Hi Team, I am getting the below kernel panic message when i enable NAT in linux kernel 2.6.31 running on mips based SOC board. could you please let me know if you this issue already FIXED or root caused somewhere ?? Thanks for your help Regards Ramesh Unhandled kernel unaligned access or invalid instruction[#1]: Cpu 0 $ 0 : 00000000 00000000 804f3172 0000005c $ 4 : 8797c8c0 0000001c 879a32e4 00000001 $ 8 : 00000028 800fdf48 00000014 37987883 $12 : 185a5616 80256a20 05491623 edf4c4c3 $16 : 00000006 0000001c 00000014 879a32e4 $20 : 8797c8c0 00000001 879a32d8 879cec00 $24 : 00000000 80193958 $28 : 87824000 87825a50 8797c8c0 801e5074 Hi : 00000388 Lo : 00000000 epc : 801e6b60 tcp_manip_pkt+0x3c/0x11c Not tainted ra : 801e5074 manip_pkt+0x70/0x14c Status: 1100ff03 KERNEL EXL IE Cause : 00800010 BadVA : 804f318e PrId : 00019750 (MIPS 74Kc) Modules linked in: athrs_gmac Process ksoftirqd/0 (pid: 3, threadinfo=87824000, task=87817198, tls=00000000) Stack : 185a5616 80256a20 05491623 edf4c4c3 804f3186 8797c8c0 804f3172 00000006 8797c8c0 0000001c 879a32e4 00000001 00000001 801e5074 87825b10 8111ae50 87824000 87825ab8 8797c8c0 801e527c 804f3186 8797c8c0 879a32e4 00000014 00000000 801e52cc 8797c8c0 87825c08 8797c8c0 00000001 00000001 87825ad8 802cb970 802c6aa0 c0a80115 00000000 00000000 00000000 052c0002 0a34f48c ... Call Trace: [<801e6b60>] tcp_manip_pkt+0x3c/0x11c [<801e5074>] manip_pkt+0x70/0x14c [<801e52cc>] nf_nat_icmp_reply_translation+0x17c/0x26c [<801eb8bc>] nf_nat_fn+0x100/0x1d8 [<801ebae0>] nf_nat_out+0x48/0xe8 [<8018a174>] nf_iterate+0x84/0xf8 [<8018a378>] nf_hook_slow+0x94/0x130 [<801b4d94>] ip_output+0xac/0xd8 [<801b401c>] ip_push_pending_frames+0x2e8/0x378 [<801d6c98>] icmp_send+0x524/0x58c [<801a9ff4>] ipv4_link_failure+0x20/0x60 [<801d41dc>] arp_error_report+0x38/0x4c [<8017cf00>] neigh_invalidate+0x94/0xb8 [<8017e8e0>] neigh_timer_handler+0x1f8/0x448 [<8002d708>] run_timer_softirq+0x14c/0x1d8 [<80029248>] __do_softirq+0xb0/0x144 [<80029324>] do_softirq+0x48/0x6c [<800293a8>] ksoftirqd+0x60/0xf0 [<80037c4c>] kthread+0x7c/0x88 [<800085ec>] kernel_thread_helper+0x10/0x18 Code: afbf0034 8c8200a8 8c830054 <7c45100a> 7c421e00 00021080 00458021 26020014 0062182b Disabling lock debugging due to kernel taint Kernel panic - not syncing: Fatal exception in interrupt -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html