080416 09:02:20 mysqld_safe Starting mysqld daemon with databases from /data/base/schemas
080416  9:02:20 - 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=0
read_buffer_size=258048
max_used_connections=0
max_threads=151
threads_connected=0
It is possible that mysqld could use up to 
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 116201 K
bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

thd: 0x891f1d0
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...
Cannot determine thread, fp=0xbf9460a8, backtrace may not be correct.
Stack range sanity check OK, backtrace follows:
0x823bdde
0x833d4e5
0x833d5e9
0x83a71da
0x82857d7
0x828bbf4
0x828c793
0x828c9c8
0x83b6423
0x823d96c
0x8240795
0xb7cabf90
0x8178271
New value of fp=(nil) failed sanity check, terminating stack trace!
Please read http://dev.mysql.com/doc/refman/5.1/en/resolve-stack-dump.html
and follow instructions on how to resolve the stack trace.
Resolved stack trace is much more helpful in diagnosing the
problem, so please do resolve it
Trying to get some variables.
Some pointers may be invalid and cause the dump to abort...
thd->query at (nil)  is invalid pointer
thd->thread_id=0
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.
080416 09:02:20 mysqld_safe mysqld from pid file /data/base/schemas/cb01.corebreaker.com.pid ended