Re: [Bug 1877716] [NEW] Win10 guest unsuable after a few minutes

[Stefan Hajnoczi]

On Sat, May 9, 2020 at 9:16 AM Xavier <address@hidden> wrote:
>
> Public bug reported:
>
> On Arch Linux, the recent qemu package update seems to misbehave on some
> systems. In my case, my Windows 10 guest runs fine for around 5 minutes
> and then start to get really sluggish, even unresponsive. It needs to be
> forced off. I could reproduce this on a minimal VM with no passthrough,
> although my current testing setup involves an nvme pcie passthrough.
>
> I bisected it to the following commit which rapidly starts to run sluggishly 
> on my setup:
> https://github.com/qemu/qemu/commit/73fd282e7b6dd4e4ea1c3bbb3d302c8db51e4ccf

Thanks for bisecting this bug! Arch Linux can work around it in the
short term by building with ./configure --disable-linux-io-uring
and/or removing the liburing build dependency.

I will try to reproduce the issue and send a QEMU patch to fix it.