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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1307473

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

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

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https://bugs.launchpad.net/bugs/1307473

Title:
  guest hang due to missing clock interrupt

Status in QEMU:
  New
Status in “linux” package in Ubuntu:
  Incomplete
Status in “qemu” package in Ubuntu:
  Confirmed

Bug description:
  
  I noticed on 2 different systems that after upgrade from precise to latest trusty VMs are crashing:

  - in case of Windows VMs I'm getting BSOD with error message: "A clock interrupt was not received on a secondary processor within the allocated time interval."
  - On linux VMs I'm noticing "hrtimer: interrupt took 2992229 ns" messages 
  - On some proprietary virtual appliances I'm noticing crashes an due to missing timer interrupts

  QEMU version is:
  QEMU emulator version 1.7.91 (Debian 2.0.0~rc1+dfsg-0ubuntu3)

  Full command line:

  qemu-system-x86_64 -enable-kvm -name win7eval -S -machine pc-
  i440fx-1.7,accel=kvm,usb=off -cpu host -m 4096 -realtime mlock=off
  -smp 4,sockets=1,cores=4,threads=1 -uuid 05e5089a-
  4aa1-6bb2-ef06-a6666b4d020a -no-user-config -nodefaults -chardev
  socket,id=charmonitor,path=/var/lib/libvirt/qemu/win7eval.monitor,server,nowait
  -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime
  -no-shutdown -boot strict=on -device piix3-usb-
  uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive
  file=/var/vm/win7eval.qcow2,if=none,id=drive-virtio-disk0,format=qcow2
  -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-
  disk0,id=virtio-disk0,bootindex=1 -drive
  file=/home/damarion/iso/7600.16385.090713-1255_x86fre_enterprise_en-
  us_EVAL_Eval_Enterprise-GRMCENEVAL_EN_DVD.iso,if=none,id=drive-
  ide0-0-0,readonly=on,format=raw -device ide-cd,bus=ide.0,unit=0,drive
  =drive-ide0-0-0,id=ide0-0-0 -drive file=/home/damarion/iso/virtio-
  win-0.1-74.iso,if=none,id=drive-ide0-1-0,readonly=on,format=raw
  -device ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0
  -netdev tap,fd=24,id=hostnet0 -device
  e1000,netdev=hostnet0,id=net0,mac=52:54:00:38:31:0a,bus=pci.0,addr=0x3
  -chardev pty,id=charserial0 -device isa-
  serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0
  -vnc 127.0.0.1:1 -device VGA,id=video0,bus=pci.0,addr=0x2 -device
  virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5

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