MySQL crash while mysqldump / mysqlcheck - mysql

Question

everytime I try to backup or check all tables mysql server crashes on Windows server 2012,
I am using XAMPP stack for my development environment.
The database crypto has more then 1100+ tables in DB.
I am including the logs below.
InnoDB: End of page dump
2017-09-24 13:58:35 7dc InnoDB: uncompressed page, stored checksum in field1 2521749199, calculated checksums for field1: crc32 2344073126, innodb 1121903210, none 3735928559, stored checksum in field2 0, calculated checksums for field2: crc32 2344073126, innodb 2892594725, none 3735928559, page LSN 0 2936733816, low 4 bytes of LSN at page end 0, page number (if stored to page already) 34, space id (if created with >= MySQL-4.1.1 and stored already) 1767
InnoDB: page type 17855 meaning INDEX
InnoDB: Page may be an index page where index id is 1522
InnoDB: (index "PRIMARY" of table "crypto"."300-token")
2017-09-24 13:58:35 2012 [ERROR] InnoDB: It is also possible that your operatingsystem has corrupted its own file cache.
2017-09-24 13:58:35 2012 [ERROR] InnoDB: and rebooting your computer removes the error.
2017-09-24 13:58:35 2012 [ERROR] InnoDB: If the corrupt page is an index page you can also try to
2017-09-24 13:58:35 2012 [ERROR] InnoDB: fix the corruption by dumping, dropping, and reimporting
2017-09-24 13:58:35 2012 [ERROR] InnoDB: the corrupt table. You can use CHECK
2017-09-24 13:58:35 2012 [ERROR] InnoDB: TABLE to scan your table for corruption.
2017-09-24 13:58:35 2012 [ERROR] InnoDB: See also http://dev.mysql.com/doc/refman/5.6/en/forcing-innodb-recovery.html about forcing recovery.
2017-09-24 13:58:35 7dc InnoDB: Assertion failure in thread 2012 in file buf0lru.cc line 2394
InnoDB: Failing assertion: bpage->buf_fix_count == 0
InnoDB: We intentionally generate a memory trap.
InnoDB: Submit a detailed bug report to http://bugs.mysql.com.
InnoDB: If you get repeated assertion failures or crashes, even
InnoDB: immediately after the mysqld startup, there may be
InnoDB: corruption in the InnoDB tablespace. Please refer to
InnoDB: http://dev.mysql.com/doc/refman/5.6/en/forcing-innodb-recovery.html
InnoDB: about forcing recovery.
170924 13:58:35 [ERROR] mysqld got exception 0x80000003 ;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.
To report this bug, see https://mariadb.com/kb/en/reporting-bugs
We will try our best to scrape up some info that will hopefully help
diagnose the problem, but since we have already crashed, something is
definitely wrong and this may fail.
Server version: 10.1.22-MariaDB key_buffer_size=16777216
read_buffer_size=262144 max_used_connections=1 max_threads=1001
thread_count=1 It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads =
787106 K bytes of memory Hope that's ok; if not, decrease some
variables in the equation.
Thread pointer: 0x0 Attempting backtrace. You can use the following
information to find out where mysqld died. If you see no messages
after this, something went terribly wrong...
mysqld.exe!my_parameter_handler() mysqld.exe!my_wildcmp_mb_bin()
mysqld.exe!?save_in_result_field#Item##UAEX_N#Z()
mysqld.exe!?save_in_result_field#Item##UAEX_N#Z()
mysqld.exe!?save_in_result_field#Item##UAEX_N#Z()
mysqld.exe!?save_in_result_field#Item##UAEX_N#Z()
mysqld.exe!?save_in_result_field#Item##UAEX_N#Z()
KERNEL32.DLL!BaseThreadInitThunk()
ntdll.dll!RtlInitializeExceptionChain()
ntdll.dll!RtlInitializeExceptionChain() The manual page at
http://dev.mysql.com/doc/mysql/en/crashing.html contains information
that should help you find out what is causing the crash.
I hope someone will help me out
Thanks.

Answer 1

From this content in your question,
"Server version: 10.1.22-MariaDB key_buffer_size=16777216 read_buffer_size=262144 max_used_connections=1 max_threads=1001 thread_count=1 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 787106 K ...."
with max_threads=1001 clue above - check for max_connections in your my.ini or .cnf. Lowering max_connections to = 100 may or may not help get you past the BaseThreadInitThunk() ntdll.dll!