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Date: Fri, 15 Apr 2011 12:30:02 +0100 From: "Simon Arlott" <simon@...e.lp0.eu> To: "Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>, "netdev" <netdev@...r.kernel.org> Subject: BUG: unable to handle kernel NULL pointer dereference at 000002c0 / IP: [<c04c70f2>] in6_dev_finish_destroy+0x35/0x8c On Thu, April 14, 2011 23:53, Simon Arlott wrote: > [19258502.086131] BUG: unable to handle kernel paging request at 676e7543 > [19258502.087007] IP: [<c04d89a7>] icmpv6_send+0x5c3/0x6e2 This happened again in a different part of icmpv6_send: [31890.810491] BUG: unable to handle kernel NULL pointer dereference at 000002c0 [31890.814522] IP: [<c04c70f2>] in6_dev_finish_destroy+0x35/0x8c [31890.814522] *pdpt = 00000000160fb001 *pde = 0000000000000000 [31890.814522] Oops: 0002 [#1] PREEMPT SMP [31890.814522] last sysfs file: /sys/devices/platform/it87.552/cpu0_vid [31890.814522] Modules linked in: xt_tcpmss xt_length xt_TCPMSS ppp_synctty sch_sfq xt_u32 xt_CLASSIFY sch_htb ppp_async bnep nfsd lockd sunrpc rfcomm l2cap crc16 exportfs nf_conntrack_ipv6 xt_state ip6t_LOG ipm [31890.889345] [31890.889345] Pid: 3, comm: ksoftirqd/0 Tainted: G W 2.6.35.4-git+ #git+ GA-MA69VM-S2/GA-MA69VM-S2 [31890.889345] EIP: 0060:[<c04c70f2>] EFLAGS: 00010246 CPU: 0 [31890.917900] EIP is at in6_dev_finish_destroy+0x35/0x8c [31890.917900] EAX: 00000009 EBX: d6997fa3 ECX: c0513fcd EDX: 00000000 [31890.917900] ESI: 00000000 EDI: f7483bd4 EBP: f7483b40 ESP: f7483b38 [31890.917900] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [31890.917900] Process ksoftirqd/0 (pid: 3, ti=f7482000 task=f74800a0 task.ti=f7482000) [31890.917900] Stack: [31890.917900] d6997fa3 00000159 f7483c4c c04d8a8b efb86cc0 c067f614 f7483b58 c067f614 [31890.917900] <0> f7483b68 c0513fe0 0021c090 0021c086 f7483b88 c022e74d 00000046 0101ff2f [31890.917900] <0> ef87e04c 00000151 f6e1fac0 f6e1fdb4 ef87e05c 00000000 00000040 f6e1faf0 [31890.917900] Call Trace: [31890.917900] [<c04d8a8b>] ? icmpv6_send+0x6a7/0x6e2 [31890.917900] [<c0513fe0>] ? _raw_spin_unlock_irqrestore+0x42/0x58 [31890.917900] [<c022e74d>] ? release_console_sem+0x197/0x1c4 [31890.917900] [<fa7ab0b5>] ? reject_tg6+0x70/0x43f [ip6t_REJECT] [31890.917900] [<fa7d09b1>] ? ip6t_log_packet+0x15d/0x167 [ip6t_LOG] [31890.917900] [<c024e201>] ? trace_hardirqs_on+0xb/0xd [31890.917900] [<c0232a72>] ? local_bh_enable_ip+0x97/0xad [31890.917900] [<c0513f59>] ? _raw_spin_unlock_bh+0x2f/0x32 [31890.917900] [<fa7d09b1>] ? ip6t_log_packet+0x15d/0x167 [ip6t_LOG] [31890.917900] [<fa6981a0>] ? ipv6_find_hdr+0xf8/0x164 [ip6_tables] [31890.917900] [<fa6987c1>] ? ip6t_do_table+0x4c8/0x53e [ip6_tables] [31890.917900] [<fa73e0f0>] ? ip6table_mangle_hook+0xf0/0x100 [ip6table_mangle] [31890.917900] [<fa6a3018>] ? ip6table_filter_hook+0x18/0x20 [ip6table_filter] [31890.917900] [<c046ee87>] ? nf_iterate+0x2f/0x62 [31890.917900] [<c04c40c8>] ? ip6_input_finish+0x0/0x3db [31890.917900] [<c046f088>] ? nf_hook_slow+0x63/0xeb [31890.917900] [<c04c40c8>] ? ip6_input_finish+0x0/0x3db [31890.917900] [<c04c44d6>] ? ip6_input+0x33/0x47 [31890.917900] [<c04c40c8>] ? ip6_input_finish+0x0/0x3db [31890.917900] [<c04c4775>] ? ip6_rcv_finish+0x8b/0x8e [31890.917900] [<fc22aa3a>] ? nf_ct_frag6_output+0x7c/0x95 [nf_conntrack_ipv6] [31890.917900] [<fc22a45c>] ? ipv6_defrag+0x87/0x9f [nf_conntrack_ipv6] [31890.917900] [<c04c46ea>] ? ip6_rcv_finish+0x0/0x8e [31890.917900] [<c046ee87>] ? nf_iterate+0x2f/0x62 [31890.917900] [<c04c46ea>] ? ip6_rcv_finish+0x0/0x8e [31890.917900] [<c046f088>] ? nf_hook_slow+0x63/0xeb [31890.917900] [<c04c46ea>] ? ip6_rcv_finish+0x0/0x8e [31890.917900] [<c04c4aff>] ? ipv6_rcv+0x387/0x47c [31890.917900] [<c04c46ea>] ? ip6_rcv_finish+0x0/0x8e [31890.917900] [<c0455065>] ? __netif_receive_skb+0x367/0x3b6 [31890.917900] [<c0455142>] ? process_backlog+0x8e/0x146 [31890.917900] [<c0455c3b>] ? net_rx_action+0x62/0x119 [31890.917900] [<c0232750>] ? __do_softirq+0x8b/0x10a [31890.917900] [<c02327fa>] ? do_softirq+0x2b/0x43 [31890.917900] [<c0232885>] ? run_ksoftirqd+0x73/0x155 [31890.917900] [<c0232812>] ? run_ksoftirqd+0x0/0x155 [31890.917900] [<c023fdbd>] ? kthread+0x61/0x66 [31890.917900] [<c023fd5c>] ? kthread+0x0/0x66 [31890.917900] [<c0202c7a>] ? kernel_thread_helper+0x6/0x1a [31890.917900] Code: 40 04 39 43 04 74 0f ba 45 01 00 00 b8 7a a1 63 c0 e8 32 70 d6 ff 83 7b 0c 00 74 0f ba 46 01 00 00 b8 7a a1 63 c0 e8 1d 70 d6 ff <f0> ff 8e c0 02 00 00 83 bb e4 00 00 00 00 75 0f 53 68 b5 a [31890.917900] EIP: [<c04c70f2>] in6_dev_finish_destroy+0x35/0x8c SS:ESP 0068:f7483b38 [31890.917900] CR2: 00000000000002c0 [31891.236446] ---[ end trace 830bf5b3286acea0 ]--- [31891.241375] Kernel panic - not syncing: Fatal exception in interrupt [31891.248085] Pid: 3, comm: ksoftirqd/0 Tainted: G D W 2.6.35.4-git+ #git+ [31891.255918] Call Trace: [31891.258474] [<c0511194>] ? printk+0xf/0x13 [31891.262911] [<c0511116>] panic+0x55/0xc4 [31891.267130] [<c02050ed>] oops_end+0x6e/0x7c [31891.271619] [<c021a514>] no_context+0x13f/0x149 [31891.276496] [<c021a657>] __bad_area_nosemaphore+0x139/0x141 [31891.282461] [<c0207360>] ? native_sched_clock+0x42/0x8d [31891.288090] [<c024468d>] ? sched_clock_local+0x17/0x104 [31891.293699] [<c021a66c>] bad_area_nosemaphore+0xd/0x10 [31891.299206] [<c021a910>] do_page_fault+0x14e/0x302 [31891.304356] [<c0205311>] ? show_trace+0x10/0x14 [31891.309219] [<c05110b7>] ? dump_stack+0x57/0x61 [31891.314102] [<c021a7c2>] ? do_page_fault+0x0/0x302 [31891.319236] [<c051499b>] error_code+0x6b/0x70 [31891.323934] [<c0513fcd>] ? _raw_spin_unlock_irqrestore+0x2f/0x58 [31891.330370] [<c021a7c2>] ? do_page_fault+0x0/0x302 [31891.335536] [<c04c70f2>] ? in6_dev_finish_destroy+0x35/0x8c [31891.341512] [<c04d8a8b>] icmpv6_send+0x6a7/0x6e2 [31891.346471] [<c0513fe0>] ? _raw_spin_unlock_irqrestore+0x42/0x58 [31891.352853] [<c022e74d>] ? release_console_sem+0x197/0x1c4 [31891.358740] [<fa7ab0b5>] reject_tg6+0x70/0x43f [ip6t_REJECT] [31891.364821] [<fa7d09b1>] ? ip6t_log_packet+0x15d/0x167 [ip6t_LOG] [31891.371340] [<c024e201>] ? trace_hardirqs_on+0xb/0xd [31891.376604] [<c0232a72>] ? local_bh_enable_ip+0x97/0xad [31891.382205] [<c0513f59>] ? _raw_spin_unlock_bh+0x2f/0x32 [31891.387945] [<fa7d09b1>] ? ip6t_log_packet+0x15d/0x167 [ip6t_LOG] [31891.394444] [<fa6981a0>] ? ipv6_find_hdr+0xf8/0x164 [ip6_tables] [31891.400896] [<fa6987c1>] ip6t_do_table+0x4c8/0x53e [ip6_tables] [31891.407260] [<fa73e0f0>] ? ip6table_mangle_hook+0xf0/0x100 [ip6table_mangle] [31891.414819] [<fa6a3018>] ip6table_filter_hook+0x18/0x20 [ip6table_filter] [31891.422118] [<c046ee87>] nf_iterate+0x2f/0x62 [31891.426800] [<c04c40c8>] ? ip6_input_finish+0x0/0x3db [31891.432267] [<c046f088>] nf_hook_slow+0x63/0xeb [31891.437147] [<c04c40c8>] ? ip6_input_finish+0x0/0x3db [31891.442583] [<c04c44d6>] ip6_input+0x33/0x47 [31891.447195] [<c04c40c8>] ? ip6_input_finish+0x0/0x3db [31891.452608] [<c04c4775>] ip6_rcv_finish+0x8b/0x8e [31891.457655] [<fc22aa3a>] nf_ct_frag6_output+0x7c/0x95 [nf_conntrack_ipv6] [31891.464929] [<fc22a45c>] ipv6_defrag+0x87/0x9f [nf_conntrack_ipv6] [31891.471561] [<c04c46ea>] ? ip6_rcv_finish+0x0/0x8e [31891.476693] [<c046ee87>] nf_iterate+0x2f/0x62 [31891.481377] [<c04c46ea>] ? ip6_rcv_finish+0x0/0x8e [31891.486501] [<c046f088>] nf_hook_slow+0x63/0xeb [31891.491383] [<c04c46ea>] ? ip6_rcv_finish+0x0/0x8e [31891.496501] [<c04c4aff>] ipv6_rcv+0x387/0x47c [31891.501227] [<c04c46ea>] ? ip6_rcv_finish+0x0/0x8e [31891.506394] [<c0455065>] __netif_receive_skb+0x367/0x3b6 [31891.512081] [<c0455142>] process_backlog+0x8e/0x146 [31891.517328] [<c0455c3b>] net_rx_action+0x62/0x119 [31891.522402] [<c0232750>] __do_softirq+0x8b/0x10a [31891.527386] [<c02327fa>] do_softirq+0x2b/0x43 [31891.532078] [<c0232885>] run_ksoftirqd+0x73/0x155 [31891.537136] [<c0232812>] ? run_ksoftirqd+0x0/0x155 [31891.542294] [<c023fdbd>] kthread+0x61/0x66 [31891.546708] [<c023fd5c>] ? kthread+0x0/0x66 [31891.551211] [<c0202c7a>] kernel_thread_helper+0x6/0x1a [31891.556747] Rebooting in 10 seconds.. -- Simon Arlott -- 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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