Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Fixed
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10.4.31
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None
Description
On centos7-bintar in buildbot, the test case binlog_encryption.rpl_special_charset crashes during server exit inside the stack unwinding in pthread_exit():
Thread 1 (Thread 0x7ff1fa7fc700 (LWP 72336)):
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#0 0x00007ff21f00caa1 in pthread_kill () from /lib64/libpthread.so.0
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#1 0x000055eb81142eae in handle_fatal_signal (sig=6) at /home/buildbot/knielsen/mariadb-10.4.32/sql/signal_handler.cc:372
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#2 <signal handler called>
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#3 0x00007ff21e436387 in raise () from /lib64/libc.so.6
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#4 0x00007ff21e437a78 in abort () from /lib64/libc.so.6
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#5 0x000055eb818d03de in _Unwind_SetGR ()
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#6 0x000055eb81874628 in __gxx_personality_v0 ()
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#7 0x00007ff21bc0f9f4 in ?? () from /lib64/libgcc_s.so.1
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#8 0x00007ff21bc0fd44 in _Unwind_ForcedUnwind () from /lib64/libgcc_s.so.1
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#9 0x00007ff21f00e362 in __pthread_unwind () from /lib64/libpthread.so.0
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#10 0x00007ff21f008ef7 in pthread_exit () from /lib64/libpthread.so.0
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#11 0x000055eb80e39d05 in os_thread_exit (detach=detach@entry=true) at /home/buildbot/knielsen/mariadb-10.4.32/storage/innobase/os/os0thread.cc:199
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#12 0x000055eb815ad871 in btr_defragment_thread () at /home/buildbot/knielsen/mariadb-10.4.32/storage/innobase/btr/btr0defragment.cc:801
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#13 0x00007ff21f007ea5 in start_thread () from /lib64/libpthread.so.0
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#14 0x00007ff21e4feb0d in clone () from /lib64/libc.so.6
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The problem is that the unwind code gets an invalid register number and asserts.
The build is made with static linking of some system libraries:
cmake . -DWITH_READLINE=1 -DBUILD_CONFIG=mysql_release -DCMAKE_C_FLAGS="-static-libgcc -static-libstdc++ -DGNUTLS_NO_SIGNAL=0" -DCMAKE_CXX_FLAGS="-static-libgcc -static-libstdc++ -DGNUTLS_NO_SIGNAL=0" -DWITH_SSL=bundled -DPLATFORM=linux-systemd && make -j10 package
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Removing the two flags -static-libgcc and -static-libstdc++ makes the problem go away.
It seems problematic to link a few system libraries static like this. I suggest to remove those options.
Exact commands to reproduce:
ssh bb-amd64.mariadb.org
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docker run -it --user root quay.io/mariadb-foundation/bb-worker:centos7-bintar bash
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su - buildbot
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wget https://ci.mariadb.org/38760/mariadb-10.4.32.tar.gz
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tar xf mariadb-10.4.32.tar.gz
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cd mariadb-10.4.32
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cmake . -DWITH_READLINE=1 -DBUILD_CONFIG=mysql_release -DCMAKE_C_FLAGS="-static-libgcc -static-libstdc++ -DGNUTLS_NO_SIGNAL=0" -DCMAKE_CXX_FLAGS="-static-libgcc -static-libstdc++ -DGNUTLS_NO_SIGNAL=0" -DWITH_SSL=bundled -DPLATFORM=linux-systemd && make -j10
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(cd mysql-test/ && perl mysql-test-run.pl --mysqld=--binlog-format=mixed binlog_encryption.rpl_special_charset)
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