mysql.err crash log

mysqld-crash.txt (text/plain), 2.59 KB, created by cilly on 2015-01-28 14:38:21 UTC

tail -n 50 /var/log/mysql/mysqld.err
2015-01-28 15:17:03 18829 [Note] InnoDB: 5.6.22 started; log sequence number 1982988
2015-01-28 15:17:03 18829 [Note] Recovering after a crash using mysqld-bin
2015-01-28 15:17:03 18829 [Note] Starting crash recovery...
2015-01-28 15:17:03 18829 [Note] Crash recovery finished.
2015-01-28 15:17:03 18829 [Note] RSA private key file not found: /var/lib/mysql//private_key.pem. Some authentication plugins will not work.
2015-01-28 15:17:03 18829 [Note] RSA public key file not found: /var/lib/mysql//public_key.pem. Some authentication plugins will not work.
2015-01-28 15:17:03 18829 [Note] Server hostname (bind-address): '127.0.0.1'; port: 3306
2015-01-28 15:17:03 18829 [Note]   - '127.0.0.1' resolves to '127.0.0.1';
2015-01-28 15:17:03 18829 [Note] Server socket created on IP: '127.0.0.1'.
14:17:03 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=16777216
read_buffer_size=262144
max_used_connections=0
max_threads=151
thread_count=0
connection_count=0
It is possible that mysqld could use up to 
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 134417 K  bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x1a57f80790
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 = 3e2e4490a80 thread_stack 0x40000
/usr/sbin/mysqld(my_print_stacktrace+0x47)[0x1a560c9aa7]
/usr/sbin/mysqld(handle_fatal_signal+0x3e0)[0x1a55e2c920]
/lib64/libpthread.so.0(+0x10e00)[0x329ce6d6e00]
/usr/sbin/mysqld(_Z9get_fieldP11st_mem_rootP5Field+0x30)[0x1a55f39ee0]
/usr/sbin/mysqld(_Z10acl_reloadP3THD+0x1393)[0x1a55e460a3]
/usr/sbin/mysqld(_Z8acl_initb+0x147)[0x1a55e470a7]
/usr/sbin/mysqld(_Z11mysqld_mainiPPc+0x1472)[0x1a55d357e2]
/lib64/libc.so.6(__libc_start_main+0x11b)[0x329cdd0ee5b]
/usr/sbin/mysqld(+0x368123)[0x1a55d28123]

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): 0
Status: NOT_KILLED

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.