MySQL "падает" со след сообщением:

mysqld got signal 10;
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=16384
read_buffer_size=258048
max_used_connections=358
max_connections=600
threads_connected=310
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_connections = 189611 K
bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

060810 14:58:34  mysqld restarted
060810 14:58:34  InnoDB: Started; log sequence number 0 43665
060810 14:58:34 [Note] /usr/local/libexec/mysqld: ready for connections.
Version: '5.0.9-beta'  socket: '/tmp/mysql.sock'  port: 3306  FreeBSD port: mysql-server-5.0.9_1

перед этим в mysql processlist'е наблюдается рост процессов...

# mysqladmin -u root -p processlist
+-----+---------+-----------+------+---------+------+-------+------------------+
| Id  | User    | Host      | db   | Command | Time | State | Info             |
+-----+---------+-----------+------+---------+------+-------+------------------+
| 3   | postfix | localhost | Mail | Sleep   | 2    |       |                  |
| 4   | postfix | localhost | Mail | Sleep   | 2    |       |                  |
| 5   | postfix | localhost | Mail | Sleep   | 1    |       |                  |

и т.д.  до 1000 с чем то доходит и "падает"... то есть все вроде как надо: доходит до критического кол-ва и "падает"....

не понятно почему он не сбрасывает эти процессы...
в мускул лезет только postfix со своими простецкими SELECT'ами...
почему процессы не сбрасываются, а накапливаются ??? в чем может быть дело ?

Спасибо.