A similar trace was reported upstream: http://www.spinics.net/lists/kernel/msg1832757.html
It was reported that the following commit fixes this issue: 15b23ef nfsd4: fix corruption of NFSv4 read data That commit was cc'd to stable, so it will get applied to to Trusty through the normal stable update process. Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.0 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.0-rc2-vivid/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1429302 Title: General protection fault kernel message from qemu-system-x86 Status in linux package in Ubuntu: Incomplete Bug description: Basically, the system completely logged up when this happened, we can see the following trace on the console. Then we reset the box. The logs below are from /var/log/kern.log It's not reproducible at the moment. The issue happened when we tried to stop a VM (qemu-system-x86) hosted on the box via OpenNebula VM management web interface. Is there a way to figure out if this is a known issue that fixed on later kernel version? root@node-101:~# cat /proc/version_signature Ubuntu 3.13.0-32.57-generic 3.13.11.4 root@node-101:~# cat /etc/issue Ubuntu 14.04.1 LTS \n \l Mar 5 15:29:22 node-101 kernel: [18293149.767254] general protection fault: 0000 [#1] SMP Mar 5 15:29:22 node-101 kernel: [18293149.810640] Modules linked in: ipmi_devintf ipmi_si nfnetlink bluetooth ebtable_filter vhost_net vhost macvtap macvlan nbd ipt_MASQUERADE iptable_nat nf_nat_ ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_ta bles bridge stp llc nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel gpi o_ich aes_x86_64 sb_edac lrw gf128mul edac_core glue_helper mei_me ablk_helper ioatdma mei joydev wmi cryptd lpc_ich mac_hid xfs libcrc32c lp parport raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid0 multipath linear raid1 igb i2c_algo_bit isci dca hid_generic libsas usbhid ptp hid ahci libahci scsi_transport_sas pps_core [last unloaded: ipmi_si] Mar 5 15:29:22 node-101 kernel: [18293150.361734] CPU: 18 PID: 16236 Comm: qemu-system-x86 Not tainted 3.13.0-32-generic #57-Ubuntu Mar 5 15:29:22 node-101 kernel: [18293150.448654] Hardware name: Supermicro SYS-F627R3-RTB+/X9DRFR, BIOS 3.0a 01/29/2014 Mar 5 15:29:22 node-101 kernel: [18293150.539953] task: ffff881026eadfc0 ti: ffff8813c7a84000 task.ti: ffff8813c7a84000 Mar 5 15:29:22 node-101 kernel: [18293150.629011] RIP: 0010:[<ffffffff811a4383>] [<ffffffff811a4383>] __kmalloc_node_track_caller+0x173/0x290 Mar 5 15:29:22 node-101 kernel: [18293150.740566] RSP: 0018:ffff8813c7a85bb8 EFLAGS: 00010246 Mar 5 15:29:22 node-101 kernel: [18293150.795788] RAX: 0000000000000000 RBX: ffff881dc796cd00 RCX: 00000000012267b0 Mar 5 15:29:22 node-101 kernel: [18293150.904469] RDX: 00000000012267af RSI: 0000000000000000 RDI: 00000000000172a0 Mar 5 15:29:22 node-101 kernel: [18293151.013444] RBP: ffff8813c7a85c00 R08: ffff88207fcd72a0 R09: ffff88103f803500 Mar 5 15:29:22 node-101 kernel: [18293151.121781] R10: ffff88103f803500 R11: 0000000000000293 R12: 00000000000106d0 Mar 5 15:29:22 node-101 kernel: [18293151.230534] R13: 00000000000002c0 R14: 2d70757465732220 R15: 00000000ffffffff Mar 5 15:29:22 node-101 kernel: [18293151.337326] FS: 00007f772b0ab980(0000) GS:ffff88207fcc0000(0000) knlGS:0000000000000000 Mar 5 15:29:22 node-101 kernel: [18293151.441748] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Mar 5 15:29:22 node-101 kernel: [18293151.484866] CR2: 00007f7473600000 CR3: 0000002015c11000 CR4: 00000000001427e0 Mar 5 15:29:22 node-101 kernel: [18293151.569286] Stack: Mar 5 15:29:22 node-101 kernel: [18293151.613617] ffff8820217c9808 ffff880b00000000 ffff88103f803500 ffffffff81610e7e Mar 5 15:29:22 node-101 kernel: [18293151.717684] ffff881dc796cd00 ffff8813c7a85c5f 00000000000004d0 00000000000002c0 Mar 5 15:29:22 node-101 kernel: [18293151.818459] 00000000ffffffff ffff8813c7a85c40 ffffffff816104f1 ffffffff81610e4e Mar 5 15:29:22 node-101 kernel: [18293151.923644] Call Trace: Mar 5 15:29:22 node-101 kernel: [18293151.974362] [<ffffffff81610e7e>] ? __alloc_skb+0x7e/0x2b0 Mar 5 15:29:22 node-101 kernel: [18293152.025346] [<ffffffff816104f1>] __kmalloc_reserve.isra.25+0x31/0x90 Mar 5 15:29:22 node-101 kernel: [18293152.073995] [<ffffffff81610e4e>] ? __alloc_skb+0x4e/0x2b0 Mar 5 15:29:22 node-101 kernel: [18293152.123817] [<ffffffff81610e7e>] __alloc_skb+0x7e/0x2b0 Mar 5 15:29:22 node-101 kernel: [18293152.171263] [<ffffffff8160beda>] sock_alloc_send_pskb+0x1aa/0x3e0 Mar 5 15:29:22 node-101 kernel: [18293152.216564] [<ffffffff816b6bcf>] unix_stream_sendmsg+0x26f/0x400 Mar 5 15:29:22 node-101 kernel: [18293152.262179] [<ffffffff81606b9e>] sock_aio_write+0xfe/0x130 Mar 5 15:29:22 node-101 kernel: [18293152.308666] [<ffffffff811bc3da>] do_sync_write+0x5a/0x90 Mar 5 15:29:22 node-101 kernel: [18293152.354563] [<ffffffff811bcc5d>] vfs_write+0x1ad/0x1f0 Mar 5 15:29:22 node-101 kernel: [18293152.398450] [<ffffffff811bd599>] SyS_write+0x49/0xa0 Mar 5 15:29:22 node-101 kernel: [18293152.440496] [<ffffffff8172c87f>] tracesys+0xe1/0xe6 Mar 5 15:29:22 node-101 kernel: [18293152.480144] Code: 4c 89 cf 44 89 e6 4c 89 4d c8 e8 69 a3 00 00 4c 8b 4d c8 49 89 c2 e9 01 ff ff ff 0f 1f 44 00 00 49 63 42 20 48 8d 4a 01 49 8b 3a <49> 8b 1c 06 4c 89 f0 65 48 0f c7 0f 0f 94 c0 84 c0 0f 84 da fe Mar 5 15:29:22 node-101 kernel: [18293152.603059] RIP [<ffffffff811a4383>] __kmalloc_node_track_caller+0x173/0x290 Mar 5 15:29:22 node-101 kernel: [18293152.683558] RSP <ffff8813c7a85bb8> Mar 5 15:29:22 node-101 kernel: [18293152.780836] ---[ end trace 240f6ac494da517a ]--- Mar 5 15:29:42 node-101 kernel: [18293169.810789] general protection fault: 0000 [#2] SMP Mar 5 15:29:42 node-101 kernel: [18293169.846313] Modules linked in: ipmi_devintf ipmi_si nfnetlink bluetooth ebtable_filter vhost_net vhost macvtap macvlan nbd ipt_MASQUERADE iptable_nat nf_nat_ ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_ta bles bridge stp llc nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel gpi o_ich aes_x86_64 sb_edac lrw gf128mul edac_core glue_helper mei_me ablk_helper ioatdma mei joydev wmi cryptd lpc_ich mac_hid xfs libcrc32c lp parport raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid0 multipath linear raid1 igb i2c_algo_bit isci dca hid_generic libsas usbhid ptp hid ahci libahci scsi_transport_sas pps_core [last unloaded: ipmi_si] Mar 5 15:29:42 node-101 kernel: [18293170.322073] CPU: 18 PID: 17330 Comm: ruby Tainted: G D 3.13.0-32-generic #57-Ubuntu Mar 5 15:29:42 node-101 kernel: [18293170.406604] Hardware name: Supermicro SYS-F627R3-RTB+/X9DRFR, BIOS 3.0a 01/29/2014 Mar 5 15:29:42 node-101 kernel: [18293170.493031] task: ffff88059fad17f0 ti: ffff881dc75cc000 task.ti: ffff881dc75cc000 Mar 5 15:29:42 node-101 kernel: [18293170.582261] RIP: 0010:[<ffffffff811a1e10>] [<ffffffff811a1e10>] kmem_cache_alloc_trace+0x80/0x1f0 Mar 5 15:29:42 node-101 kernel: [18293170.674900] RSP: 0018:ffff881dc75cde80 EFLAGS: 00010286 Mar 5 15:29:42 node-101 kernel: [18293170.723987] RAX: 0000000000000000 RBX: ffff881c80541500 RCX: 00000000012267b0 Mar 5 15:29:42 node-101 kernel: [18293170.820369] RDX: 00000000012267af RSI: 00000000000080d0 RDI: ffff88103f803500 Mar 5 15:29:42 node-101 kernel: [18293170.918226] RBP: ffff881dc75cdeb8 R08: 00000000000172a0 R09: ffff88103f803500 Mar 5 15:29:42 node-101 kernel: [18293171.016755] R10: ffffffff811c5b6e R11: 0000000000000206 R12: 2d70757465732220 Mar 5 15:29:42 node-101 kernel: [18293171.118553] R13: 00000000000080d0 R14: 0000000000000280 R15: ffff88103f803500 Mar 5 15:29:42 node-101 kernel: [18293171.222610] FS: 00007f9913902700(0000) GS:ffff88207fcc0000(0000) knlGS:0000000000000000 Mar 5 15:29:42 node-101 kernel: [18293171.324449] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Mar 5 15:29:42 node-101 kernel: [18293171.375434] CR2: 0000000001520260 CR3: 00000011c7500000 CR4: 00000000001427e0 Mar 5 15:29:42 node-101 kernel: [18293171.476269] Stack: Mar 5 15:29:42 node-101 kernel: [18293171.526136] ffff88103f803500 ffffffff811c5b6e ffff881c80541500 ffff881dc75cdf60 Mar 5 15:29:42 node-101 kernel: [18293171.624546] 0000000000000000 ffff881dc75cdf58 00000000015eb1c0 ffff881dc75cded0 Mar 5 15:29:42 node-101 kernel: [18293171.723060] ffffffff811c5b6e ffff88103f71afe8 ffff881dc75cdf10 ffffffff811c6086 Mar 5 15:29:42 node-101 kernel: [18293171.821162] Call Trace: Mar 5 15:29:42 node-101 kernel: [18293171.869051] [<ffffffff811c5b6e>] ? alloc_pipe_info+0x3e/0xb0 Mar 5 15:29:42 node-101 kernel: [18293171.917771] [<ffffffff811c5b6e>] alloc_pipe_info+0x3e/0xb0 Mar 5 15:29:42 node-101 kernel: [18293171.965901] [<ffffffff811c6086>] create_pipe_files+0x46/0x200 Mar 5 15:29:42 node-101 kernel: [18293172.015348] [<ffffffff8109ddf4>] ? vtime_account_user+0x54/0x60 Mar 5 15:29:42 node-101 kernel: [18293172.062270] [<ffffffff811c6274>] __do_pipe_flags+0x34/0xf0 Mar 5 15:29:42 node-101 kernel: [18293172.108545] [<ffffffff811c6440>] SyS_pipe+0x20/0xa0 Mar 5 15:29:42 node-101 kernel: [18293172.154926] [<ffffffff8172c87f>] tracesys+0xe1/0xe6 Mar 5 15:29:42 node-101 kernel: [18293172.199456] Code: dc 00 00 49 8b 50 08 4d 8b 20 49 8b 40 10 4d 85 e4 0f 84 14 01 00 00 48 85 c0 0f 84 0b 01 00 00 49 63 47 20 48 8d 4a 01 4d 8b 07 <49> 8b 1c 04 4c 89 e0 65 49 0f c7 08 0f 94 c0 84 c0 74 b9 49 63 Mar 5 15:29:42 node-101 kernel: [18293172.336809] RIP [<ffffffff811a1e10>] kmem_cache_alloc_trace+0x80/0x1f0 Mar 5 15:29:42 node-101 kernel: [18293172.382694] RSP <ffff881dc75cde80> Mar 5 15:29:42 node-101 kernel: [18293172.425976] ---[ end trace 240f6ac494da517b ]--- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1429302/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
