gistfile1.txt

01:18:57 UTC - mysqld got signal 11 ;
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.
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.

key_buffer_size=33554432
read_buffer_size=1048576
max_used_connections=4
max_threads=1024
thread_count=4
connection_count=2
It is possible that mysqld could use up to 
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 2143952 K  bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x51e3d10
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...
stack_bottom = 7fe2d5c3ee48 thread_stack 0x40000
/usr/sbin/mysqld(my_print_stacktrace+0x35)[0x8dc805]
/usr/sbin/mysqld(handle_fatal_signal+0x494)[0x6660e4]
/lib64/libpthread.so.0[0x3ecb00f710]
/usr/lib64/mysql/plugin/ha_mroonga.so(_ZN10ha_mroonga13generic_resetEv+0x2f)[0x7feb2b53d91f]
/usr/lib64/mysql/plugin/ha_mroonga.so(_ZN10ha_mroonga5resetEv+0x4f)[0x7feb2b541dcf]
/usr/sbin/mysqld(_Z18close_thread_tableP3THDPP5TABLE+0x2ea)[0x69cf3a]
/usr/sbin/mysqld(_Z19close_thread_tablesP3THD+0x1a3)[0x69d683]
/usr/sbin/mysqld(_ZN18Locked_tables_list20unlock_locked_tablesEP3THD+0x6b)[0x69d92b]
/usr/sbin/mysqld(_ZN3THD7cleanupEv+0x46)[0x6b16f6]
/usr/sbin/mysqld(_ZN3THD17release_resourcesEv+0x1a8)[0x6b19f8]
/usr/sbin/mysqld(_Z29one_thread_per_connection_endP3THDb+0x1c)[0x59a48c]
/usr/sbin/mysqld(_Z24do_handle_one_connectionP3THD+0x103)[0x6b4563]
/usr/sbin/mysqld(handle_one_connection+0x47)[0x6b4657]
/lib64/libpthread.so.0[0x3ecb0079d1]
/lib64/libc.so.6(clone+0x6d)[0x3ecace8b6d]

Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query (0): is an invalid pointer
Connection ID (thread ID): 15
Status: KILL_CONNECTION

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.
150114 10:18:57 mysqld_safe Number of processes running now: 0
150114 10:18:57 mysqld_safe mysqld restarted
2015-01-14 10:18:57 0 [Warning] Using unique option prefix key_buffer instead of key_buffer_size is deprecated and will be removed in a future release. Please use the full name instead.
2015-01-14 10:18:57 0 [Warning] 'NO_ZERO_DATE' is deprecated and will be removed in a future release.
2015-01-14 10:18:57 0 [Warning] 'NO_ZERO_IN_DATE' is deprecated and will be removed in a future release.
2015-01-14 10:18:57 25020 [Note] Plugin 'FEDERATED' is disabled.
2015-01-14 10:18:57 25020 [Note] InnoDB: Using atomics to ref count buffer pool pages
...