>>You need to find out what's triggering that. Turning on query logging >>would be a good way of investigating. Which directives can I use to enable this ? debug_print_parse ? debug_print_rewritten ? debug_print_plan ? debug_pretty_print ? >>Rather large, shared buffers for a machine with only 1 gig of ram. 640 >>Meg of RAM means the kernel is basically double buffering everything. >>have you tested with smaller settings and this setting was the best? I had 256 of RAM then I increase to 1GB thinking this could be a problem of out of memory or a buggy memory...... After this "upgrade" I increase the numbers of shared buffers,etc It's important to say that the max memory usage reach to only 80%. What values do you suggest ? >>You might want to look in your signal man page on BSD and see what >>signal 10 means. On solaris it's a bus error. Not a clue what it is in >>FreeBSD myself though. FreeBSD man page say: 10 SIGBUS The system does not generate core dump file for this error..... Regards, ---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to majordomo@xxxxxxxxxxxxxx)