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Date: Tue, 09 Mar 2010 10:44:34 +0300 From: "\"Oleg A. Arkhangelsky\"" <sysoleg@...dex.ru> To: netdev@...r.kernel.org Subject: Kernel panic in fib_rules_lookup (kernel 2.6.32) Hello, Got this kernel panic tomorrow. This PC is rather heavy loaded router with BGP full view (> 300K routes). We're using FIB_TRIE. Last time we got similar panic about 1 month ago. Please, let me know if you need additional information to debug (e.g. objdump). Thanks! Mar 9 10:08:55 bras-1 kernel: BUG: unable to handle kernel NULL pointer dereference at (null) Mar 9 10:08:55 bras-1 kernel: IP: [<c11fa012>] fib_rules_lookup+0xa2/0xd0 Mar 9 10:08:55 bras-1 kernel: *pde = 00000000 Mar 9 10:08:55 bras-1 kernel: Thread overran stack, or stack corrupted Mar 9 10:08:55 bras-1 kernel: Oops: 0000 [#1] SMP Mar 9 10:08:55 bras-1 kernel: Modules linked in: ipt_NETFLOW iTCO_wdt xt_tcpudp iptable_filter iptable_nat ip_tables ipt_ISG x_tables ipmi_watchdog ipmi_msghandler nf_nat_ftp nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack_ftp nf_conntrack 8021q e1000 e1000e Mar 9 10:08:55 bras-1 kernel: Mar 9 10:08:55 bras-1 kernel: Pid: 0, comm: swapper Not tainted (2.6.32 #3) Mar 9 10:08:55 bras-1 kernel: EIP: 0060:[<c11fa012>] EFLAGS: 00010246 CPU: 0 Mar 9 10:08:55 bras-1 kernel: EIP is at fib_rules_lookup+0xa2/0xd0 Mar 9 10:08:55 bras-1 kernel: EAX: 00000000 EBX: 00000000 ECX: f897a000 EDX: fffffff5 Mar 9 10:08:55 bras-1 kernel: ESI: c1305ce4 EDI: f729d420 EBP: c1305cb8 ESP: c1305ca0 Mar 9 10:08:55 bras-1 kernel: DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 Mar 9 10:08:55 bras-1 kernel: Process swapper (pid: 0, ti=c1304000 task=c1319ba0 task.ti=c1304000) Mar 9 10:08:55 bras-1 kernel: Stack: Mar 9 10:08:55 bras-1 kernel: c1305cc4 00000000 f729d464 c1305d20 c1305d20 f5719740 c1305cd4 c1242cfd Mar 9 10:08:55 bras-1 kernel: <0> c1305cc4 00000000 c1305d20 00000000 00000000 c1305d3c c123b985 f5719740 Mar 9 10:08:55 bras-1 kernel: <0> c1305ce4 00000008 00000003 00000000 f090195e 1816640a 00000000 00000000 Mar 9 10:08:55 bras-1 kernel: Call Trace: Mar 9 10:08:55 bras-1 kernel: [<c1242cfd>] ? fib_lookup+0x2d/0x40 Mar 9 10:08:55 bras-1 kernel: [<c123b985>] ? fib_validate_source+0x295/0x2f0 Mar 9 10:08:55 bras-1 kernel: [<c120b981>] ? ip_route_input+0x8b1/0xf30 Mar 9 10:08:55 bras-1 kernel: [<c120d0b0>] ? ip_rcv_finish+0x0/0x350 Mar 9 10:08:55 bras-1 kernel: [<c120d2f3>] ? ip_rcv_finish+0x243/0x350 Mar 9 10:08:55 bras-1 kernel: [<c120d0b0>] ? ip_rcv_finish+0x0/0x350 Mar 9 10:08:55 bras-1 kernel: [<c120d66e>] ? ip_rcv+0x26e/0x2b0 Mar 9 10:08:55 bras-1 kernel: [<c120d0b0>] ? ip_rcv_finish+0x0/0x350 Mar 9 10:08:55 bras-1 kernel: [<c11ec354>] ? netif_receive_skb+0x314/0x4d0 Mar 9 10:08:55 bras-1 kernel: [<c1085182>] ? __slab_free+0x112/0x2d0 Mar 9 10:08:55 bras-1 kernel: [<c11ec572>] ? process_backlog+0x62/0xa0 Mar 9 10:08:55 bras-1 kernel: [<c11ecbbd>] ? net_rx_action+0x7d/0x100 Mar 9 10:08:55 bras-1 kernel: [<c1031b35>] ? __do_softirq+0x85/0x110 Mar 9 10:08:55 bras-1 kernel: [<c1055c56>] ? handle_IRQ_event+0x36/0xd0 Mar 9 10:08:55 bras-1 kernel: [<c1058564>] ? move_native_irq+0x14/0x50 Mar 9 10:08:55 bras-1 kernel: [<c1031bed>] ? do_softirq+0x2d/0x40 Mar 9 10:08:55 bras-1 kernel: [<c1031d1d>] ? irq_exit+0x2d/0x40 Mar 9 10:08:55 bras-1 kernel: [<c1004c6f>] ? do_IRQ+0x4f/0xc0 Mar 9 10:08:55 bras-1 kernel: [<c1031d1d>] ? irq_exit+0x2d/0x40 Mar 9 10:08:55 bras-1 kernel: [<c10162c7>] ? smp_apic_timer_interrupt+0x57/0x90 Mar 9 10:08:55 bras-1 kernel: [<c1003429>] ? common_interrupt+0x29/0x30 Mar 9 10:08:55 bras-1 kernel: [<c10090e6>] ? mwait_idle+0x56/0x60 Mar 9 10:08:55 bras-1 kernel: [<c1001e44>] ? cpu_idle+0x54/0x70 Mar 9 10:08:55 bras-1 kernel: [<c124d2d3>] ? rest_init+0x53/0x60 Mar 9 10:08:55 bras-1 kernel: [<c1337895>] ? start_kernel+0x2b2/0x315 Mar 9 10:08:55 bras-1 kernel: [<c13373ae>] ? unknown_bootoption+0x0/0x1e4 Mar 9 10:08:55 bras-1 kernel: [<c133707e>] ? i386_start_kernel+0x7e/0xa8 Mar 9 10:08:55 bras-1 kernel: Code: bf 3c 03 8d b6 00 00 00 00 74 1e 8b 45 08 89 f2 8b 4d ec 89 04 24 89 d8 ff 57 1c 83 f8 f5 89 c2 75 27 8d b4 26 00 00 00 00 8b 1b <8b> 03 0f 18 00 90 3b 5d f0 0f 85 77 ff ff ff ba fd ff ff ff 83 Mar 9 10:08:55 bras-1 kernel: EIP: [<c11fa012>] fib_rules_lookup+0xa2/0xd0 SS:ESP 0068:c1305ca0 Mar 9 10:08:55 bras-1 kernel: CR2: 0000000000000000 Mar 9 10:08:55 bras-1 kernel: ---[ end trace 51f5fed99e546606 ]--- Mar 9 10:08:55 bras-1 kernel: Kernel panic - not syncing: Fatal exception in interrupt Mar 9 10:08:55 bras-1 kernel: Pid: 0, comm: swapper Tainted: G D 2.6.32 #3 Mar 9 10:08:55 bras-1 kernel: Call Trace: Mar 9 10:08:55 bras-1 kernel: [<c1252fb3>] ? printk+0x18/0x1d Mar 9 10:08:55 bras-1 kernel: [<c1252ee9>] panic+0x43/0xf5 Mar 9 10:08:55 bras-1 kernel: [<c1006739>] oops_end+0xb9/0xc0 Mar 9 10:08:55 bras-1 kernel: [<c101bcf6>] no_context+0xb6/0x150 Mar 9 10:08:55 bras-1 kernel: [<f8058576>] ? e1000_set_itr+0xb6/0x170 [e1000e] Mar 9 10:08:55 bras-1 kernel: [<c101bddf>] __bad_area_nosemaphore+0x4f/0x180 Mar 9 10:08:55 bras-1 kernel: [<c1055c56>] ? handle_IRQ_event+0x36/0xd0 Mar 9 10:08:55 bras-1 kernel: [<c1058564>] ? move_native_irq+0x14/0x50 Mar 9 10:08:55 bras-1 kernel: [<c105758d>] ? handle_edge_irq+0x6d/0x140 Mar 9 10:08:55 bras-1 kernel: [<c100569a>] ? handle_irq+0x1a/0x30 Mar 9 10:08:55 bras-1 kernel: [<c1086195>] ? __slab_alloc+0x315/0x560 Mar 9 10:08:55 bras-1 kernel: [<c1035fc5>] ? lock_timer_base+0x25/0x50 Mar 9 10:08:55 bras-1 kernel: [<c101bf22>] bad_area_nosemaphore+0x12/0x20 Mar 9 10:08:55 bras-1 kernel: [<c101c30c>] do_page_fault+0x25c/0x300 Mar 9 10:08:55 bras-1 kernel: [<c1241cf9>] ? check_leaf+0x59/0x80 Mar 9 10:08:55 bras-1 kernel: [<c101c0b0>] ? do_page_fault+0x0/0x300 Mar 9 10:08:55 bras-1 kernel: [<c125570e>] error_code+0x66/0x6c Mar 9 10:08:55 bras-1 kernel: [<c101c0b0>] ? do_page_fault+0x0/0x300 Mar 9 10:08:55 bras-1 kernel: [<c11fa012>] ? fib_rules_lookup+0xa2/0xd0 Mar 9 10:08:55 bras-1 kernel: [<c1242cfd>] fib_lookup+0x2d/0x40 Mar 9 10:08:55 bras-1 kernel: [<c123b985>] fib_validate_source+0x295/0x2f0 Mar 9 10:08:55 bras-1 kernel: [<c120b981>] ip_route_input+0x8b1/0xf30 Mar 9 10:08:55 bras-1 kernel: [<c120d0b0>] ? ip_rcv_finish+0x0/0x350 Mar 9 10:08:55 bras-1 kernel: [<c120d2f3>] ip_rcv_finish+0x243/0x350 Mar 9 10:08:55 bras-1 kernel: [<c120d0b0>] ? ip_rcv_finish+0x0/0x350 Mar 9 10:08:55 bras-1 kernel: [<c120d66e>] ip_rcv+0x26e/0x2b0 Mar 9 10:08:55 bras-1 kernel: [<c120d0b0>] ? ip_rcv_finish+0x0/0x350 Mar 9 10:08:55 bras-1 kernel: [<c11ec354>] netif_receive_skb+0x314/0x4d0 Mar 9 10:08:55 bras-1 kernel: [<c1085182>] ? __slab_free+0x112/0x2d0 Mar 9 10:08:55 bras-1 kernel: [<c11ec572>] process_backlog+0x62/0xa0 Mar 9 10:08:55 bras-1 kernel: [<c11ecbbd>] net_rx_action+0x7d/0x100 Mar 9 10:08:55 bras-1 kernel: [<c1031b35>] __do_softirq+0x85/0x110 Mar 9 10:08:55 bras-1 kernel: [<c1055c56>] ? handle_IRQ_event+0x36/0xd0 Mar 9 10:08:55 bras-1 kernel: [<c1058564>] ? move_native_irq+0x14/0x50 Mar 9 10:08:55 bras-1 kernel: [<c1031bed>] do_softirq+0x2d/0x40 Mar 9 10:08:55 bras-1 kernel: [<c1031d1d>] irq_exit+0x2d/0x40 Mar 9 10:08:55 bras-1 kernel: [<c1004c6f>] do_IRQ+0x4f/0xc0 Mar 9 10:08:55 bras-1 kernel: [<c1031d1d>] ? irq_exit+0x2d/0x40 Mar 9 10:08:55 bras-1 kernel: [<c10162c7>] ? smp_apic_timer_interrupt+0x57/0x90 Mar 9 10:08:55 bras-1 kernel: [<c1003429>] common_interrupt+0x29/0x30 Mar 9 10:08:55 bras-1 kernel: [<c10090e6>] ? mwait_idle+0x56/0x60 Mar 9 10:08:55 bras-1 kernel: [<c1001e44>] cpu_idle+0x54/0x70 Mar 9 10:08:55 bras-1 kernel: [<c124d2d3>] rest_init+0x53/0x60 Mar 9 10:08:55 bras-1 kernel: [<c1337895>] start_kernel+0x2b2/0x315 Mar 9 10:08:55 bras-1 kernel: [<c13373ae>] ? unknown_bootoption+0x0/0x1e4 Mar 9 10:08:55 bras-1 kernel: [<c133707e>] i386_start_kernel+0x7e/0xa8 -- wbr, Oleg. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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