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[Bug 1643533] Re: Frequent kernel panic crashes in Linux KVM guest (happens on different host hardware, so hardware fault unlikely)

 

Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.9 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'.

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/v4.9-rc6

** Changed in: linux (Ubuntu)
   Importance: Undecided => High

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Xenial)
       Status: New => Incomplete

** Changed in: linux (Ubuntu Xenial)
   Importance: Undecided => High

** Tags added: kernel-da-key

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/1643533

Title:
  Frequent kernel panic crashes in Linux KVM guest  (happens on
  different host hardware, so hardware fault unlikely)

Status in linux package in Ubuntu:
  Incomplete
Status in linux source package in Xenial:
  Incomplete

Bug description:
  With Ubuntu 16.04, I get frequent kernel panic crashes in my Linux KVM
  guest. After notifying the hosting company the machine was migrated to
  a different physical host which didn't fix the problem. A complete
  reinstall of Ubuntu 16.04 also didn't fix anything. Therefore, I
  suspect some sort of bug in the kernel and not a hardware fault or a
  corrupted install.

  /proc/version_signature: Ubuntu 4.4.0-47.68-generic 4.4.24

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-47-generic 4.4.0-47.68
  ProcVersionSignature: Ubuntu 4.4.0-47.68-generic 4.4.24
  Uname: Linux 4.4.0-47-generic x86_64
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Nov 21 12:51 seq
   crw-rw---- 1 root audio 116, 33 Nov 21 12:51 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: [Errno 2] No such file or directory: 'fuser'
  Date: Mon Nov 21 12:57:11 2016
  HibernationDevice: RESUME=UUID=704a373a-9754-4c59-bff2-001601f1c0bf
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb:
   Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd 
   Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: Hetzner vServer
  PciMultimedia:
   
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-47-generic root=UUID=fc92f1ac-ee98-4991-8a92-93451bd36d56 ro nomodeset elevator=noop net.ifnames=0
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-47-generic N/A
   linux-backports-modules-4.4.0-47-generic  N/A
   linux-firmware                            1.157.4
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: 1.8.2
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-i440fx-2.6
  dmi.modalias: dmi:bvnSeaBIOS:bvr1.8.2:bd04/01/2014:svnHetzner:pnvServer:pvr2:cvnQEMU:ct1:cvrpc-i440fx-2.6:
  dmi.product.name: vServer
  dmi.product.version: 2
  dmi.sys.vendor: Hetzner

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