ons 2009-09-16 klockan 18:02 +0530 skrev Avinash Rao: > 3) how do i use truss, not found on my machine What OS are you running on the server? If Linux then use strace instead. > 4) root@sunbox:~# gdb /usr/sbin/squid 21557 > This GDB was configured as "x86_64-linux-gnu"... > (no debugging symbols found) Sorry, to use GDB your squid binary needs to be built with debug information and not stripped. > (no debugging symbols found) > 0x00007ff17d4ad315 in waitpid () from /lib/libpthread.so.0 Hmm.. which of the Squid processes did you attach to? Regards Henrik