[Qemu-devel] [Bug 1769189] Re: Issue with qemu 2.12.0 + SATA

["François Guerraz" <kubrick@fgv6.net>]

I have done some further tests and the problem seems to be SATA, not
UEFI, I have updated the bug description to reflect this.

** Summary changed:

- Issue with qemu 2.12.0 + UEFI
+ Issue with qemu 2.12.0 + SATA

** Description changed:

- (first reported here: https://bugzilla.tianocore.org/show_bug.cgi?id=949
- )
+ [EDIT: I first thought that OVMF was the issue, but it turns out to be
+ SATA]
  
- I had a Windows 10 VM running perfectly fine with OVMF UEFI, since I
+ I had a Windows 10 VM running perfectly fine with a SATA drive, since I
  upgraded to qemu 2.12, the guests hangs for a couple of minutes, works
  for a few seconds, and hangs again, etc. By "hang" I mean it doesn't
  freeze, but it looks like it's waiting on IO or something, I can move
  the mouse but everything needing disk access is unresponsive.
  
- What doesn't work: qemu 2.12 with OVMF
- What works: using BIOS or downgrading qemu to 2.11.1.
+ What doesn't work: qemu 2.12 with SATA
+ What works: using VirIO-SCSI with qemu 2.12 or downgrading qemu to 2.11.1 and keep using SATA.
  
- Platform is arch linux 4.16.7 on skylake, I have attached the vm xml
- file.
+ Platform is arch linux 4.16.7 on skylake and Haswell, I have attached
+ the vm xml file.

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https://bugs.launchpad.net/bugs/1769189

Title:
  Issue with qemu 2.12.0 + SATA

Status in QEMU:
  New

Bug description:
  [EDIT: I first thought that OVMF was the issue, but it turns out to be
  SATA]

  I had a Windows 10 VM running perfectly fine with a SATA drive, since
  I upgraded to qemu 2.12, the guests hangs for a couple of minutes,
  works for a few seconds, and hangs again, etc. By "hang" I mean it
  doesn't freeze, but it looks like it's waiting on IO or something, I
  can move the mouse but everything needing disk access is unresponsive.

  What doesn't work: qemu 2.12 with SATA
  What works: using VirIO-SCSI with qemu 2.12 or downgrading qemu to 2.11.1 and keep using SATA.

  Platform is arch linux 4.16.7 on skylake and Haswell, I have attached
  the vm xml file.

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