linux-kernel - Re: [PATCH] vfio/pci: Clear error and request eventfd ctx after releasing

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Date:   Tue, 16 Jun 2020 18:34:22 -0400
From:   Qian Cai <cai@....pw>
To:     Alex Williamson <alex.williamson@...hat.com>
Cc:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        cohuck@...hat.com, dwagner@...e.de
Subject: Re: [PATCH] vfio/pci: Clear error and request eventfd ctx after releasing



> On Jun 16, 2020, at 5:26 PM, Alex Williamson <alex.williamson@...hat.com> wrote:
> 
> The next use of the device will generate an underflow from the
> stale reference.

Thanks Alex for taking care of this. I suppose my tests were too basic and never able to catch this underflow in the first place.