2023-05-19 12:10:33 0x7f2aa0fbd700  InnoDB: Assertion failure in file /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.4.15/extra/mariabackup/xtrabackup.cc line 660

InnoDB: Failing assertion: opt_no_lock

InnoDB: We intentionally generate a memory trap.

InnoDB: Submit a detailed bug report to https://jira.mariadb.org/

InnoDB: If you get repeated assertion failures or crashes, even

InnoDB: immediately after the mysqld startup, there may be

InnoDB: corruption in the InnoDB tablespace. Please refer to

InnoDB: https://mariadb.com/kb/en/library/innodb-recovery-modes/

InnoDB: about forcing recovery.

230519 12:10:33 [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 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: 10.4.15-MariaDB

key_buffer_size=0

read_buffer_size=131072

max_used_connections=0

max_threads=1

thread_count=0

It is possible that mysqld could use up to

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 5933 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

/bin/mariabackup(my_print_stacktrace+0x2e)[0x560ff405327e]

/bin/mariabackup(handle_fatal_signal+0x54d)[0x560ff3bb5ced]

sigaction.c:0(__restore_rt)[0x7f2aa5228dd0]

:0(__GI_raise)[0x7f2aa32e799f]

:0(__GI_abort)[0x7f2aa32d1cf5]

/bin/mariabackup(+0x5cf739)[0x560ff382d739]

/bin/mariabackup(+0x581c3f)[0x560ff37dfc3f]

/bin/mariabackup(+0xb7b7b8)[0x560ff3dd97b8]

/bin/mariabackup(+0xb7ecd6)[0x560ff3ddccd6]

/bin/mariabackup(+0xb7eed4)[0x560ff3ddced4]

/bin/mariabackup(+0x5fcc17)[0x560ff385ac17]

/bin/mariabackup(+0x5fd000)[0x560ff385b000]

pthread_create.c:0(start_thread)[0x7f2aa521e2de]

:0(__GI___clone)[0x7f2aa33ac4b3]

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             755424               755424               processes

Max open files            16384                16384                files

Max locked memory         16777216             16777216             bytes

Max address space         unlimited            unlimited            bytes

Max file locks            unlimited            unlimited            locks

Max pending signals       755424               755424               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/lib/systemd/systemd-coredump %P %u %g %s %t %c %h %e

/etc/script/daily_db_backup_2021.sh: line 40: 885093 Aborted                 (core dumped)