On Sat, May 9, 2020 at 9:16 AM Xavier <1877...@bugs.launchpad.net> 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.
