Re: amd64, v3.6.0: Kernel panic + BUG at net/netfilter/nf_conntrack_core.c:220!
I will be doing much wider testing on 3.6 this week, will keep you updated if I see this issue again. I don't see a logical way into that trap myself and looking at the revision history we've been running this code path for a very long time without issue. The machine in question has a fairly high MTBF which is why I thought this odd, but it is most likely random memory corruption. Thanks! Ian Applegate On Tue, Oct 16, 2012 at 9:27 AM, Pablo Neira Ayuso wrote: > On Fri, Oct 12, 2012 at 01:32:06AM +0200, Pablo Neira Ayuso wrote: >> On Thu, Oct 11, 2012 at 11:27:33PM +0200, Borislav Petkov wrote: >> > On Thu, Oct 11, 2012 at 12:13:33PM -0700, Ian Applegate wrote: >> > > On machines serving mainly http traffic we are seeing the following >> > > panic, which is not yet reproducible. >> > >> > Must be this BUG_ON: >> > >> > if (!nf_ct_is_confirmed(ct)) { >> > >> > BUG_ON(hlist_nulls_unhashed(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode)); >> > hlist_nulls_del_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode); >> > } >> >> At quick glance, I think we're hitting a memory corruption, I don't >> see by now any sane code path to reach that bugtrap. > > Did you manage to obtain more information regarding this bug? > > I don't find any recent change in the conntrack source that may lead > us to hit that. > > Thanks. > >> More comments below: >> >> > Spamming some more lists and leaving the rest for reference. >> > >> > > >> > > >> > > [180926.566743] [ cut here ] >> > > [180926.572034] kernel BUG at net/netfilter/nf_conntrack_core.c:220! >> > > [180926.578873] invalid opcode: [#1] SMP >> > > [180926.583594] Modules linked in: xfs exportfs ipmi_devintf ipmi_si >> > > ipmi_msghandler dm_mod md_mod nf_conntr >> > > ack_ipv6 nf_defrag_ipv6 ip6table_filter ip6table_raw ip6_tables >> > > nf_conntrack_ipv4 nf_defrag_ipv4 xt_tcpudp x >> > > t_conntrack xt_multiport iptable_filter xt_NOTRACK nf_conntrack >> > > iptable_raw ip_tables x_tables nfsv4 auth_rp >> > > cgss fuse nfsv3 nfs_acl nfs fscache lockd sunrpc sfc mtd i2c_algo_bit >> > > i2c_core mdio igb dca uhci_hcd coretem >> > > p acpi_cpufreq kvm_intel kvm crc32c_intel aesni_intel ablk_helper >> > > cryptd aes_x86_64 aes_generic evdev sd_mod >> > > crc_t10dif mperf snd_pcm ahci snd_timer tpm_tis microcode snd tpm >> > > libahci tpm_bios soundcore libata snd_pag >> > > e_alloc pcspkr ehci_hcd lpc_ich usbcore mfd_core hpsa scsi_mod >> > > usb_common button processor thermal_sys >> > > [180926.657762] CPU 12 >> > > [180926.660008] Pid: 5948, comm: nginx-fl Not tainted 3.6.0-cloudflare >> > > #1 HP ProLiant DL180 G6 >> > > [180926.669820] RIP: 0010:[] [] >> > > destroy_conntrack+0x55/0xa9 [nf_conntrack] >> > > [180926.680871] RSP: 0018:8805bd73fbb8 EFLAGS: 00010246 >> > > [180926.686930] RAX: RBX: 8806b6f56c30 RCX: >> > > 8805bd73fc48 >> > > [180926.695055] RDX: RSI: 0006 RDI: >> > > 8806b6f56c30 >> > > [180926.703179] RBP: 81651780 R08: 000172e0 R09: >> > > 812cef91 >> > > [180926.711304] R10: dead00200200 R11: dead00100100 R12: >> > > 8806b6f56c30 >> > > [180926.727451] R13: R14: a02d6030 R15: >> > > >> > > [180926.735575] FS: 7f382cdb2710() GS:880627cc() >> > > knlGS: >> > > [180926.744766] CS: 0010 DS: ES: CR0: 80050033 >> > > [180926.751312] CR2: ff600400 CR3: 0005bd8d3000 CR4: >> > > 07e0 >> > > [180926.759436] DR0: DR1: DR2: >> > > >> > > [180926.767560] DR3: DR6: 0ff0 DR7: >> > > 0400 >> > > [180926.775686] Process nginx-fl (pid: 5948, threadinfo >> > > 8805bd73e000, task 8805c9755960) >> > > [180926.785265] Stack: >> > > [180926.787634] 81651780 8802720c2900 >> > > a02cde78 >> > > [180926.796087] 81651ec0 a02d6030 bff0efab >> > > 8805 >> > > [180926.804532] 000288050002 00030014 00140003 >> > > 06ff88060002 >> > > [180926.812985] Call Trace: >> > > [180926.815845] [] ? nf_conntrack_in+0x4ed/0x5bc >> > > [nf_conntrack] >> >> Here below the trace shows the output path to close a tcp socket. But >> the line above refers to a conntrack function that is called in the >> input path. >> >> If this process is just acting as plain http server, this backtrace >> doesn't seem consistent to me. >> >> > > [180926.824069] [] ? nf_iterate+0x41/0x77 >> > > [180926.830131] [] ? ip_options_echo+0x2ed/0x2ed >> > > [180926.836873] [] ? nf_hook_slow+0x68/0xfd >> > > [180926.843127] [] ? ip_options_echo+0x2ed/0x2ed >> > > [180926.849866] [] ? __ip_local_out+0x98/0x9d >> > > [180926.856315] [] ? ip_local_out+0x9/0x19 >> > > [180926.862465] [] ? tcp_transmit_skb+0x7ae/0x7f1 >> > > [180926.869305] [] ? virt_to_
Re: amd64, v3.6.0: Kernel panic + BUG at net/netfilter/nf_conntrack_core.c:220!
On Fri, Oct 12, 2012 at 01:32:06AM +0200, Pablo Neira Ayuso wrote: > On Thu, Oct 11, 2012 at 11:27:33PM +0200, Borislav Petkov wrote: > > On Thu, Oct 11, 2012 at 12:13:33PM -0700, Ian Applegate wrote: > > > On machines serving mainly http traffic we are seeing the following > > > panic, which is not yet reproducible. > > > > Must be this BUG_ON: > > > > if (!nf_ct_is_confirmed(ct)) { > > > > BUG_ON(hlist_nulls_unhashed(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode)); > > hlist_nulls_del_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode); > > } > > At quick glance, I think we're hitting a memory corruption, I don't > see by now any sane code path to reach that bugtrap. Did you manage to obtain more information regarding this bug? I don't find any recent change in the conntrack source that may lead us to hit that. Thanks. > More comments below: > > > Spamming some more lists and leaving the rest for reference. > > > > > > > > > > > [180926.566743] [ cut here ] > > > [180926.572034] kernel BUG at net/netfilter/nf_conntrack_core.c:220! > > > [180926.578873] invalid opcode: [#1] SMP > > > [180926.583594] Modules linked in: xfs exportfs ipmi_devintf ipmi_si > > > ipmi_msghandler dm_mod md_mod nf_conntr > > > ack_ipv6 nf_defrag_ipv6 ip6table_filter ip6table_raw ip6_tables > > > nf_conntrack_ipv4 nf_defrag_ipv4 xt_tcpudp x > > > t_conntrack xt_multiport iptable_filter xt_NOTRACK nf_conntrack > > > iptable_raw ip_tables x_tables nfsv4 auth_rp > > > cgss fuse nfsv3 nfs_acl nfs fscache lockd sunrpc sfc mtd i2c_algo_bit > > > i2c_core mdio igb dca uhci_hcd coretem > > > p acpi_cpufreq kvm_intel kvm crc32c_intel aesni_intel ablk_helper > > > cryptd aes_x86_64 aes_generic evdev sd_mod > > > crc_t10dif mperf snd_pcm ahci snd_timer tpm_tis microcode snd tpm > > > libahci tpm_bios soundcore libata snd_pag > > > e_alloc pcspkr ehci_hcd lpc_ich usbcore mfd_core hpsa scsi_mod > > > usb_common button processor thermal_sys > > > [180926.657762] CPU 12 > > > [180926.660008] Pid: 5948, comm: nginx-fl Not tainted 3.6.0-cloudflare > > > #1 HP ProLiant DL180 G6 > > > [180926.669820] RIP: 0010:[] [] > > > destroy_conntrack+0x55/0xa9 [nf_conntrack] > > > [180926.680871] RSP: 0018:8805bd73fbb8 EFLAGS: 00010246 > > > [180926.686930] RAX: RBX: 8806b6f56c30 RCX: > > > 8805bd73fc48 > > > [180926.695055] RDX: RSI: 0006 RDI: > > > 8806b6f56c30 > > > [180926.703179] RBP: 81651780 R08: 000172e0 R09: > > > 812cef91 > > > [180926.711304] R10: dead00200200 R11: dead00100100 R12: > > > 8806b6f56c30 > > > [180926.727451] R13: R14: a02d6030 R15: > > > > > > [180926.735575] FS: 7f382cdb2710() GS:880627cc() > > > knlGS: > > > [180926.744766] CS: 0010 DS: ES: CR0: 80050033 > > > [180926.751312] CR2: ff600400 CR3: 0005bd8d3000 CR4: > > > 07e0 > > > [180926.759436] DR0: DR1: DR2: > > > > > > [180926.767560] DR3: DR6: 0ff0 DR7: > > > 0400 > > > [180926.775686] Process nginx-fl (pid: 5948, threadinfo > > > 8805bd73e000, task 8805c9755960) > > > [180926.785265] Stack: > > > [180926.787634] 81651780 8802720c2900 > > > a02cde78 > > > [180926.796087] 81651ec0 a02d6030 bff0efab > > > 8805 > > > [180926.804532] 000288050002 00030014 00140003 > > > 06ff88060002 > > > [180926.812985] Call Trace: > > > [180926.815845] [] ? nf_conntrack_in+0x4ed/0x5bc > > > [nf_conntrack] > > Here below the trace shows the output path to close a tcp socket. But > the line above refers to a conntrack function that is called in the > input path. > > If this process is just acting as plain http server, this backtrace > doesn't seem consistent to me. > > > > [180926.824069] [] ? nf_iterate+0x41/0x77 > > > [180926.830131] [] ? ip_options_echo+0x2ed/0x2ed > > > [180926.836873] [] ? nf_hook_slow+0x68/0xfd > > > [180926.843127] [] ? ip_options_echo+0x2ed/0x2ed > > > [180926.849866] [] ? __ip_local_out+0x98/0x9d > > > [180926.856315] [] ? ip_local_out+0x9/0x19 > > > [180926.862465] [] ? tcp_transmit_skb+0x7ae/0x7f1 > > > [180926.869305] [] ? virt_to_head_page+0x9/0x2c > > > [180926.875949] [] ? tcp_send_active_reset+0xd5/0x101 > > > [180926.883175] [] ? tcp_close+0x118/0x354 > > > [180926.889334] [] ? inet_release+0x75/0x7b > > > [180926.895591] [] ? sock_release+0x19/0x73 > > > [180926.901845] [] ? sock_close+0x22/0x27 > > > [180926.907906] [] ? __fput+0xe9/0x1ae > > > [180926.913677] [] ? task_work_run+0x53/0x67 > > > [180926.920031] [] ? do_notify_resume+0x79/0x8d > > > [180926.926673] [] ? int_signal+0x12/0x17 > > > [180926.932732] Code: 05 48 89 df ff d0 48 c7 c7 30 66 2d a0 e8 11 b0 > >
Re: amd64, v3.6.0: Kernel panic + BUG at net/netfilter/nf_conntrack_core.c:220!
On Thu, Oct 11, 2012 at 11:27:33PM +0200, Borislav Petkov wrote: > On Thu, Oct 11, 2012 at 12:13:33PM -0700, Ian Applegate wrote: > > On machines serving mainly http traffic we are seeing the following > > panic, which is not yet reproducible. > > Must be this BUG_ON: > > if (!nf_ct_is_confirmed(ct)) { > > BUG_ON(hlist_nulls_unhashed(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode)); > hlist_nulls_del_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode); > } At quick glance, I think we're hitting a memory corruption, I don't see by now any sane code path to reach that bugtrap. More comments below: > Spamming some more lists and leaving the rest for reference. > > > > > > > [180926.566743] [ cut here ] > > [180926.572034] kernel BUG at net/netfilter/nf_conntrack_core.c:220! > > [180926.578873] invalid opcode: [#1] SMP > > [180926.583594] Modules linked in: xfs exportfs ipmi_devintf ipmi_si > > ipmi_msghandler dm_mod md_mod nf_conntr > > ack_ipv6 nf_defrag_ipv6 ip6table_filter ip6table_raw ip6_tables > > nf_conntrack_ipv4 nf_defrag_ipv4 xt_tcpudp x > > t_conntrack xt_multiport iptable_filter xt_NOTRACK nf_conntrack > > iptable_raw ip_tables x_tables nfsv4 auth_rp > > cgss fuse nfsv3 nfs_acl nfs fscache lockd sunrpc sfc mtd i2c_algo_bit > > i2c_core mdio igb dca uhci_hcd coretem > > p acpi_cpufreq kvm_intel kvm crc32c_intel aesni_intel ablk_helper > > cryptd aes_x86_64 aes_generic evdev sd_mod > > crc_t10dif mperf snd_pcm ahci snd_timer tpm_tis microcode snd tpm > > libahci tpm_bios soundcore libata snd_pag > > e_alloc pcspkr ehci_hcd lpc_ich usbcore mfd_core hpsa scsi_mod > > usb_common button processor thermal_sys > > [180926.657762] CPU 12 > > [180926.660008] Pid: 5948, comm: nginx-fl Not tainted 3.6.0-cloudflare > > #1 HP ProLiant DL180 G6 > > [180926.669820] RIP: 0010:[] [] > > destroy_conntrack+0x55/0xa9 [nf_conntrack] > > [180926.680871] RSP: 0018:8805bd73fbb8 EFLAGS: 00010246 > > [180926.686930] RAX: RBX: 8806b6f56c30 RCX: > > 8805bd73fc48 > > [180926.695055] RDX: RSI: 0006 RDI: > > 8806b6f56c30 > > [180926.703179] RBP: 81651780 R08: 000172e0 R09: > > 812cef91 > > [180926.711304] R10: dead00200200 R11: dead00100100 R12: > > 8806b6f56c30 > > [180926.727451] R13: R14: a02d6030 R15: > > > > [180926.735575] FS: 7f382cdb2710() GS:880627cc() > > knlGS: > > [180926.744766] CS: 0010 DS: ES: CR0: 80050033 > > [180926.751312] CR2: ff600400 CR3: 0005bd8d3000 CR4: > > 07e0 > > [180926.759436] DR0: DR1: DR2: > > > > [180926.767560] DR3: DR6: 0ff0 DR7: > > 0400 > > [180926.775686] Process nginx-fl (pid: 5948, threadinfo > > 8805bd73e000, task 8805c9755960) > > [180926.785265] Stack: > > [180926.787634] 81651780 8802720c2900 > > a02cde78 > > [180926.796087] 81651ec0 a02d6030 bff0efab > > 8805 > > [180926.804532] 000288050002 00030014 00140003 > > 06ff88060002 > > [180926.812985] Call Trace: > > [180926.815845] [] ? nf_conntrack_in+0x4ed/0x5bc > > [nf_conntrack] Here below the trace shows the output path to close a tcp socket. But the line above refers to a conntrack function that is called in the input path. If this process is just acting as plain http server, this backtrace doesn't seem consistent to me. > > [180926.824069] [] ? nf_iterate+0x41/0x77 > > [180926.830131] [] ? ip_options_echo+0x2ed/0x2ed > > [180926.836873] [] ? nf_hook_slow+0x68/0xfd > > [180926.843127] [] ? ip_options_echo+0x2ed/0x2ed > > [180926.849866] [] ? __ip_local_out+0x98/0x9d > > [180926.856315] [] ? ip_local_out+0x9/0x19 > > [180926.862465] [] ? tcp_transmit_skb+0x7ae/0x7f1 > > [180926.869305] [] ? virt_to_head_page+0x9/0x2c > > [180926.875949] [] ? tcp_send_active_reset+0xd5/0x101 > > [180926.883175] [] ? tcp_close+0x118/0x354 > > [180926.889334] [] ? inet_release+0x75/0x7b > > [180926.895591] [] ? sock_release+0x19/0x73 > > [180926.901845] [] ? sock_close+0x22/0x27 > > [180926.907906] [] ? __fput+0xe9/0x1ae > > [180926.913677] [] ? task_work_run+0x53/0x67 > > [180926.920031] [] ? do_notify_resume+0x79/0x8d > > [180926.926673] [] ? int_signal+0x12/0x17 > > [180926.932732] Code: 05 48 89 df ff d0 48 c7 c7 30 66 2d a0 e8 11 b0 > > 07 e1 48 89 df e8 72 25 00 00 48 8b 43 > > 78 a8 08 75 2a 48 8b 53 10 48 85 d2 75 04 <0f> 0b eb fe 48 8b 43 08 > > 48 89 02 a8 01 75 04 48 89 50 08 48 be > > [180926.954788] RIP [] destroy_conntrack+0x55/0xa9 > > [nf_conntrack] > > [180926.963217] RSP > > [180926.967700] ---[ end trace 54a660a52afd5820 ]--- > > [180926.973038] Kernel panic - not syncing: Fatal exception in interrupt > > > > --- > > Ian Applega
Re: amd64, v3.6.0: Kernel panic + BUG at net/netfilter/nf_conntrack_core.c:220!
On Thu, Oct 11, 2012 at 12:13:33PM -0700, Ian Applegate wrote: > On machines serving mainly http traffic we are seeing the following > panic, which is not yet reproducible. Must be this BUG_ON: if (!nf_ct_is_confirmed(ct)) { BUG_ON(hlist_nulls_unhashed(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode)); hlist_nulls_del_rcu(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode); } Spamming some more lists and leaving the rest for reference. > > > [180926.566743] [ cut here ] > [180926.572034] kernel BUG at net/netfilter/nf_conntrack_core.c:220! > [180926.578873] invalid opcode: [#1] SMP > [180926.583594] Modules linked in: xfs exportfs ipmi_devintf ipmi_si > ipmi_msghandler dm_mod md_mod nf_conntr > ack_ipv6 nf_defrag_ipv6 ip6table_filter ip6table_raw ip6_tables > nf_conntrack_ipv4 nf_defrag_ipv4 xt_tcpudp x > t_conntrack xt_multiport iptable_filter xt_NOTRACK nf_conntrack > iptable_raw ip_tables x_tables nfsv4 auth_rp > cgss fuse nfsv3 nfs_acl nfs fscache lockd sunrpc sfc mtd i2c_algo_bit > i2c_core mdio igb dca uhci_hcd coretem > p acpi_cpufreq kvm_intel kvm crc32c_intel aesni_intel ablk_helper > cryptd aes_x86_64 aes_generic evdev sd_mod > crc_t10dif mperf snd_pcm ahci snd_timer tpm_tis microcode snd tpm > libahci tpm_bios soundcore libata snd_pag > e_alloc pcspkr ehci_hcd lpc_ich usbcore mfd_core hpsa scsi_mod > usb_common button processor thermal_sys > [180926.657762] CPU 12 > [180926.660008] Pid: 5948, comm: nginx-fl Not tainted 3.6.0-cloudflare > #1 HP ProLiant DL180 G6 > [180926.669820] RIP: 0010:[] [] > destroy_conntrack+0x55/0xa9 [nf_conntrack] > [180926.680871] RSP: 0018:8805bd73fbb8 EFLAGS: 00010246 > [180926.686930] RAX: RBX: 8806b6f56c30 RCX: > 8805bd73fc48 > [180926.695055] RDX: RSI: 0006 RDI: > 8806b6f56c30 > [180926.703179] RBP: 81651780 R08: 000172e0 R09: > 812cef91 > [180926.711304] R10: dead00200200 R11: dead00100100 R12: > 8806b6f56c30 > [180926.727451] R13: R14: a02d6030 R15: > > [180926.735575] FS: 7f382cdb2710() GS:880627cc() > knlGS: > [180926.744766] CS: 0010 DS: ES: CR0: 80050033 > [180926.751312] CR2: ff600400 CR3: 0005bd8d3000 CR4: > 07e0 > [180926.759436] DR0: DR1: DR2: > > [180926.767560] DR3: DR6: 0ff0 DR7: > 0400 > [180926.775686] Process nginx-fl (pid: 5948, threadinfo > 8805bd73e000, task 8805c9755960) > [180926.785265] Stack: > [180926.787634] 81651780 8802720c2900 > a02cde78 > [180926.796087] 81651ec0 a02d6030 bff0efab > 8805 > [180926.804532] 000288050002 00030014 00140003 > 06ff88060002 > [180926.812985] Call Trace: > [180926.815845] [] ? nf_conntrack_in+0x4ed/0x5bc > [nf_conntrack] > [180926.824069] [] ? nf_iterate+0x41/0x77 > [180926.830131] [] ? ip_options_echo+0x2ed/0x2ed > [180926.836873] [] ? nf_hook_slow+0x68/0xfd > [180926.843127] [] ? ip_options_echo+0x2ed/0x2ed > [180926.849866] [] ? __ip_local_out+0x98/0x9d > [180926.856315] [] ? ip_local_out+0x9/0x19 > [180926.862465] [] ? tcp_transmit_skb+0x7ae/0x7f1 > [180926.869305] [] ? virt_to_head_page+0x9/0x2c > [180926.875949] [] ? tcp_send_active_reset+0xd5/0x101 > [180926.883175] [] ? tcp_close+0x118/0x354 > [180926.889334] [] ? inet_release+0x75/0x7b > [180926.895591] [] ? sock_release+0x19/0x73 > [180926.901845] [] ? sock_close+0x22/0x27 > [180926.907906] [] ? __fput+0xe9/0x1ae > [180926.913677] [] ? task_work_run+0x53/0x67 > [180926.920031] [] ? do_notify_resume+0x79/0x8d > [180926.926673] [] ? int_signal+0x12/0x17 > [180926.932732] Code: 05 48 89 df ff d0 48 c7 c7 30 66 2d a0 e8 11 b0 > 07 e1 48 89 df e8 72 25 00 00 48 8b 43 > 78 a8 08 75 2a 48 8b 53 10 48 85 d2 75 04 <0f> 0b eb fe 48 8b 43 08 > 48 89 02 a8 01 75 04 48 89 50 08 48 be > [180926.954788] RIP [] destroy_conntrack+0x55/0xa9 > [nf_conntrack] > [180926.963217] RSP > [180926.967700] ---[ end trace 54a660a52afd5820 ]--- > [180926.973038] Kernel panic - not syncing: Fatal exception in interrupt > > --- > Ian Applegate > CloudFlare > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- Regards/Gruss, Boris. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
amd64, v3.6.0: Kernel panic + BUG at net/netfilter/nf_conntrack_core.c:220!
On machines serving mainly http traffic we are seeing the following panic, which is not yet reproducible. [180926.566743] [ cut here ] [180926.572034] kernel BUG at net/netfilter/nf_conntrack_core.c:220! [180926.578873] invalid opcode: [#1] SMP [180926.583594] Modules linked in: xfs exportfs ipmi_devintf ipmi_si ipmi_msghandler dm_mod md_mod nf_conntr ack_ipv6 nf_defrag_ipv6 ip6table_filter ip6table_raw ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_tcpudp x t_conntrack xt_multiport iptable_filter xt_NOTRACK nf_conntrack iptable_raw ip_tables x_tables nfsv4 auth_rp cgss fuse nfsv3 nfs_acl nfs fscache lockd sunrpc sfc mtd i2c_algo_bit i2c_core mdio igb dca uhci_hcd coretem p acpi_cpufreq kvm_intel kvm crc32c_intel aesni_intel ablk_helper cryptd aes_x86_64 aes_generic evdev sd_mod crc_t10dif mperf snd_pcm ahci snd_timer tpm_tis microcode snd tpm libahci tpm_bios soundcore libata snd_pag e_alloc pcspkr ehci_hcd lpc_ich usbcore mfd_core hpsa scsi_mod usb_common button processor thermal_sys [180926.657762] CPU 12 [180926.660008] Pid: 5948, comm: nginx-fl Not tainted 3.6.0-cloudflare #1 HP ProLiant DL180 G6 [180926.669820] RIP: 0010:[] [] destroy_conntrack+0x55/0xa9 [nf_conntrack] [180926.680871] RSP: 0018:8805bd73fbb8 EFLAGS: 00010246 [180926.686930] RAX: RBX: 8806b6f56c30 RCX: 8805bd73fc48 [180926.695055] RDX: RSI: 0006 RDI: 8806b6f56c30 [180926.703179] RBP: 81651780 R08: 000172e0 R09: 812cef91 [180926.711304] R10: dead00200200 R11: dead00100100 R12: 8806b6f56c30 [180926.727451] R13: R14: a02d6030 R15: [180926.735575] FS: 7f382cdb2710() GS:880627cc() knlGS: [180926.744766] CS: 0010 DS: ES: CR0: 80050033 [180926.751312] CR2: ff600400 CR3: 0005bd8d3000 CR4: 07e0 [180926.759436] DR0: DR1: DR2: [180926.767560] DR3: DR6: 0ff0 DR7: 0400 [180926.775686] Process nginx-fl (pid: 5948, threadinfo 8805bd73e000, task 8805c9755960) [180926.785265] Stack: [180926.787634] 81651780 8802720c2900 a02cde78 [180926.796087] 81651ec0 a02d6030 bff0efab 8805 [180926.804532] 000288050002 00030014 00140003 06ff88060002 [180926.812985] Call Trace: [180926.815845] [] ? nf_conntrack_in+0x4ed/0x5bc [nf_conntrack] [180926.824069] [] ? nf_iterate+0x41/0x77 [180926.830131] [] ? ip_options_echo+0x2ed/0x2ed [180926.836873] [] ? nf_hook_slow+0x68/0xfd [180926.843127] [] ? ip_options_echo+0x2ed/0x2ed [180926.849866] [] ? __ip_local_out+0x98/0x9d [180926.856315] [] ? ip_local_out+0x9/0x19 [180926.862465] [] ? tcp_transmit_skb+0x7ae/0x7f1 [180926.869305] [] ? virt_to_head_page+0x9/0x2c [180926.875949] [] ? tcp_send_active_reset+0xd5/0x101 [180926.883175] [] ? tcp_close+0x118/0x354 [180926.889334] [] ? inet_release+0x75/0x7b [180926.895591] [] ? sock_release+0x19/0x73 [180926.901845] [] ? sock_close+0x22/0x27 [180926.907906] [] ? __fput+0xe9/0x1ae [180926.913677] [] ? task_work_run+0x53/0x67 [180926.920031] [] ? do_notify_resume+0x79/0x8d [180926.926673] [] ? int_signal+0x12/0x17 [180926.932732] Code: 05 48 89 df ff d0 48 c7 c7 30 66 2d a0 e8 11 b0 07 e1 48 89 df e8 72 25 00 00 48 8b 43 78 a8 08 75 2a 48 8b 53 10 48 85 d2 75 04 <0f> 0b eb fe 48 8b 43 08 48 89 02 a8 01 75 04 48 89 50 08 48 be [180926.954788] RIP [] destroy_conntrack+0x55/0xa9 [nf_conntrack] [180926.963217] RSP [180926.967700] ---[ end trace 54a660a52afd5820 ]--- [180926.973038] Kernel panic - not syncing: Fatal exception in interrupt --- Ian Applegate CloudFlare -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/