Hello, My sendmail server crash almost 2 time a day with the following message in the log/message kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000000 kernel: printing eip: kernel: c0121096 kernel: *pde = 00000000 kernel: Oops: 0002 kernel: iptable_filter ip_tables e100 pcnet32 mii keybdev mousedev hid input usb-ohci usbcore ips aic7xxx sd_mod scsi_mod kernel: CPU: 0 kernel: EIP: 0060:[<c0121096>] Not tainted kernel: EFLAGS: 00010286 kernel: kernel: EIP is at copy_process [kernel] 0x356 (2.4.20-8smp) please help - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html