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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10.2.2, 10.3.0, 10.2.12
Description
Crash happens on
CREATE TABLE SOME_TEMP_4994 (
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ID NUMERIC(38),
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IDSTR VARCHAR(1000),
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NAME NVARCHAR(1000),
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DATEHOUR DATETIME,
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VALUE NUMERIC(38,5),
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VALUE2 NUMERIC(38,5),
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VALUE3 NUMERIC(38,5));
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The gdb backtrace looks very similar to the one in upstream bug https://bugs.mysql.com/89126 which also has an analysis of a potential race condition and a proposed patch:
Thread 1 (Thread 0x7faf004ca700 (LWP 10407)):
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#0 0x00007faf48ed69b1 in pthread_kill () from /lib64/libpthread.so.0
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#1 0x000056364835a8da in handle_fatal_signal (sig=11) at /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.2.12/sql/signal_handler.cc:305
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#2 <signal handler called>
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#3 0x000056364871207a in dict_index_set_merge_threshold (index=index@entry=0x7faf141e9ec0, merge_threshold=merge_threshold@entry=50) at /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.2.12/storage/innobase/dict/dict0dict.cc:6186
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#4 0x0000563648530eb5 in innobase_parse_hint_from_comment (thd=<optimized out>, table=table@entry=0x7faf141eeec0, table_share=0x7faf004c5e50) at /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.2.12/storage/innobase/handler/ha_innodb.cc:12853
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#5 0x000056364853138d in create_table_info_t::create_table_update_dict (this=this@entry=0x7faf004c4b40) at /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.2.12/storage/innobase/handler/ha_innodb.cc:13341
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#6 0x0000563648547b47 in ha_innobase::create (this=<optimized out>, name=0x7faf004c77c0 "./some_db/SOME_TEMP_5571", form=<optimized out>, create_info=<optimized out>) at /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.2.12/storage/innobase/handler/ha_innodb.cc:13411
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#7 0x0000563648362568 in handler::ha_create (this=0x7faf14229a30, name=<optimized out>, form=form@entry=0x7faf004c50e0, info_arg=info_arg@entry=0x7faf004c7c40) at /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.2.12/sql/handler.cc:4369
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#8 0x0000563648362e3a in ha_create_table (thd=thd@entry=0x7faf1426f048, path=path@entry=0x7faf004c77c0 "./some_db/SOME_TEMP_5571", db=db@entry=0x7faf14365b90 "some_db", table_name=table_name@entry=0x7faf14365528 "SOME_TEMP_5571", create_info=create_info@entry=0x7faf004c7c40, frm=frm@entry=0x7faf004c77b0) at /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.2.12/sql/handler.cc:4740
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#9 0x000056364827f6ec in rea_create_table (thd=thd@entry=0x7faf1426f048, frm=frm@entry=0x7faf004c77b0, path=path@entry=0x7faf004c77c0 "./some_db/SOME_TEMP_5571", db=db@entry=0x7faf14365b90 "some_db", table_name=table_name@entry=0x7faf14365528 "SOME_TEMP_5571", create_info=create_info@entry=0x7faf004c7c40, file=file@entry=0x7faf14366a38, no_ha_create_table=no_ha_create_table@entry=false) at /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.2.12/sql/unireg.cc:419
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#10 0x000056364824e9dd in create_table_impl (thd=thd@entry=0x7faf1426f048, orig_db=orig_db@entry=0x7faf14365b90 "some_db", orig_table_name=orig_table_name@entry=0x7faf14365528 "SOME_TEMP_5571", db=db@entry=0x7faf14365b90 "some_db", table_name=table_name@entry=0x7faf14365528 "SOME_TEMP_5571", path=path@entry=0x7faf004c77c0 "./some_db/SOME_TEMP_5571", options=..., create_info=create_info@entry=0x7faf004c7c40, alter_info=alter_info@entry=0x7faf004c7b90, create_table_mode=create_table_mode@entry=0, is_trans=is_trans@entry=0x7faf004c7a40, key_info=key_info@entry=0x7faf004c77a0, key_count=key_count@entry=0x7faf004c7790, frm=frm@entry=0x7faf004c77b0) at /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.2.12/sql/sql_table.cc:4899
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#11 0x000056364824f000 in mysql_create_table_no_lock (thd=thd@entry=0x7faf1426f048, db=db@entry=0x7faf14365b90 "some_db", table_name=table_name@entry=0x7faf14365528 "SOME_TEMP_5571", create_info=create_info@entry=0x7faf004c7c40, alter_info=alter_info@entry=0x7faf004c7b90, is_trans=is_trans@entry=0x7faf004c7a40, create_table_mode=0) at /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.2.12/sql/sql_table.cc:5010
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#12 0x000056364824f1a0 in mysql_create_table (thd=thd@entry=0x7faf1426f048, create_table=create_table@entry=0x7faf14365580, create_info=create_info@entry=0x7faf004c7c40, alter_info=alter_info@entry=0x7faf004c7b90) at /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.2.12/sql/sql_table.cc:5073
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#13 0x00005636481d0e21 in mysql_execute_command (thd=thd@entry=0x7faf1426f048) at /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.2.12/sql/sql_parse.cc:3968
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#14 0x00005636481d1a5e in mysql_parse (thd=0x7faf1426f048, rawbuf=<optimized out>, length=<optimized out>, parser_state=0x7faf004c9140, is_com_multi=<optimized out>, is_next_command=<optimized out>) at /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.2.12/sql/sql_parse.cc:7900
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#15 0x00005636481d4a6f in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x7faf1426f048, packet=packet@entry=0x7faf144d1b59 "create table SOME_TEMP_5571 (ID NUMERIC(38), IDSTR VARCHAR(1000), NAME NVARCHAR(1000), DATEHOUR DATETIME, VALUE NUMERIC(38,5), VALUE2 NUMERIC(38,5), VALUE3 NUMERIC(38,5))", packet_length=packet_length@entry=174, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.2.12/sql/sql_parse.cc:1805
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#16 0x00005636481d5669 in do_command (thd=0x7faf1426f048) at /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.2.12/sql/sql_parse.cc:1360
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#17 0x0000563648298efa in do_handle_one_connection (connect=connect@entry=0x56364aca20f8) at /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.2.12/sql/sql_connect.cc:1335
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#18 0x000056364829901d in handle_one_connection (arg=0x56364aca20f8) at /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.2.12/sql/sql_connect.cc:1241
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#19 0x00007faf48ed1e25 in start_thread () from /lib64/libpthread.so.0
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#20 0x00007faf474a934d in clone () from /lib64/libc.so.6
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The bug and the fix are obvious, but it is hard to reproduce the bug, because it would require the InnoDB LRU eviction to kick in at the right moment.
I simply applied the contributed patch from upstream. This bug was introduced in MySQL 5.7, which was first merged to MariaDB in version 10.2.2.