Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Duplicate
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10.4.12
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None
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CentOS 7, PHP 7.3.14
Description
Firstly I apologise that my reproduction testcase is in PHP, I have tried to reproduce it on the command line using PREPARE but cannot - so I am suspecting maybe the mysqlnd driver but it is beyond my understanding which bit is failing.
I have tried it on 2 different servers with the same result.
Test Case
CREATE TABLE `testdb`.`t` ( |
`id` varchar(1) COLLATE utf8_unicode_ci DEFAULT NULL |
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci |
try { |
mysqli_report(MYSQLI_REPORT_ERROR |MYSQLI_REPORT_STRICT);
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$mysqli = new \mysqli('localhost','username','password'); |
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$prepare = $mysqli->prepare(" |
SELECT id
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FROM `testdb`.`t`
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WHERE id = ? OR id = ?
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");
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$p1 = ''; |
$p2 = null; |
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$prepare->bind_param('ss',$p1, $p2); |
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$prepare->execute(); |
} catch (\mysqli_sql_exception $e) { |
print_r($e); |
}
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Expected
Nothing
Actual
MariaDB crashes with a segfault:
200326 16:05:40 [ERROR] mysqld got signal 11 ;
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This could be because you hit a bug. It is also possible that this binary
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or one of the libraries it was linked against is corrupt, improperly built,
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or misconfigured. This error can also be caused by malfunctioning hardware.
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To report this bug, see https://mariadb.com/kb/en/reporting-bugs
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We will try our best to scrape up some info that will hopefully help
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diagnose the problem, but since we have already crashed,
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something is definitely wrong and this may fail.
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Server version: 10.4.12-MariaDB-log
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key_buffer_size=402653184
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read_buffer_size=2097152
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max_used_connections=6
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max_threads=1026
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thread_count=15
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It is possible that mysqld could use up to
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key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 4621016 K bytes of memory
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Hope that's ok; if not, decrease some variables in the equation.
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Thread pointer: 0x7fe0fc0009a8
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Attempting backtrace. You can use the following information to find out
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where mysqld died. If you see no messages after this, something went
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terribly wrong...
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stack_bottom = 0x7fe1c0060cf0 thread_stack 0x49000
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/usr/sbin/mysqld(my_print_stacktrace+0x2e)[0x561f86e17a1e]
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/usr/sbin/mysqld(handle_fatal_signal+0x30f)[0x561f868abd8f]
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sigaction.c:0(__restore_rt)[0x7fe1ca8625f0]
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/usr/sbin/mysqld(_Z7sortcmpPK6StringS1_PK15charset_info_st+0xe)[0x561f8671d40e]
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/usr/sbin/mysqld(_ZNK26Type_handler_string_result13Item_const_eqEPK10Item_constS2_b+0x9a)[0x561f867d403a]
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/usr/sbin/mysqld(_ZN4Item15eq_by_collationEPS_bPK15charset_info_st+0x3f)[0x561f868d177f]
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/usr/sbin/mysqld(_ZN9Item_cond14add_key_fieldsEP4JOINPP9KEY_FIELDPjyPP14SARGABLE_PARAM+0x2a1)[0x561f866c1591]
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/usr/sbin/mysqld(+0x6daae1)[0x561f866c8ae1]
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/usr/sbin/mysqld(_ZN4JOIN14optimize_innerEv+0x1663)[0x561f866f0d93]
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/usr/sbin/mysqld(_ZN4JOIN8optimizeEv+0x9d)[0x561f866f2bad]
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/usr/sbin/mysqld(_Z12mysql_selectP3THDP10TABLE_LISTjR4ListI4ItemEPS4_jP8st_orderS9_S7_S9_yP13select_resultP18st_select_lex_unitP13st_select_lex+0xe1)[0x561f866f2 cb1]
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/usr/sbin/mysqld(_Z13handle_selectP3THDP3LEXP13select_resultm+0x1d7)[0x561f866f38c7]
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/usr/sbin/mysqld(+0x59f3d4)[0x561f8658d3d4]
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/usr/sbin/mysqld(_Z21mysql_execute_commandP3THD+0x467d)[0x561f866994fd]
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/usr/sbin/mysqld(_ZN18Prepared_statement7executeEP6Stringb+0x4b6)[0x561f866b1cc6]
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/usr/sbin/mysqld(_ZN18Prepared_statement12execute_loopEP6StringbPhS2_+0x92)[0x561f866b1e82]
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/usr/sbin/mysqld(+0x6c47e7)[0x561f866b27e7]
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/usr/sbin/mysqld(_Z19mysqld_stmt_executeP3THDPcj+0x27)[0x561f866b2877]
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/usr/sbin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcjbb+0x17f5)[0x561f866a0f85]
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/usr/sbin/mysqld(_Z10do_commandP3THD+0x11c)[0x561f866a2a4c]
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/usr/sbin/mysqld(_Z24do_handle_one_connectionP7CONNECT+0x1fa)[0x561f8678132a]
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/usr/sbin/mysqld(handle_one_connection+0x3d)[0x561f8678140d]
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pthread_create.c:0(start_thread)[0x7fe1ca85ae65]
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/lib64/libc.so.6(clone+0x6d)[0x7fe1c8bfb88d]
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Trying to get some variables.
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Some pointers may be invalid and cause the dump to abort.
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Query (0x7fe0fc00fe20): SELECT id FROM `generaldb`.`test_crash` WHERE id = '' OR id = NULL
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Connection ID (thread ID): 519
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Status: NOT_KILLED
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Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pu shdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_ma tch_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,joi n_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equ alities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=on
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The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
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information that should help you find out what is causing the crash.
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Writing a core file...
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Working directory at /mnt/storage/database/mysql
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Resource Limits:
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Limit Soft Limit Hard Limit Units
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Max cpu time unlimited unlimited seconds
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Max file size unlimited unlimited bytes
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Max data size unlimited unlimited bytes
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Max stack size 8388608 unlimited bytes
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Max core file size 0 unlimited bytes
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Max resident set unlimited unlimited bytes
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Max processes 63133 63133 processes
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Max open files 16364 16364 files
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Max locked memory 65536 65536 bytes
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Max address space unlimited unlimited bytes
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Max file locks unlimited unlimited locks
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Max pending signals 63133 63133 signals
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Max msgqueue size 819200 819200 bytes
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Max nice priority 0 0
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Max realtime priority 0 0
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Max realtime timeout unlimited unlimited us
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Core pattern: |/usr/libexec/abrt-hook-ccpp %s %c %p %u %g %t e %P %I %h
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Attachments
Issue Links
- duplicates
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- Closed
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- relates to
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- Closed
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- Closed
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