Messages in this thread | | | From | Thorsten Leemhuis <> | Subject | Random guest crashes since 5c34d002dcc7 ("virtio_pci: use shared interrupts for virtqueues") | Date | Thu, 23 Mar 2017 15:51:25 +0100 |
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Hi Christoph! Hi Michael!
(Mail roughly based on text from https://bugzilla.kernel.org/show_bug.cgi?id=194911 )
I'm seeing random crashes during boot every few boot attempts when running Linux 4.11-rc/mainline in a Fedora 26 guest under a CentOS7 host (CPU: Intel(R) Pentium(R) CPU G3220) using KVM. Sometimes when the guest actually booted the network did not work. To get some impressions of the crashes I got see this gallery: https://plus.google.com/+ThorstenLeemhuis/posts/FjyyGjNtrrG
Richard W.M. Jones and Adam Williamson see the same problems. See above bug for details. It seems they ran into the problem in the past few days, so I assume it's still present in mainline (I'm travelling currently and haven't had time for proper tests since last last Friday (pre-rc3); but I thought it's time to get the problem to the lists).
Long story short: Richard and I did bisections and we both found that https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=07ec51480b5e ("virtio_pci: use shared interrupts for virtqueues") is the first bad commit. Any idea what might be wrong? Do you need more details from us to fix this?
Ciao, Thorsten
P.S.: Sorry, I should have written this mail a few days ago after filing above bug report, but I didn't get around to it :-/
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