Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Cannot Reproduce
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10.1.9
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Linux
Description
This looks a bit similar to MDEV-9040 and friends as it also happens in the/a purge thread, but crashes in a different way.
The crashing system is a slave to a 5.1.42 master, a MariaDB 10.0.15 slave to the same master works without problems.
Thread backtrace shows that the actual crash happend on free(), so earlier memory corruption seems to be the cause:
#0 0x00007f6ca2ee0f8c in pthread_kill () from /lib/x86_64-linux-gnu/libpthread.so.0
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#1 0x0000000000760dc1 in handle_fatal_signal (sig=11) at /home/buildbot/buildbot/build/sql/signal_handler.cc:273
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#2 <signal handler called>
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#3 0x00007f6ca28b6496 in ?? () from /usr/lib/libjemalloc.so.1
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#4 0x00007f6ca28b77f7 in ?? () from /usr/lib/libjemalloc.so.1
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#5 0x00007f6ca28b7b9b in ?? () from /usr/lib/libjemalloc.so.1
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#6 0x00007f6ca28b4132 in free () from /usr/lib/libjemalloc.so.1
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#7 0x0000000000955f65 in mem_area_free (ptr=0x7f6c2d81e100, pool=0x7f6ca0d40400) at /home/buildbot/buildbot/build/storage/xtradb/mem/mem0pool.cc:519
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#8 0x000000000095579f in mem_heap_block_free (heap=0x7f6c2d81e100, block=0x7f6c2d81e100) at /home/buildbot/buildbot/build/storage/xtradb/mem/mem0mem.cc:521
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#9 0x00000000009b11b2 in row_purge (thr=<optimized out>, undo_rec=<optimized out>, node=<optimized out>) at /home/buildbot/buildbot/build/storage/xtradb/include/mem0mem.ic:510
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#10 row_purge_step (thr=0x7f6ca0c16f30) at /home/buildbot/buildbot/build/storage/xtradb/row/row0purge.cc:992
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#11 0x000000000097c2d4 in que_thr_step (thr=<optimized out>) at /home/buildbot/buildbot/build/storage/xtradb/que/que0que.cc:1089
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#12 que_run_threads_low (thr=<optimized out>) at /home/buildbot/buildbot/build/storage/xtradb/que/que0que.cc:1151
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#13 que_run_threads (thr=0x7f6ca0c16f30) at /home/buildbot/buildbot/build/storage/xtradb/que/que0que.cc:1192
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#14 0x00000000009de384 in trx_purge (n_purge_threads=12155, batch_size=300, truncate=false) at /home/buildbot/buildbot/build/storage/xtradb/trx/trx0purge.cc:1251
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#15 0x00000000009c6d67 in srv_do_purge (n_threads=1, n_total_purged=0x7f6c2e7fde78) at /home/buildbot/buildbot/build/storage/xtradb/srv/srv0srv.cc:3436
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#16 0x00000000009cd80a in srv_purge_coordinator_thread (arg=<optimized out>) at /home/buildbot/buildbot/build/storage/xtradb/srv/srv0srv.cc:3622
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#17 0x00007f6ca2edbe9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
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#18 0x00007f6ca1bac38d in clone () from /lib/x86_64-linux-gnu/libc.so.6
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#19 0x0000000000000000 in ?? ()
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