From: Chris Wilson <chris@chris-wilson.co.uk>
To: Alex Williamson <alex.williamson@redhat.com>,
Geoffrey McRae <geoff@hostfission.com>
Cc: hdanton@sina.com, tj@kernel.org, jiangshanlai@gmail.com,
linux-kernel@vger.kernel.org
Subject: Re: Poor windows VFIO performance, GPU stalls (bisected)
Date: Sun, 26 Jul 2020 15:15:49 +0100 [thread overview]
Message-ID: <159577294913.1157.91069469417568930@build.alporthouse.com> (raw)
In-Reply-To: <20200726073052.284dadb2@x1.home>
Quoting Alex Williamson (2020-07-26 14:30:52)
> On Sun, 26 Jul 2020 17:49:07 +1000
> Geoffrey McRae <geoff@hostfission.com> wrote:
>
> > Hi All,
> >
> > The commit 22540ca3d00d2990a4148a13b92209c3dc5422db causes a Windows KVM
> > guest running under QEMU with a VFIO passthrough GPU to randomly stall
> > when using the GPU leading to the guest assuming that the driver has
> > hung. Reverting this commit resolves the problem.
>
> Please double check this commit ID, I can't find it in mainline or
> linux-next. Thanks,
See commit aa202f1f5696 ("workqueue: don't use wq_select_unbound_cpu()
for bound works"). 22540ca3 is the cherry-pick into v5.4.26
-Chris
prev parent reply other threads:[~2020-07-26 14:16 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-26 7:49 Geoffrey McRae
2020-07-26 13:30 ` Alex Williamson
2020-07-26 13:32 ` Geoffrey McRae
2020-07-26 13:33 ` Geoffrey McRae
2020-07-26 14:15 ` Chris Wilson [this message]
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