From: Keir Fraser <keir.fraser@eu.citrix.com>
To: Jeremy Fitzhardinge <jeremy@goop.org>,
Xen-devel <xen-devel@lists.xensource.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Subject: Re: xen crash related to pci passthrough
Date: Thu, 27 May 2010 21:02:55 +0100 [thread overview]
Message-ID: <C8248E7F.2103%keir.fraser@eu.citrix.com> (raw)
In-Reply-To: <4BFECD2A.6050002@goop.org>
On 27/05/2010 20:51, "Jeremy Fitzhardinge" <jeremy@goop.org> wrote:
> 3. attach device to PV domU
> dom0# xl pci-attach f13pv64 0000:03:00.0
> 4. unbind from pciback
> dom0# echo 0000:03:00.0 > /sys/bus/pci/drivers/pciback/unbind
> 5. rmmod driver in domU
> domU# rmmod e1000e
> 6. Crash!
>
> The device in question is an Intel 82574L ethernet controller, using
> msi-x interrupts.
What happens if you pci-detach before unbinding from pciback? Not that Xen
should crash of course, but a crash resulting from a mistake in detach
ordring in dom0 would be less worrying than some alternatives.
-- Keir
next prev parent reply other threads:[~2010-05-27 20:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-27 19:51 xen crash related to pci passthrough Jeremy Fitzhardinge
2010-05-27 20:02 ` Keir Fraser [this message]
2010-05-27 21:02 ` Jeremy Fitzhardinge
2010-05-28 9:28 ` Alex Zeffertt
2010-05-28 9:52 ` Keir Fraser
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