Hi Used redhat6' squid 3.1, and the system is crashing when there is load increased. Aug 20 14:30:01 proxy-server squid[2450]: Squid Parent: child process 6591 exited due to signal 6 with status 0 Aug 20 14:30:04 proxy-server squid[2450]: Squid Parent: child process 7091 started Aug 20 14:46:40 proxy-server abrt[22338]: Saved core dump of pid 7091 (/usr/sbin/squid) to /var/spool/abrt/ccpp-2012-08-20-14:46:36-7091 (668131328 bytes) Briefly look the dump directory, only thing I found is the direct is the cache direct, there is a coredump file, try to use crash to read it, not successful. Could anyone advise me what is possible reason for the crash, and the solution? Thanks in advance Julie