Bug#961676: 5.6 kernel crashes host when using VFIO on KVM guests

To: 961676@bugs.debian.org
Subject: Bug#961676: 5.6 kernel crashes host when using VFIO on KVM guests
From: Simon John <debian@the-jedi.co.uk>
Date: Sat, 13 Jun 2020 23:40:22 +0100
Message-id: <[🔎] 86ccfdfa-e7a5-a329-9786-79d82e68c498@the-jedi.co.uk>
Reply-to: Simon John <debian@the-jedi.co.uk>, 961676@bugs.debian.org
In-reply-to: <[🔎] 68f0e7d9-f76a-abfc-0dc3-956cc6f309c3@the-jedi.co.uk>
References: <3a5b8889-2b77-aad4-90b9-55015c3f5bd2@the-jedi.co.uk> <20200527193146.GA262873@eldamar.local> <20200527193146.GA262873@eldamar.local> <83904c20-836a-42df-373b-c4ca99e84363@the-jedi.co.uk> <83904c20-836a-42df-373b-c4ca99e84363@the-jedi.co.uk> <[🔎] 68f0e7d9-f76a-abfc-0dc3-956cc6f309c3@the-jedi.co.uk> <[🔎] 68f0e7d9-f76a-abfc-0dc3-956cc6f309c3@the-jedi.co.uk> <20200527193146.GA262873@eldamar.local>

I tried to get some sort of useful logging today, best I could do wasrunning strace.

So I noticed that virsh exited 0 but didn't instantly crash, it took 2-3seconds more.


Photo of screen with strace output here:

	https://i.imgur.com/kOSEXXA.jpg

Managed to install 5.5.0-2 from snapshot.debian.org which works fine.

Regards.

--
Simon John

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- Bug#961676: 5.6 kernel crashes host when using VFIO on KVM guests
  - From: Simon John <debian@the-jedi.co.uk>

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- Bug#961676: 5.6 kernel crashes host when using VFIO on KVM guests
  - From: Simon John <debian@the-jedi.co.uk>

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