[Qemu-devel] [Bug 1204697] Re: guest disk accesses lead to ATA errors + host vcpu0 unhandled wrmsr/rdmsr

[Christoph Anton Mitterer]

Also, when using SATA for the virtual disk,... it seems that it takes
much longer till it get's to the point where it (the initrd) tries to
mount root.

Till that point I see no errors... but then, after some time hanging at
the root mount... it starts with the ATA errors.

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1204697

Title:
  guest disk accesses lead to ATA errors + host vcpu0 unhandled
  wrmsr/rdmsr

Status in QEMU:
  New
Status in “qemu” package in Debian:
  Confirmed

Bug description:
  Hi.

  This is from http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=717724.

  Using Debian sid with 1.5.0-5 my Linux VMs (also Debian sid) are broken. When 
they boot I get gazillions of ATA errors inside the guest, as well as:
  [  242.479951] kvm [7790]: vcpu0 unhandled rdmsr: 0x345
  [  242.483683] kvm [7790]: vcpu0 unhandled wrmsr: 0x680 data 0
  [  242.483687] kvm [7790]: vcpu0 unhandled wrmsr: 0x6c0 data 0
  [  242.483689] kvm [7790]: vcpu0 unhandled wrmsr: 0x681 data 0
  [  242.483691] kvm [7790]: vcpu0 unhandled wrmsr: 0x6c1 data 0
  [  242.483693] kvm [7790]: vcpu0 unhandled wrmsr: 0x682 data 0
  [  242.483696] kvm [7790]: vcpu0 unhandled wrmsr: 0x6c2 data 0
  [  242.483698] kvm [7790]: vcpu0 unhandled wrmsr: 0x683 data 0
  [  242.483700] kvm [7790]: vcpu0 unhandled wrmsr: 0x6c3 data 0
  [  242.483702] kvm [7790]: vcpu0 unhandled wrmsr: 0x684 data 0
  [  242.483704] kvm [7790]: vcpu0 unhandled wrmsr: 0x6c4 data 0
  [  242.988307] kvm [7790]: vcpu0 unhandled rdmsr: 0xe8
  [  242.988312] kvm [7790]: vcpu0 unhandled rdmsr: 0xe7
  [  242.988314] kvm [7790]: vcpu0 unhandled rdmsr: 0xce
  [  242.988316] kvm [7790]: vcpu0 unhandled rdmsr: 0xce
  [  242.988318] kvm [7790]: vcpu0 unhandled rdmsr: 0x1ad
  [  242.988320] kvm [7790]: vcpu0 unhandled rdmsr: 0xce
  [  242.988322] kvm [7790]: vcpu0 unhandled rdmsr: 0xe8
  [  242.988324] kvm [7790]: vcpu0 unhandled rdmsr: 0xe7
  [  242.988598] kvm [7790]: vcpu0 unhandled rdmsr: 0xce

  in the host.

  Please have a look at the Debian bug, for screenshots and more info.
  The problem didn't occur in 1.5.0-4 and there were basically no changes 
inside the VM (i.e. no kernel upgrade or so).

  Thanks,
  Chris.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1204697/+subscriptions