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

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** Changed in: qemu (Debian)
       Status: Unknown => Incomplete

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

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

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.

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