[Bug 1877052] Re: KVM Win 10 guest pauses after kernel upgrade

[Christian Ehrhardt ]

I haven't seen any similar reports nor any updates here.
Might I ask if you  have got any further since then?

Qemu 5.0 is available in Ubuntu 20.10 now, if you are willing to upgrade or 
install a test system that might be worth a try (new libvirt is still WIP, but 
unlikely to play a role here).
20.10 proposed would even have a 5.8.0.12.14 kernel since a kernel change might 
have been what started this that might be worth a check as well.

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1877052

Title:
  KVM Win 10 guest pauses after kernel upgrade

Status in QEMU:
  New
Status in qemu package in Ubuntu:
  Incomplete

Bug description:
  Hello!
  Unfortunately the bug has apparently reappeared. I have a Windows 10 running 
in a VM, which after my today's "apt upgrade" goes into pause mode after a few 
seconds of running time.

  Until yesterday it used to work and I was able to boot the VM. During
  the kernel update (from 5.4.0-28.33 to 5.4.0-29.34) the VM was active
  and then went into pause mode. Even after a reboot of my host system
  the problem still persists: the VM boots for a few seconds and then
  switches to pause mode.

  Current Kernel: Linux andreas-laptop 5.4.0-29-generic #33-Ubuntu SMP
  Wed Apr 29 14:32:27 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

  Maybe relevant logfile lines:
  2020-05-06T07:46:42.857574Z qemu-system-x86_64: warning: host doesn't support 
requested feature: MSR(48FH).vmx-exit-load-perf-global-ctrl [bit 12]
  2020-05-06T07:46:42.857718Z qemu-system-x86_64: warning: host doesn't support 
requested feature: MSR(490H).vmx-entry-load-perf-global-ctrl [bit 13]
  2020-05-06T07:46:42.860567Z qemu-system-x86_64: warning: host doesn't support 
requested feature: MSR(48FH).vmx-exit-load-perf-global-ctrl [bit 12]
  2020-05-06T07:46:42.860582Z qemu-system-x86_64: warning: host doesn't support 
requested feature: MSR(490H).vmx-entry-load-perf-global-ctrl [bit 13]
  2020-05-06T07:47:22.901057Z qemu-system-x86_64: terminating on signal 15 from 
pid 1593 (/usr/sbin/libvirtd)
  2020-05-06 07:47:23.101+0000: shutting down, reason=destroyed


  Kind regards,
     Andreas

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1877052/+subscriptions