Details
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Bug
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Status: Closed (View Workflow)
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Blocker
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Resolution: Fixed
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10.5.16, 10.6.8, 10.7.4, 10.8.3, 10.9.1, 10.10
Description
This following bug was observed:
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preview-10.10-MDEV-16329-online-alter 10.10.0 d7a7d16713070c7c2902c3df4b4f6d024cd0320f (Optimized) |
Core was generated by `/test/online-alter_MD080622-mariadb-10.10.0-linux-x86_64-opt/bin/mysqld --no-de'.
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Program terminated with signal SIGSEGV, Segmentation fault.
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#0 buf_flush_LRU_list_batch (n=<synthetic pointer>, n=<synthetic pointer>,
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max=1536)
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at /test/preview-10.10-MDEV-16329-online-alter_opt/storage/innobase/buf/buf0flu.cc:1280
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1280 buf_page_t *prev= UT_LIST_GET_PREV(LRU, bpage);
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[Current thread is 1 (Thread 0x14ac32811700 (LWP 3928898))]
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(gdb) bt
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#0 buf_flush_LRU_list_batch (n=<synthetic pointer>, n=<synthetic pointer>, max=1536) at /test/preview-10.10-MDEV-16329-online-alter_opt/storage/innobase/buf/buf0flu.cc:1280
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#1 buf_do_LRU_batch (max=1536) at /test/preview-10.10-MDEV-16329-online-alter_opt/storage/innobase/buf/buf0flu.cc:1374
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#2 buf_flush_LRU (max_n=1536) at /test/preview-10.10-MDEV-16329-online-alter_opt/storage/innobase/buf/buf0flu.cc:1715
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#3 0x00005563ba5a8f23 in buf_pool_t::withdraw_blocks (this=this@entry=0x5563bb708440 <buf_pool>) at /usr/include/c++/9/bits/stl_algobase.h:222
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#4 0x00005563bad0512d in buf_pool_t::resize (this=this@entry=0x5563bb708440 <buf_pool>) at /test/preview-10.10-MDEV-16329-online-alter_opt/storage/innobase/include/buf0buf.h:1546
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#5 0x00005563bad0321c in buf_resize_callback () at /test/preview-10.10-MDEV-16329-online-alter_opt/storage/innobase/buf/buf0buf.cc:1972
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#6 0x00005563bad9d019 in tpool::task_group::execute (this=0x5563bc006c20 <single_threaded_group>, t=0x5563bc006b80 <buf_resize_task>) at /test/preview-10.10-MDEV-16329-online-alter_opt/tpool/task_group.cc:55
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#7 0x00005563bad9bda7 in tpool::thread_pool_generic::worker_main (this=0x5563bcb26740, thread_var=0x5563bcb36260) at /test/preview-10.10-MDEV-16329-online-alter_opt/tpool/tpool_generic.cc:588
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#8 0x000014ac55999de4 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
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#9 0x000014ac55ab3609 in start_thread (arg=<optimized out>) at pthread_create.c:477
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#10 0x000014ac5569f133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
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However, all attempts at reproduction have so far failed. This ticket in the hope that there is sufficient information to find the issue.
Added all threads bt (gdb_threads.txt) and all threads full bt (gdb_full.txt).
Also added full original SQL but it is 18k lines (and does not reproduce as mentioned)
And linking with MDEV-26662 given the stack.
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