[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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

From: Bruce Rogers
Subject: [Qemu-devel] [Bug 1769189] Re: Issue with qemu 2.12.0 + SATA
Date: Wed, 23 May 2018 17:30:26 -0000

I've tried bisecting a few times, but since my reproducer wasn't
reliable enough, I didn't identify the issue. (I see a bisect reported
on qemu ML which seems like a bogus result, similar to mine).

In my case, after the "hang", Windows 10 resets the ahci device after 2
minutes and it continues on until another hang happens. Seems fairly
random. I increased the number of vcpu's assigned which seemed to
increase the likelihood of the hang.

I also went so far as to instrument an injection of the ahci interrupt
via the monitor (total kludge, I know), and the guest did get out of the
hung condition right away when I did that.

You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.

  Issue with qemu 2.12.0 + SATA

Status in QEMU:

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

  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.

To manage notifications about this bug go to:

reply via email to

[Prev in Thread] Current Thread [Next in Thread]