From: bugzilla-daemon@bugzilla.kernel.org
To: kvm@vger.kernel.org
Subject: [Bug 206579] KVM with passthrough generates "BUG: kernel NULL pointer dereference" and crashes
Date: Sun, 22 Mar 2020 13:43:02 +0000 [thread overview]
Message-ID: <bug-206579-28872-ujGkxTHU0b@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-206579-28872@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=206579
--- Comment #46 from Anthony (anthonysanwo@googlemail.com) ---
Suravee Suthikulpanit
Just wanted to say thanks a lot for the latest patches -
iommu/amd: Fix IOMMU AVIC not properly update the is_run bit in IRTE -
https://lore.kernel.org/patchwork/patch/1208762/
This patch fixes the performance differences I saw when I was testing AVIC with
your earlier patchsets. I believe this was what caused my confusion as because
I found when AVIC was enabled I had worse performance at times so I thought it
was due to me misunderstanding how things should be setup.
kvm: svm: Introduce GA Log tracepoint for AVIC -
https://lore.kernel.org/patchwork/patch/1208775/
This is perfect for people like me with limited understanding on things as it
more easily tells you whether or not avic is working.
On that point with the IOMMU AVIC fix i have had great results with my setup -
which now as a total of 7 PCIe devices that are pass through to my Windows
guest.
Thanks again to everyone for all the hard work.
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next prev parent reply other threads:[~2020-03-22 13:43 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-17 18:17 [Bug 206579] New: KVM with passthrough generates "BUG: kernel NULL pointer dereference" and crashes bugzilla-daemon
2020-02-18 6:45 ` [Bug 206579] " bugzilla-daemon
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2020-03-22 13:43 ` bugzilla-daemon [this message]
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