So, i want to tell you about my some problem associate with mysql on a NetBSD 
1.6 (i386, nongeneric kernel, MySQL server version 3.23.49, i have a  128mb 
memory) 

How i will do reform this ?
==  log ==
030424 21:23:46  mysqld ended

030424 21:23:50  mysqld started
/usr/pkg/libexec/mysqld: ready for connections
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 agaist 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=8388600
record_buffer=131072
sort_buffer=1048564
max_used_connections=2
max_connections=50
threads_connected=2
It is possible that mysqld could use up to
key_buffer_size + (record_buffer + sort_buffer)*max_connections = 65791 K
bytes of memory
Hope that's ok, if not, decrease some variables in the equation

030424 21:25:59  mysqld restarted

==  log ==