arjuna# ./mysqld --debug=d,info,error,query,general,where:O,/tmp/mysqld.trace --user=mysql
031017  4:07:47  InnoDB: Database was not shut down normally.
InnoDB: Starting recovery from log files...
InnoDB: Starting log scan based on checkpoint at
InnoDB: log sequence number 0 43892
InnoDB: Doing recovery: scanned up to log sequence number 0 43892
031017  4:07:47  InnoDB: Flushing modified pages from the buffer pool...
031017  4:07:47  InnoDB: Started
Error: Freeing wrong aligned pointer at line 728, 'table.cc'
Error: Freeing wrong aligned pointer at line 91, 'my_open.c'
Error: Freeing wrong aligned pointer at line 560, 'table.cc'
Error: Freeing wrong aligned pointer at line 560, 'table.cc'
Error: Freeing wrong aligned pointer at line 1173, 'mf_iocache.c'
Error: Reallocating wrong aligned pointer at line 277, 'array.c'
Error: Reallocating wrong aligned pointer at line 277, 'array.c'
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=131072
max_used_connections=0
max_connections=100
threads_connected=0
It is possible that mysqld could use up to 
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_connections = 80380 K
bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

arjuna# ./mysqld --debug=d,info,error,query,general,where:O,/tmp/mysqld.trace --user=mysql
031017  4:08:06  InnoDB: Assertion failure in thread 12 in file os0sync.c line 143
InnoDB: Failing assertion: 0 == pthread_cond_init(&(event->cond_var), NULL)
InnoDB: We intentionally generate a memory trap.
InnoDB: Send a detailed bug report to mysql@lists.mysql.com
InnoDB: Thread 12 stopped in file os0sync.c line 143