 Home |
Products |
Support |
Community |
News |
xen-devel
Re: [Xen-devel] xen crash related to pci passthrough
| To: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] xen crash related to pci passthrough |
| From: | Jeremy Fitzhardinge <jeremy@xxxxxxxx> |
| Date: | Thu, 27 May 2010 14:02:20 -0700 |
| Cc: | Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> |
| Delivery-date: | Thu, 27 May 2010 14:03:12 -0700 |
| Envelope-to: | www-data@xxxxxxxxxxxxxxxxxxx |
| In-reply-to: | <C8248E7F.2103%keir.fraser@xxxxxxxxxxxxx> |
| List-help: | <mailto:xen-devel-request@lists.xensource.com?subject=help> |
| List-id: | Xen developer discussion <xen-devel.lists.xensource.com> |
| List-post: | <mailto:xen-devel@lists.xensource.com> |
| List-subscribe: | <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe> |
| List-unsubscribe: | <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe> |
| References: | <C8248E7F.2103%keir.fraser@xxxxxxxxxxxxx> |
| Sender: | xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
| User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100430 Fedora/3.0.4-2.fc12 Lightning/1.0b2pre Thunderbird/3.0.4 |
On 05/27/2010 01:02 PM, Keir Fraser wrote:
> On 27/05/2010 20:51, "Jeremy Fitzhardinge" <jeremy@xxxxxxxx> 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.
>
Doing things in a more sensible order (rmmod in domU, detach, unbind)
seems to work OK. I was deliberately seeing what would happen if I
tried pulling the device out from under a domain.
J
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
|
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | Re: [Xen-devel] question on iommu _map_page, Kaushik Kumar Ram |
|---|---|
| Next by Date: | [Xen-devel] Re: Null-pointer access in netback_uevent, Jeremy Fitzhardinge |
| Previous by Thread: | Re: [Xen-devel] xen crash related to pci passthrough, Keir Fraser |
| Next by Thread: | Re: [Xen-devel] xen crash related to pci passthrough, Alex Zeffertt |
| Indexes: | [Date] [Thread] [Top] [All Lists] |
