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

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Date:   Wed, 5 Apr 2017 00:31:40 +0300
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     Mike Galbraith <efault@....de>
Cc:     Christoph Hellwig <hch@....de>,
        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 Tue, Apr 04, 2017 at 08:38:35PM +0200, Mike Galbraith wrote:
> On Tue, 2017-04-04 at 21:00 +0300, Michael S. Tsirkin wrote:
> 
> > And just making double sure, the 1st version that has the issue
> > is 5c34d002dcc7, isn't it? I'm asking because subject says so
> > but then goes on to list subject from another commit.
> > This one is:
> > 	> virtio_pci: remove struct virtio_pci_vq_info
> 
> When the hibernation related warnings started I don't know, I wasn't
> targeting that, those fell out of subsequent testing.
> I started out
> hunting console breakage point w. threaded irqs, which is 5c34d002dcc7.

OK but 5c34d002dcc7 isn't "virtio_pci: use shared
interrupts for virtqueues".

> 
> 	-Mike

I'm confused at this point. I would appreciate the summary of
which versions were tested and what did you see. Testing
a revert might also help.

Thanks a lot for your testing!

-- 
MST