apport information ** Tags added: apport-collected
** Description changed: This shows up occasionally when doing downloads of moderate size. apt- get update typically triggers it, as does updating plugins on the Wordpress installation running on the VPS. Note that this affects kernel versions at least as far back as 4.15.0-51, up to 4.15.0-55. 4.15.0-32, under which this bug report was taken does not display the problem. Kernel log output below: [ 342.864309] kernel BUG at /build/linux-aAn8fZ/linux-4.15.0/drivers/net/xen-netfront.c:909! [ 342.864329] invalid opcode: 0000 [#1] SMP NOPTI [ 342.864334] Modules linked in: iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_tcpudp xt_recent xt_conntrack nf_conntrack libcrc32c iptable_filter iptable_mangle intel_rapl sb_edac crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd glue_helper cryptd intel_rapl_perf sch_fq_codel ip_tables x_tables autofs4 [ 342.864373] CPU: 0 PID: 1730 Comm: http Tainted: G W 4.15.0-55-generic #60-Ubuntu [ 342.864385] RIP: e030:xennet_poll+0x8dc/0xbd0 [ 342.864389] RSP: e02b:ffff8880faa03de0 EFLAGS: 00010246 [ 342.864395] RAX: 0000000000000042 RBX: ffff888004914028 RCX: ffff8880f948f000 [ 342.864403] RDX: 00000000000000ed RSI: 0000000000000042 RDI: 0000000040000000 [ 342.864409] RBP: ffff8880faa03ed8 R08: ffff8880f1f46ac0 R09: 000000018020000e [ 342.864414] R10: ffff8880faa03d80 R11: ffff8880f44e4b00 R12: 000000000000baec [ 342.864419] R13: 000000000000baed R14: ffff8880f284f000 R15: ffff8880f3660500 [ 342.864431] FS: 00007f286c0482c0(0000) GS:ffff8880faa00000(0000) knlGS:0000000000000000 [ 342.864450] CS: e033 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 342.864457] CR2: 00007f265fb004d0 CR3: 00000000f45cc000 CR4: 0000000000002660 [ 342.864464] Call Trace: [ 342.864472] <IRQ> [ 342.864485] net_rx_action+0x140/0x3a0 [ 342.864513] __do_softirq+0xe4/0x2bb [ 342.864526] ? hypervisor_callback+0x25/0x40 [ 342.864542] irq_exit+0xb8/0xc0 [ 342.864556] xen_evtchn_do_upcall+0x30/0x40 [ 342.864578] xen_do_hypervisor_callback+0x29/0x40 [ 342.864584] </IRQ> [ 342.864592] RIP: e033:0x7f286bb4b25c [ 342.864598] RSP: e02b:00007fff734357c8 EFLAGS: 00000a03 [ 342.864606] RAX: 000000008d312d7f RBX: 0000000039db402a RCX: 00000000488fd63e [ 342.864614] RDX: 000000007a7f0825 RSI: 000000009a3e307c RDI: 00000000807b756b [ 342.864623] RBP: 000000005d804986 R08: 000000007a7fcd33 R09: 000000000137510b [ 342.864631] R10: 000000005c03dbab R11: 000000006d0d84dc R12: 00000000931464fb [ 342.864636] R13: 00000000aa89b1ac R14: 000000007cbb254f R15: 000000001e81958a [ 342.864643] Code: 83 f3 ff e9 33 fd ff ff 44 89 eb 44 89 ad 40 ff ff ff 44 8b 8d 50 ff ff ff 4d 89 e6 4c 8b ad 58 ff ff ff 83 c3 01 e9 78 fe ff ff <0f> 0b 48 89 d8 45 8d 6c 24 02 4c 89 f3 49 89 c6 e9 7b fc ff ff [ 342.864702] RIP: xennet_poll+0x8dc/0xbd0 RSP: ffff8880faa03de0 [ 342.864718] ---[ end trace 2a48579c5f763183 ]--- [ 342.864723] Kernel panic - not syncing: Fatal exception in interrupt [ 342.864750] Kernel Offset: disabled ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-32-generic 4.15.0-32.35 ProcVersionSignature: Ubuntu 4.15.0-32.35-generic 4.15.18 Uname: Linux 4.15.0-32-generic x86_64 AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Jul 24 10:40 seq crw-rw---- 1 root audio 116, 33 Jul 24 10:40 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Wed Jul 24 10:59:40 2019 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig' Lspci: Lsusb: Error: command ['lsusb'] failed with exit code 1: PciMultimedia: ProcEnviron: LANGUAGE=en_US:en TERM=xterm-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: root=/dev/xvda1 ro console=hvc0 quiet splash RelatedPackageVersions: linux-restricted-modules-4.15.0-32-generic N/A linux-backports-modules-4.15.0-32-generic N/A linux-firmware 1.173.9 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-08-15 (342 days ago) + --- + ProblemType: Bug + AlsaDevices: + total 0 + crw-rw---- 1 root audio 116, 1 Jul 24 10:40 seq + crw-rw---- 1 root audio 116, 33 Jul 24 10:40 timer + AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' + ApportVersion: 2.20.9-0ubuntu7.7 + Architecture: amd64 + ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' + AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: + DistroRelease: Ubuntu 18.04 + IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig' + Lspci: + + Lsusb: Error: command ['lsusb'] failed with exit code 1: + Package: linux (not installed) + PciMultimedia: + + ProcEnviron: + LANGUAGE=en_US:en + TERM=xterm-256color + PATH=(custom, no user) + LANG=en_US.UTF-8 + SHELL=/bin/bash + ProcFB: + + ProcKernelCmdLine: root=/dev/xvda1 ro console=hvc0 quiet splash + ProcVersionSignature: Ubuntu 4.15.0-32.35-generic 4.15.18 + RelatedPackageVersions: + linux-restricted-modules-4.15.0-32-generic N/A + linux-backports-modules-4.15.0-32-generic N/A + linux-firmware 1.173.9 + RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' + Tags: bionic + Uname: Linux 4.15.0-32-generic x86_64 + UpgradeStatus: Upgraded to bionic on 2018-08-15 (342 days ago) + UserGroups: + + _MarkForUpload: True ** Attachment added: "CRDA.txt" https://bugs.launchpad.net/bugs/1837751/+attachment/5279017/+files/CRDA.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1837751 Title: Kernel panic in xen-netfront on a VPS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1837751/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
