Details
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Bug
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Status: Closed (View Workflow)
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Critical
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Resolution: Fixed
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10.3.8, 10.4.0
Description
The following statement by itself in a test file will crash the server:
select @@global.'m2'.replicate_ignore_table; |
I narrowed down the crash to this commit that implemented MDEV-16244.
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10.3 611488e3d9029f617884e10e47da208b0a77efec |
Version: '10.3.7-MariaDB-debug-log' socket: '/dev/shm/10.3/mysql-test/var/tmp/mysqld.1.sock' port: 16000 Source distribution
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mysqld: /mariadb/10.3/sql/sql_class.cc:2486: bool THD::check_string_for_wellformedness(const char *, size_t, CHARSET_INFO *) const: Assertion `charset_is_system_charset' failed.
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190719 11:01:22 [ERROR] mysqld got signal 6 ;
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…
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#6 0x00007fab9bf3d102 in __GI___assert_fail (assertion=0x55ba5a069ce5 "charset_is_system_charset", file=0x55ba5a069629 "/mariadb/10.3/sql/sql_class.cc", line=2486, function=0x55ba5a069cff "bool THD::check_string_for_wellformedness(const char *, size_t, CHARSET_INFO *) const") at assert.c:101
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#7 0x000055ba596ffdf6 in THD::check_string_for_wellformedness (this=0x7fab84000cf8, str=0x7fab84014180 "m2", length=2, cs=0x55ba5a89e480 <my_charset_utf8_general_ci>) at /mariadb/10.3/sql/sql_class.cc:2486
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#8 0x000055ba5973b2a7 in Lex_ident_sys_st::copy_sys (this=0x7fab95ded800, thd=0x7fab84000cf8, src=0x7fab95dedb70) at /mariadb/10.3/sql/sql_lex.cc:7991
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#9 0x000055ba598fd77b in MYSQLparse (thd=0x7fab84000cf8) at /mariadb/10.3/sql/sql_yacc.yy:15214
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#10 0x000055ba5975a8c8 in parse_sql (thd=0x7fab84000cf8, parser_state=0x7fab95dee6a0, creation_ctx=0x0, do_pfs_digest=<optimized out>) at /mariadb/10.3/sql/sql_parse.cc:10031
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#11 0x000055ba5974ae70 in mysql_parse (thd=0x7fab84000cf8, rawbuf=0x7fab840140a8 "select @@global.'m2'.replicate_ignore_table", length=<optimized out>, parser_state=0x7fab95dee6a0, is_com_multi=<optimized out>, is_next_command=<optimized out>) at /mariadb/10.3/sql/sql_parse.cc:7973
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Note: this change narrowly missed the 10.3.7 release, even though the version string says 10.3.7.
This bug was accidentally found by merging the test multi_source.mdev-8874 from 10.2 to 10.3. That test will be disabled in 10.3+ until this bug has been fixed. Please remember to re-enable the test as part of fixing this.
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- Closed
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