Core keeps restarting

Once or twice a day my FMS Core with it's application restarts. As far as I see it happens when FMS runs on certain part of server side code that sets properties in shared object very fast (in for loop), for instance:

for (k = 0; k < sharedObjectNamesArray.length; k++)
{
application[sharedObjectNamesArray].setProperty(propName, propValue);
}

Log in my Core is:

#Fields: date time x-pid x-status x-ctx x-comment
2009-01-26 01:19:58 31823 (i)2581247 Core (31823) disconnected from edge. -
2009-01-26 01:19:58 31823 (i)2581233 Core (31823) disconnecting from admin. -
#Date: 2009-01-26
#Fields: date time x-pid x-status x-ctx x-comment
2009-01-26 01:19:59 29582 (i)2581237 Starting admin app on core (29582). -
2009-01-26 01:19:59 29582 (i)2581238 Core (29582) connecting to admin. -
2009-01-26 01:19:59 29582 (i)2581231 Core (29582) connected to admin. -
2009-01-26 01:19:59 29582 (i)2581234 Core (29582) connection to admin accepted. -
2009-01-26 01:19:59 29582 (i)2581246 Core (29582) sending register cmd to edge. -