Unfortunately, that particular log does not help finding out the cause of those crashes. The squizez messages basically means that the map structure is somehow corrupt (the messages come from remove_ob). remove_ob does not call abort or otherwise kill execution, but my guess is that the fact the map is somehow corrupt, when this happens, the player and other pointers are put in a weird state. Please do confirm that you are at latest CVS - I haven't seen this problems on other servers. Please also make sure that you have done a make depend. doing cvs updates and compiles without ever having done a make depend is just asking for trouble.