230404 5:52:35 [ERROR] mysqld got signal 6 ;
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This could be because you hit a bug. It is also possible that this binary
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or one of the libraries it was linked against is corrupt, improperly built,
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or misconfigured. This error can also be caused by malfunctioning hardware.
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To report this bug, see https://mariadb.com/kb/en/reporting-bugs
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We will try our best to scrape up some info that will hopefully help
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diagnose the problem, but since we have already crashed,
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something is definitely wrong and this may fail.
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Server version: 10.5.20-MariaDB-debug-log source revision: 3261a78ea172a77fec113107ef35f218b9228b66
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key_buffer_size=1048576
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read_buffer_size=131072
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max_used_connections=4
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max_threads=153
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thread_count=0
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It is possible that mysqld could use up to
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key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 63762 K bytes of memory
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Hope that's ok; if not, decrease some variables in the equation.
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Thread pointer: 0x0
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Attempting backtrace. You can use the following information to find out
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where mysqld died. If you see no messages after this, something went
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terribly wrong...
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stack_bottom = 0x0 thread_stack 0x100000
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mysys/my_addr_resolve.c:300(my_addr_resolve)[0x7c0e6b]
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include/buf0types.h:159(buf_pool_t::insert_into_flush_list(buf_block_t*, unsigned long))[0x278929e]
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/buildbot/amd64-ubuntu-1804-clang10-asan/build/sql/mariadbd(handle_fatal_signal+0x662)[0x125d802]
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/lib/x86_64-linux-gnu/libpthread.so.0(+0x12980)[0x7fce997fb980]
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mysys/hash.c:801(my_hash_iterate)[0x2719d55]
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mysys/thr_mutex.c:663(safe_mutex_free_deadlock_data)[0x2798a59]
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mysys/thr_mutex.c:610(safe_mutex_destroy)[0x279881a]
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/buildbot/amd64-ubuntu-1804-clang10-asan/build/sql/mariadbd(lf_alloc_destroy+0xad)[0x27a256d]
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mysys/lf_hash.cc:395(lf_hash_destroy)[0x27a39c2]
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psi/mysql_thread.h:717(inline_mysql_mutex_destroy(st_mysql_mutex*, char const*, unsigned int))[0x10cb185]
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sql/mysqld.cc:2002(clean_up(bool))[0x836a6c]
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sql/mysqld.cc:5731(mysqld_main(int, char**))[0x83d89f]
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/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7)[0x7fce98a6cbf7]
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/buildbot/amd64-ubuntu-1804-clang10-asan/build/sql/mariadbd(_start+0x2a)[0x789e4a]
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The manual page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mysqld/ contains
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information that should help you find out what is causing the crash.
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Writing a core file...
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Working directory at /dev/shm/var_auto_W4J1/13/mysqld.2/data
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Resource Limits:
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Limit Soft Limit Hard Limit Units
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Max cpu time unlimited unlimited seconds
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Max file size unlimited unlimited bytes
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Max data size unlimited unlimited bytes
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Max stack size 8388608 unlimited bytes
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Max core file size unlimited unlimited bytes
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Max resident set unlimited unlimited bytes
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Max processes unlimited unlimited processes
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Max open files 1024 1024 files
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Max locked memory 51200000 51200000 bytes
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Max address space unlimited unlimited bytes
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Max file locks unlimited unlimited locks
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Max pending signals 63857 63857 signals
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Max msgqueue size 819200 819200 bytes
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Max nice priority 0 0
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Max realtime priority 0 0
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Max realtime timeout unlimited unlimited us
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Core pattern: core
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Kernel version: Linux version 5.8.0-0.bpo.2-amd64 (debian-kernel@lists.debian.org) (gcc-8 (Debian 8.3.0-6) 8.3.0, GNU ld (GNU Binutils for Debian) 2.31.1) #1 SMP Debian 5.8.10-1~bpo10+1 (2020-09-26)
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core.gz