 11 ; Sorry, we probably made a mistake, and this is a bug. Your assistance in bug reporting will enable us to fix this for the next release. To report this bug, see https://mariadb.com/kb/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: 11.2.6-MariaDB-ubu2204-log source revision: 67c0fd2a41034eae1ea04b81cace6a154783aedd key_buffer_size=134217728 read_buffer_size=131072 max_used_connections=788 max_threads=802 thread_count=50 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 1897813 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. Thread pointer: 0x7578401bbca8 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 = 0x75dbc8184000 thread_stack 0x49000 2025-03-31 1:35:58 0 [Note] /usr/sbin/mariadbd (initiated by: unknown): Normal shutdown 2025-03-31 1:35:58 300668 [Warning] Sort aborted, host: 10.13.13.31, user: xp1, thread: 300668, query: SELECT evt.evt_id, evt.stwfsta_id, evt.evttempl_id, stevttyp_id, evt_refid, evt_aangemaaktdoortaakid, evt_nextretry, msttmpl_id, evt_node FROM event evt INNER JOIN stam_workflowstatus stat ON evt.stwfsta_id=stat.stwfsta_id WHERE stat.stwfsta_iseindstatus=0 AND IFNULL(evt.evt_nextretry, NOW()) <= NOW() and not exists (select taakrun_id from taakrun inner join taak taakr on taakr.taak_id=taakrun.taak_id where taakr.evt_id=0) and not exists (select taakrun_id from taakrun inner join taak taakr on taakr.taak_id=taakrun.taak_id inner join taak taak2 on taak2.ovr_id=taakr.ovr_id where taak2.evt_id=0) ORDER BY evttempl_id ASC, evt_id DESC /usr/sbin/mariadbd(my_print_stacktrace+0x32)[0x571467cc15a2] /usr/sbin/mariadbd(handle_fatal_signal+0x478)[0x57146777b3d8] /lib/x86_64-linux-gnu/libc.so.6(+0x42520)[0x75dbc9e42520] 2025-03-31 1:36:18 0 [Warning] /usr/sbin/mariadbd: Thread 330365 (user : 'JBroekgaarden') did not exit /usr/sbin/mariadbd(_ZN19Table_triggers_list16mark_fields_usedE14trg_event_type+0x165)[0x5714675c18d5] /usr/sbin/mariadbd(_ZN5TABLE30mark_columns_needed_for_updateEv+0x2e)[0x5714675f607e] /usr/sbin/mariadbd(_ZN12multi_update20prepare_to_read_rowsEv+0x2c)[0x5714675d7f4c] /usr/sbin/mariadbd(_ZN4JOIN14optimize_innerEv+0x1880)[0x5714675717d0] /usr/sbin/mariadbd(_ZN4JOIN8optimizeEv+0xda)[0x571467571a8a] /usr/sbin/mariadbd(_ZN11Sql_cmd_dml13execute_innerEP3THD+0x2e)[0x571467573d2e] /usr/sbin/mariadbd(_ZN14Sql_cmd_update13execute_innerEP3THD+0x57)[0x5714675ddc77] /usr/sbin/mariadbd(_ZN11Sql_cmd_dml7executeEP3THD+0xc3)[0x57146752a813] /usr/sbin/mariadbd(_Z21mysql_execute_commandP3THDb+0x449e)[0x5714674f2a1e] /usr/sbin/mariadbd(_Z11mysql_parseP3THDPcjP12Parser_state+0x1e7)[0x5714674f3aa7] /usr/sbin/mariadbd(_Z16dispatch_command19enum_server_commandP3THDPcjb+0xee5)[0x5714674f5c85] /usr/sbin/mariadbd(_Z10do_commandP3THDb+0x143)[0x5714674f81e3] /usr/sbin/mariadbd(_Z24do_handle_one_connectionP7CONNECTb+0x39d)[0x57146762711d] /usr/sbin/mariadbd(handle_one_connection+0x5d)[0x57146762746d] /usr/sbin/mariadbd(+0xd444a6)[0x5714679c24a6] /lib/x86_64-linux-gnu/libc.so.6(+0x94ac3)[0x75dbc9e94ac3] nptl/pthread_create.c:442(start_thread)[0x75dbc9f26850] Trying to get some variables. Some pointers may be invalid and cause the dump to abort. Query (0x757840011b20): update uitdeclaratie inner join uitregel on uitregel.uitrgl_id=uitdeclaratie.uitrgl_id set uitdeclaratie.uitdecl_referentie=uitdeclaratie.uitrgl_id where uitregel.taak_id=43993956 Connection ID (thread ID): 330365 Status: KILL_SERVER 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=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=on,not_null_range_scan=off,hash_join_cardinality=on,cset_narrowing=off The manual page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mariadbd/ contains information that should help you find out what is causing the crash. Writing a core file... Working directory at /intel1/mydata/data Resource Limits: Limit Soft Limit Hard Limit Units Max cpu time unlimited unlimited seconds Max file size unlimited unlimited bytes Max data size unlimited unlimited bytes Max stack size 8388608 unlimited bytes Max core file size 0 unlimited bytes Max resident set unlimited unlimited bytes Max processes 2062202 2062202 processes Max open files 100000 100000 files Max locked memory 524288 524288 bytes Max address space unlimited unlimited bytes Max file locks unlimited unlimited locks Max pending signals 2062202 2062202 signals Max msgqueue size 819200 819200 bytes Max nice priority 0 0 2025-03-30 18:46:13 331052 [Warning] Aborted connection 331052 to db: 'zoo3' user: 'JBroekgaarden' host: '10.13.13.8' (Got timeout reading communication packets) 2025-03-30 19:01:10 331059 [Warning] Aborted connection 331059 to db: 'zoo3' user: 'JBroekgaarden' host: '10.13.13.8' (Got timeout reading communication packets) 2025-03-30 21:31:09 331190 [Warning] Aborted connection 331190 to db: 'zoo3' user: 'zooblue' host: '10.13.13.3' (Got timeout reading communication packets) 2025-03-30 21:31:09 331193 [Warning] Aborted connection 331193 to db: 'zoo3' user: 'zooblue' host: '10.13.13.3' (Got timeout reading communication packets) 2025-03-30 21:31:09 331191 [Warning] Aborted connection 331191 to db: 'zoo3' user: 'zooblue' host: '10.13.13.3' (Got timeout reading communication packets) 2025-03-30 22:00:56 331912 [Warning] Aborted connection 331912 to db: 'zoo3' user: 'zooblue' host: '10.13.13.3' (Got timeout reading communication packets) 2025-03-30 22:01:08 331921 [Warning] Aborted connection 331921 to db: 'zoo3' user: 'zooblue' host: '10.13.13.3' (Got timeout reading communication packets) 2025-03-30 22:01:44 331923 [Warning] Aborted connection 331923 to db: 'zoo3' user: 'zooblue' host: '10.13.13.3' (Got timeout reading communication packets) 2025-03-30 22:01:44 331974 [Warning] Aborted connection 331974 to db: 'zoo3' user: 'zooblue' host: '10.13.13.3' (Got timeout reading communication packets) 2025-03-30 22:24:32 332178 [Warning] Aborted connection 332178 to db: 'zoo3' user: 'zooblue' host: '10.13.13.3' (Got timeout reading communication packets) 2025-03-30 22:24:32 332180 [Warning] Aborted connection 332180 to db: 'zoo3' user: 'zooblue' host: '10.13.13.3' (Got timeout reading communication packets) 2025-03-30 22:24:32 332165 [Warning] Aborted connection 332165 to db: 'zoo3' user: 'zooblue' host: '10.13.13.3' (Got timeout reading communication packets) 2025-03-31 0:32:27 332602 [Warning] Aborted connection 332602 to db: 'zoo3' user: 'lgraat' host: '10.13.13.8' (Got timeout reading communication packets) 2025-03-31 0:32:32 332601 [Warning] Aborted connection 332601 to db: 'zoo3' user: 'lgraat' host: '10.13.13.8' (Got timeout reading communication packets) 2025-03-31 0:32:36 332603 [Warning] Aborted connection 332603 to db: 'zoo3' user: 'lgraat' host: '10.13.13.8' (Got timeout reading communication packets) 2025-03-31 0:32:36 332606 [Warning] Aborted connection 332606 to db: 'zoo3' user: 'lgraat' host: '10.13.13.8' (Got timeout reading communication packets) 2025-03-31 0:33:08 332600 [Warning] Aborted connection 332600 to db: 'zoo3' user: 'lgraat' host: '10.13.13.8' (Got timeout reading communication packets) 2025-03-31 1:34:58 332241 [Warning] Aborted connection 332241 to db: 'zoo3' user: 'xp1' host: '10.13.13.31' (Got timeout reading communication packets) 250331 1:35:49 [ERROR] mysqld got signal 11 ; Sorry, we probably made a mistake, and this is a bug. Your assistance in bug reporting will enable us to fix this for the next release. To report this bug, see https://mariadb.com/kb/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: 11.2.6-MariaDB-ubu2204-log source revision: 67c0fd2a41034eae1ea04b81cace6a154783aedd key_buffer_size=134217728 read_buffer_size=131072 max_used_connections=788 max_threads=802 thread_count=50 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 1897813 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. Thread pointer: 0x7578401bbca8 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 = 0x75dbc8184000 thread_stack 0x49000 2025-03-31 1:35:58 0 [Note] /usr/sbin/mariadbd (initiated by: unknown): Normal shutdown 2025-03-31 1:35:58 300668 [Warning] Sort aborted, host: 10.13.13.31, user: xp1, thread: 300668, query: SELECT evt.evt_id, evt.stwfsta_id, evt.evttempl_id, stevttyp_id, evt_refid, evt_aangemaaktdoortaakid, evt_nextretry, msttmpl_id, evt_node FROM event evt INNER JOIN stam_workflowstatus stat ON evt.stwfsta_id=stat.stwfsta_id WHERE stat.stwfsta_iseindstatus =0 AND IFNULL(evt.evt_nextretry, NOW()) <= NOW() and not exists (select taakrun_id from taakrun inner join taak taakr on taakr.taak_id=taakrun.taak_id where taakr.evt_id=0) and not exists (select taakrun_id from taakrun inner join taak taakr on taakr.taak_id=taakrun.taak_id inner join taak taak2 on taak2.ovr_id=taakr.ovr_id where taak2.evt_id=0) ORDER BY evt templ_id ASC, evt_id DESC /usr/sbin/mariadbd(my_print_stacktrace+0x32)[0x571467cc15a2] /usr/sbin/mariadbd(handle_fatal_signal+0x478)[0x57146777b3d8] /lib/x86_64-linux-gnu/libc.so.6(+0x42520)[0x75dbc9e42520] 2025-03-31 1:36:18 0 [Warning] /usr/sbin/mariadbd: Thread 330365 (user : 'JBroekgaarden') did not exit /usr/sbin/mariadbd(_ZN19Table_triggers_list16mark_fields_usedE14trg_event_type+0x165)[0x5714675c18d5] /usr/sbin/mariadbd(_ZN5TABLE30mark_columns_needed_for_updateEv+0x2e)[0x5714675f607e] /usr/sbin/mariadbd(_ZN12multi_update20prepare_to_read_rowsEv+0x2c)[0x5714675d7f4c] /usr/sbin/mariadbd(_ZN4JOIN14optimize_innerEv+0x1880)[0x5714675717d0] /usr/sbin/mariadbd(_ZN4JOIN8optimizeEv+0xda)[0x571467571a8a] /usr/sbin/mariadbd(_ZN11Sql_cmd_dml13execute_innerEP3THD+0x2e)[0x571467573d2e] /usr/sbin/mariadbd(_ZN14Sql_cmd_update13execute_innerEP3THD+0x57)[0x5714675ddc77] /usr/sbin/mariadbd(_ZN11Sql_cmd_dml7executeEP3THD+0xc3)[0x57146752a813] /usr/sbin/mariadbd(_Z21mysql_execute_commandP3THDb+0x449e)[0x5714674f2a1e] /usr/sbin/mariadbd(_Z11mysql_parseP3THDPcjP12Parser_state+0x1e7)[0x5714674f3aa7] /usr/sbin/mariadbd(_Z16dispatch_command19enum_server_commandP3THDPcjb+0xee5)[0x5714674f5c85] /usr/sbin/mariadbd(_Z10do_commandP3THDb+0x143)[0x5714674f81e3] /usr/sbin/mariadbd(_Z24do_handle_one_connectionP7CONNECTb+0x39d)[0x57146762711d] /usr/sbin/mariadbd(handle_one_connection+0x5d)[0x57146762746d] /usr/sbin/mariadbd(+0xd444a6)[0x5714679c24a6] /lib/x86_64-linux-gnu/libc.so.6(+0x94ac3)[0x75dbc9e94ac3] nptl/pthread_create.c:442(start_thread)[0x75dbc9f26850] Trying to get some variables. Some pointers may be invalid and cause the dump to abort. Query (0x757840011b20): update uitdeclaratie inner join uitregel on uitregel.uitrgl_id=uitdeclaratie.uitrgl_id set uitdeclaratie.uitdecl_referentie=uitdeclaratie.uitrgl_id where u itregel.taak_id=43993956 Connection ID (thread ID): 330365 Status: KILL_SERVER 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_co ndition_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_bk a=on,optimize_join_buffer_size=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition _pushdown_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=on,not_null_range_scan=off,hash_join_cardinality=on,cset_narrowing=off The manual page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mariadbd/ contains information that should help you find out what is causing the crash. Writing a core file... Working directory at /intel1/mydata/data Resource Limits: Limit Soft Limit Hard Limit Units Max cpu time unlimited unlimited seconds Max file size unlimited unlimited bytes Max data size unlimited unlimited bytes Max stack size 8388608 unlimited bytes Max core file size 0 unlimited bytes Max resident set unlimited unlimited bytes Max processes 2062202 2062202 processes Max open files 100000 100000 files Max locked memory 524288 524288 bytes Max address space unlimited unlimited bytes Max file locks unlimited unlimited locks Max pending signals 2062202 2062202 signals Max msgqueue size 819200 819200 bytes Max nice priority 0 0 Max realtime priority 0 0 Max realtime timeout unlimited unlimited us Core pattern: |/usr/share/apport/apport -p%p -s%s -c%c -d%d -P%P -u%u -g%g -- %E Kernel version: Linux version 6.8.0-51-generic (buildd@lcy02-amd64-057) (x86_64-linux-gnu-gcc-12 (Ubuntu 12.3.0-1ubuntu1~22.04) 12.3.0, GNU ld (GNU Binutils for Ubuntu) 2.38) #52~2 2.04.1-Ubuntu SMP PREEMPT_DYNAMIC Mon Dec 9 15:00:52 UTC 2 2025-03-31 1:42:59 0 [Note] Starting MariaDB 11.2.6-MariaDB-ubu2204-log source revision 67c0fd2a41034eae1ea04b81cace6a154783aedd server_uid h6cBr1lzKErgo1NqIP0o7tE8zvA= as process 796483