cat /var/log/mysql/error.log 2022-11-07 20:35:06 0 [Note] InnoDB: Compressed tables use zlib 1.2.11 2022-11-07 20:35:06 0 [Note] InnoDB: Number of transaction pools: 1 2022-11-07 20:35:06 0 [Note] InnoDB: Using crc32 + pclmulqdq instructions 2022-11-07 20:35:06 0 [Note] InnoDB: Using Linux native AIO 2022-11-07 20:35:06 0 [Note] InnoDB: Initializing buffer pool, total size = 128.000MiB, chunk size = 2.000MiB 2022-11-07 20:35:06 0 [Note] InnoDB: Completed initialization of buffer pool 2022-11-07 20:35:06 0 [Note] InnoDB: Buffered log writes (block size=512 bytes) 2022-11-07 20:35:06 0 [Note] InnoDB: 128 rollback segments are active. 2022-11-07 20:35:06 0 [Note] InnoDB: Setting file './ibtmp1' size to 12.000MiB. Physically writing the file full; Please wait ... 2022-11-07 20:35:06 0 [Note] InnoDB: File './ibtmp1' size is now 12.000MiB. 2022-11-07 20:35:06 0 [Note] InnoDB: log sequence number 46590; transaction id 14 2022-11-07 20:35:06 0 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool 2022-11-07 20:35:06 0 [Note] Plugin 'FEEDBACK' is disabled. 2022-11-07 20:35:06 0 [Note] InnoDB: Buffer pool(s) load completed at 221107 20:35:06 2022-11-07 20:35:06 0 [Warning] You need to use --log-bin to make --expire-logs-days or --binlog-expire-logs-seconds work. 2022-11-07 20:35:06 0 [Note] Server socket created on IP: '127.0.0.1'. 2022-11-07 20:35:06 0 [Note] /usr/sbin/mariadbd: ready for connections. Version: '10.9.3-MariaDB-1:10.9.3+maria~deb10-log' socket: '/run/mysqld/mysqld.sock' port: 3306 mariadb.org binary distribution 221107 20:41:50 [ERROR] mysqld got signal 8 ; 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 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: 10.9.3-MariaDB-1:10.9.3+maria~deb10-log key_buffer_size=134217728 read_buffer_size=131072 max_used_connections=3 max_threads=153 thread_count=0 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 468006 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. Thread pointer: 0x0 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 = 0x0 thread_stack 0x49000 /usr/sbin/mariadbd(my_print_stacktrace+0x2e)[0x5610ab644c4e] /usr/sbin/mariadbd(handle_fatal_signal+0x485)[0x5610ab13e5a5] ??:0(__restore_rt)[0x7f11b9c06730] time/difftime.c:114(__difftime)[0x7f11b97db1e4] /usr/sbin/mariadbd(+0xd9fba1)[0x5610ab4d1ba1] /usr/sbin/mariadbd(_ZN5tpool19thread_pool_generic13timer_generic7executeEPv+0x38)[0x5610ab5d9178] srv/srv0srv.cc:1194(srv_monitor)[0x5610ab5d9e0b] tpool/tpool_generic.cc:345(tpool::thread_pool_generic::timer_generic::execute(void*))[0x5610ab5d7a0f] ??:0(std::error_code::default_error_condition() const)[0x7f11b9b26b2f] nptl/pthread_create.c:487(start_thread)[0x7f11b9bfbfa3] x86_64/clone.S:97(clone)[0x7f11b981f06f] The manual page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mysqld/ contains information that should help you find out what is causing the crash. Writing a core file... Working directory at /var/lib/mysql 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 unlimited unlimited bytes Max resident set unlimited unlimited bytes Max processes 62987 62987 processes Max open files 32768 32768 files Max locked memory 65536 65536 bytes Max address space unlimited unlimited bytes Max file locks unlimited unlimited locks Max pending signals 257334 257334 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: core Kernel version: Linux version 4.19.0 (mockbuild@builder9.eng.sw.ru) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-44) (GCC) ) #1 SMP Tue Jan 25 12:49:12 MSK 2022 2022-11-07 20:41:58 0 [Note] InnoDB: Compressed tables use zlib 1.2.11 2022-11-07 20:41:58 0 [Note] InnoDB: Number of transaction pools: 1 2022-11-07 20:41:58 0 [Note] InnoDB: Using crc32 + pclmulqdq instructions 2022-11-07 20:41:58 0 [Note] InnoDB: Using Linux native AIO 2022-11-07 20:41:58 0 [Note] InnoDB: Initializing buffer pool, total size = 128.000MiB, chunk size = 2.000MiB 2022-11-07 20:41:58 0 [Note] InnoDB: Completed initialization of buffer pool 2022-11-07 20:41:58 0 [Note] InnoDB: Buffered log writes (block size=512 bytes) 2022-11-07 20:41:58 0 [Note] InnoDB: Starting crash recovery from checkpoint LSN=2136600114 2022-11-07 20:41:59 0 [Note] InnoDB: Starting final batch to recover 821 pages from redo log. 2022-11-07 20:41:59 0 [Note] InnoDB: 128 rollback segments are active. 2022-11-07 20:41:59 0 [Note] InnoDB: Removed temporary tablespace data file: "./ibtmp1" 2022-11-07 20:41:59 0 [Note] InnoDB: Setting file './ibtmp1' size to 12.000MiB. Physically writing the file full; Please wait ... 2022-11-07 20:41:59 0 [Note] InnoDB: File './ibtmp1' size is now 12.000MiB. 2022-11-07 20:41:59 0 [Note] InnoDB: log sequence number 2146584861; transaction id 4069 2022-11-07 20:41:59 0 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool 2022-11-07 20:41:59 0 [Note] Plugin 'FEEDBACK' is disabled. 2022-11-07 20:41:59 0 [Note] InnoDB: Buffer pool(s) load completed at 221107 20:41:59 2022-11-07 20:41:59 0 [Warning] You need to use --log-bin to make --expire-logs-days or --binlog-expire-logs-seconds work. 2022-11-07 20:41:59 0 [Note] Server socket created on IP: '127.0.0.1'. 2022-11-07 20:41:59 0 [Note] /usr/sbin/mariadbd: ready for connections. Version: '10.9.3-MariaDB-1:10.9.3+maria~deb10-log' socket: '/run/mysqld/mysqld.sock' port: 3306 mariadb.org binary distribution