Hello everybody, I have a serious problem with my corporate firewall, witch is an ASA 5520, fv 8.3, with 8 +1 interfaces. It suddenly started to crash every 10/20 minutes and rebooting alone. First of all I checked system resources witch are in a very low usage state. I also checked interfaces errors, but nothing strange come out o from error counters analisys. I tried disabling logging and all the service policy rules configured, but nothing changed. Nothing changed and firewal continue restarting by himself. Last logs I received before crash were: %ASA-4-711004: Task ran for 35 msec, Process = Dispatch Unit, PC = 84a619e, Call stack = %ASA-4-711004: Task ran for 35 msec, Process = Dispatch Unit, PC = 84a619e, Call stack =   0x084A619E  0x084A6512  0x084A70E1  0x084A7987  0x084A7AAA  0x08558B9B  0x08558E8A  0x083D3518  0x083CA145  0x080659D1  0x089196D9  0x08919790  0x089FF711  0x08A27468 Here the sh crashinfo command on module 0, after last reboot: hread Name: Dispatch Unit Page fault: Address not mapped     vector 0x0000000e        edi 0x00000000        esi 0x6d385d1c        ebp 0x6c2d5a90        esp 0x6c2d5a28        ebx 0x6d37fe90        edx 0x6d385d28        ecx 0x6d385e28        eax 0xfffffffc error code 0x00000005        eip 0x08cda948         cs 0x00000073     eflags 0x00013286        CR2 0xfffffffc Cisco Adaptive Security Appliance Software Version 8.3(1) Compiled on Thu 04-Mar-10 16:56 by builders Hardware:   ASA5520 Crashinfo collected on 11:43:50.787 CEST Mon Feb 28 2011 Any suggestion to find out the problem???? Thank you very much, Matt ... View more