Comment 1 for bug 1250762

Revision history for this message
Ovais Tariq (ovais-tariq) wrote :

There was another crash on a different server when upgraded to 5.5.34-32.0.

The relevant part from the error log is as follows:
131112 16:53:45 InnoDB: Assertion failure in thread 139575214880512 in
file buf0buf.ic line 749
InnoDB: Failing assertion: buf_page_in_file(bpage)
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/5.5/en/forcing-innodb-recovery.html
InnoDB: about forcing recovery.
22:53:45 UTC - mysqld got signal 6 ;
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.
Please help us make Percona Server better by reporting any
bugs at http://bugs.percona.com/

key_buffer_size=33554432
read_buffer_size=131072
max_used_connections=137
max_threads=3002
thread_count=5
connection_count=5
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads =
6602304 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...
stack_bottom = 0 thread_stack 0x40000
/opt/percona-server-5.5.34/bin/mysqld(my_print_stacktrace+0x35)[0x7eb7c5]
/opt/percona-server-5.5.34/bin/mysqld(handle_fatal_signal+0x3f4)[0x6a5ce4]
/lib64/libpthread.so.0[0x322bc0f500]
/lib64/libc.so.6(gsignal+0x35)[0x322b8328e5]
/lib64/libc.so.6(abort+0x175)[0x322b8340c5]
/opt/percona-server-5.5.34/bin/mysqld[0x895680]
/opt/percona-server-5.5.34/bin/mysqld[0x895b8e]
/opt/percona-server-5.5.34/bin/mysqld[0x895e30]
/opt/percona-server-5.5.34/bin/mysqld[0x83b67d]
/lib64/libpthread.so.0[0x322bc07851]
/lib64/libc.so.6(clone+0x6d)[0x322b8e894d]
You may download the Percona Server operations manual by visiting
http://www.percona.com/software/percona-server/. You may find information
in the manual which will help you identify the cause of the crash.

The assertion is raised within the function buf_page_get_space(). Though the assertion is raised within a different function here, assertion is similar to the previous crash, in that the assert happens because the page is not mapped to the tablespace.