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    SubjectRandom guest crashes since 5c34d002dcc7 ("virtio_pci: use shared interrupts for virtqueues")
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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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