Konrad Rzeszutek Wilk
2014-Mar-07 12:49 UTC
Re: [Xen-devel] [BUG] PCI passtrough causes driver crash in DomU (Xen 4.3, Linux kernel 3.12)
On Mar 7, 2014 7:04 AM, Jonas Meurer <jonas@freesources.org> wrote:> > Am 07.03.2014 12:54, schrieb Jonas Meurer: > > as already written to xen-users a few days ago, I've troubles using pci > > passthrough for an Intel 82574L ethernet device (kernel module e1000e). > > The device is passed through by xen-pciback, and can be seen by 'lspci' > > inside the DomU. Still, the corresponding network interface doesn't > > appear in /proc/net/dev and even more striking, the DomU kernel driver > > crashes with a traceback. > > > > All this happens on a Debian/Jessie Dom0 with Xen 4.3 and Linux kernel > > 3.12. The DomU in question has a similar Debian/Jessie setup. > >This was fixed in 3.14 I believe by me. Is it possible for you to use that version?> > I searched the archives for similar issues and found the following > > thread from October 2013 that describes a similar issue starting with > > Linux kernel 3.8: > > http://thread.gmane.org/gmane.comp.emulators.xen.user/80672 > > Just a quick follow-up: After some further searching I found the > following thread: > http://thread.gmane.org/gmane.comp.emulators.xen.user/80176 > > In this thread, Ian Campbell suggests to disable MSI for the guest, and > the submitter replies that it fixed the issue for him. So indeed it > seems to me like MSI in DomU is the cause for trouble here. I'll give > the suggested workaround a try within the next days and report back if > it works for me as well. > > Kind regards, > jonas > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel