linux-kernel - Re: Random guest crashes since 5c34d002dcc7 ("virtio_pci: use shared interrupts for virtqueues")

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Message-ID: <1491242192.5638.111.camel@gmx.de>
Date:   Mon, 03 Apr 2017 19:56:32 +0200
From:   Mike Galbraith <efault@....de>
To:     Christoph Hellwig <hch@....de>,
        "Michael S. Tsirkin" <mst@...hat.com>
Cc:     Thorsten Leemhuis <linux@...mhuis.info>,
        virtio-dev@...ts.oasis-open.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        rjones@...hat.com
Subject: Re: Random guest crashes since 5c34d002dcc7 ("virtio_pci: use
 shared interrupts for virtqueues")

On Mon, 2017-04-03 at 16:18 +0200, Christoph Hellwig wrote:
> Mike,
> 
> can you try the patch below?

No more spinning kworker woes, but I still have a warning on hibernate,
threadirqs invariant.  I'm also seeing intermittent post hibernate hang
funnies in virgin source +- this patch, and without threadirqs.

[  110.223953] WARNING: CPU: 5 PID: 452 at drivers/pci/msi.c:1261 pci_irq_vector+0xb1/0xe0

	-Mike