Details
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Bug
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Status: In Review (View Workflow)
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Critical
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Resolution: Unresolved
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10.11, 11.4, 11.8, 12.3, 13.0
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Can result in hang or crash
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Q2/2026 Server Development
Description
MDEV-14992 and related tickets intend to replace mariadb-backup --backup with a BACKUP SERVER statement.
For applying the log to a backup, the intention is to replace mariadb-backup --prepare with a special invocation of mariadbd that would exit right after applying the log. I just tested the simplest invocation that I could think about, but it would crash with SIGABRT:
mysql-test/mtr main.1st
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echo 'shutdown;'|
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sql/mariadbd --datadir $(pwd)/mysql-test/var/mysqld.1/data --bootstrap
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10.11 b66db0f23bd253bfdcd8f475b017d49f36d05d9f |
…
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2026-05-06 14:40:07 0 [Note] InnoDB: File './ibtmp1' size is now 12.000MiB.
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2026-05-06 14:40:07 0 [Note] InnoDB: log sequence number 52917 (memory-mapped); transaction id 16
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2026-05-06 14:40:07 0 [Note] InnoDB: Loading buffer pool(s) from /dev/shm/10.6/mysql-test/var/mysqld.1/data/ib_buffer_pool
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2026-05-06 14:40:07 0 [Note] InnoDB: Buffer pool(s) load completed at 260506 14:40:07
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2026-05-06 14:40:07 0 [Note] Plugin 'FEEDBACK' is disabled.
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terminate called without an active exception
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I debugged this with https://rr-project.org as follows:
mysql-test/mtr main.1st
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echo 'shutdown;'|
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_RR_TRACE_DIR=/dev/shm/rr rr record \
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sql/mariadbd --datadir $(pwd)/mysql-test/var/mysqld.1/data --bootstrap
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rr replay /dev/shm/rr/latest-trace
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10.11 b66db0f23bd253bfdcd8f475b017d49f36d05d9f |
…
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0x00007f5492897d40 in _start () from /lib64/ld-linux-x86-64.so.2
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(rr) continue
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Continuing.
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…
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Thread 1 received signal SIGABRT, Aborted.
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__pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=0x6, no_tid=no_tid@entry=0x0) at ./nptl/pthread_kill.c:44
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⚠️ warning: 44 ./nptl/pthread_kill.c: Tiedostoa tai hakemistoa ei ole
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(rr) backtrace
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#0 __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=0x6, no_tid=no_tid@entry=0x0) at ./nptl/pthread_kill.c:44
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#1 0x00007f5491a9fdbf in __pthread_kill_internal (threadid=<optimized out>, signo=0x6) at ./nptl/pthread_kill.c:89
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#2 0x00007f5491a48d02 in __GI_raise (sig=sig@entry=0x6) at ../sysdeps/posix/raise.c:26
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#3 0x00007f5491a304b2 in __GI_abort () at ./stdlib/abort.c:77
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#4 0x00007f5491ca9d0e in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
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#5 0x00007f5491cbd8da in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
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#6 0x00007f5491ca9889 in std::terminate() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
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#7 0x0000561b6f0533ce in std::__terminate () at /usr/include/x86_64-linux-gnu/c++/16/bits/c++config.h:358
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#8 std::thread::~thread (this=<optimized out>) at /usr/include/c++/16/bits/std_thread.h:184
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#9 0x0000561b6f0533db in mem_pressure::~mem_pressure (this=<optimized out>) at /mariadb/10.6/storage/innobase/buf/buf0buf.cc:832
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#10 0x00007f5491a4b3a1 in __run_exit_handlers (status=0x0, listp=0x7f5491bf1680 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=0x1, run_dtors=run_dtors@entry=0x1) at ./stdlib/exit.c:118
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#11 0x00007f5491a4b46c in __GI_exit (status=<optimized out>) at ./stdlib/exit.c:148
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#12 0x0000561b6e898359 in mysqld_main (argc=<optimized out>, argv=<optimized out>) at /mariadb/10.6/sql/mysqld.cc:6046
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#13 0x0000561b6e88c4f2 in main (argc=<optimized out>, argv=<optimized out>) at /mariadb/10.6/sql/main.cc:34
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Attachments
Issue Links
- is blocked by
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- In Review
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- relates to
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MDEV-14992 BACKUP SERVER to mounted file system
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- In Progress
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MDEV-24670 avoid OOM by linux kernel co-operative memory management
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- Closed
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- In Progress
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