kernel-packages team mailing list archive

[Matt Jarvis <matt.jarvis@xxxxxxxxxxxxxxxxx>]

This may be the same thing we are seeing on OpenStack compute nodes
since upgrade. Hard crash, no output to logs, local console occasionally
shows a kernel panic ending with Fatal Exception in Interrupt, shutting
down CPU's.

We are seeing this reliably across 10 nodes which have been upgraded,
and it doesn't happen on other nodes which are all running
3.13.0-62-generic.

Have tried downgrading QEMU to 2.0, and OpenVswitch to
2.0.2-0ubuntu0.14.04.2, neither of which stop the problem happening.
Hardware has also been stress tested and no memory or CPU issues.

Still trying to find a reliable recreate, but seems to be connected with
live migrations happening on other machines, where the node that crashes
is hosting virtual instances on the same virtual networks on which the
migration is happening.

** Attachment added: "Screen Shot 2016-01-21 at 05.15.02.png"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1535088/+attachment/4553994/+files/Screen%20Shot%202016-01-21%20at%2005.15.02.png

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https://bugs.launchpad.net/bugs/1535088

Title:
  Linux Generic Kernel x -43

Status in linux package in Ubuntu:
  Invalid

Bug description:
  
  kernel panic - not syncing : fatal exception in interrupt. shutting down cpus with NMI drm_kms_helper : panic occurred, switching back to text console.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-74-generic 3.13.0-74.118
  ProcVersionSignature: Ubuntu 3.13.0-74.118-generic 3.13.11-ckt30
  Uname: Linux 3.13.0-74-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  omniedge   2249 F.... pulseaudio
   /dev/snd/controlC0:  omniedge   2249 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun Jan 17 08:22:29 2016
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2015-01-29 (353 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: Dell Inc. Inspiron 3542
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-74-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-74-generic N/A
   linux-backports-modules-3.13.0-74-generic  N/A
   linux-firmware                             1.127.19
  SourcePackage: linux
  StagingDrivers: rts5139
  UpgradeStatus: No upgrade log present (probably fresh install)
  WifiSyslog:
   
  dmi.bios.date: 11/14/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A05
  dmi.board.name: 02RD2H
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A05
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: Not Specified
  dmi.modalias: dmi:bvnDellInc.:bvrA05:bd11/14/2014:svnDellInc.:pnInspiron3542:pvrNotSpecified:rvnDellInc.:rn02RD2H:rvrA05:cvnDellInc.:ct8:cvrNotSpecified:
  dmi.product.name: Inspiron 3542
  dmi.product.version: Not Specified
  dmi.sys.vendor: Dell Inc.

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