> -----Original Message----- > From: Wu, Feng [mailto:feng...@intel.com] > Sent: Friday, May 13, 2016 3:11 AM > To: Zytaruk, Kelly; Jan Beulich > Cc: Tian, Kevin; xen-devel@lists.xen.org; Wu, Feng > Subject: RE: [Xen-devel] panic("queue invalidate wait descriptor was not > executed\n") > > > > > -----Original Message----- > > From: Zytaruk, Kelly [mailto:kelly.zyta...@amd.com] > > Sent: Thursday, May 12, 2016 10:21 PM > > To: Jan Beulich <jbeul...@suse.com> > > Cc: Wu, Feng <feng...@intel.com>; Tian, Kevin <kevin.t...@intel.com>; > > xen- de...@lists.xen.org > > Subject: RE: [Xen-devel] panic("queue invalidate wait descriptor was > > not > > executed\n") > > > > > > > > > -----Original Message----- > > > From: Jan Beulich [mailto:jbeul...@suse.com] > > > Sent: Thursday, May 12, 2016 9:51 AM > > > To: Zytaruk, Kelly > > > Cc: Feng Wu; Kevin Tian; xen-devel@lists.xen.org > > > Subject: RE: [Xen-devel] panic("queue invalidate wait descriptor was > > > not > > > executed\n") > > > > > > >>> On 12.05.16 at 14:36, <kelly.zyta...@amd.com> wrote: > > > >> From: Jan Beulich [mailto:jbeul...@suse.com] > > > >> Sent: Thursday, May 12, 2016 5:49 AM > > > >> >>> On 11.05.16 at 15:51, <kelly.zyta...@amd.com> wrote: > > > >> > During Xen boot I am seeing the panic in the subject line from > > > >> > .../xen/drivers/passthrough/vgt/qinval.c > > > >> > > > >> And this is with current staging, or some much older version of Xen? > > > >> (ISTR some issue with the invalidation request getting sent to > > > >> the wrong IOMMU, leading to a timeout.) > > > > > > > > No this is not current Xen, it is with 4.2. > > > > > > > > Can you tell me more about the invalidation request getting sent > > > > to the wrong IOMMU problem and approximately when it was fixed? > > > > If you could identify the patch I could back port it into my copy of > > > > Xen for > testing. > > > > > > Note that 4.2.5 has said change, and also note that you could have > > > done > > exactly > > > what I have done now - go through the list of commits altering files > > > in the vtd/ subtree. > > > > Unfortunately GIT is not my strong suit :( I am still learning to > > navigate with it. I guess part of my problem with GIT is that I don't yet > > know > what I don't know. > > > > >This is what I've been remembering: > > > > > http://xenbits.xen.org/gitweb/?p=xen.git;a=commitdiff;h=84c340ba4c3eb9 > > 927 > > > 8b6ba885616bb183b88ad67 > > > > The comment on this link describes exactly what I am experiencing. > > Thanks so much. > > Thanks Jan for providing the information above. Kelly, if you still met the > same > issue after applying the patches, let us know, maybe I can consult some > hardware expert internally.
Turns out this was exactly my problem. The description matched my symptoms and when I applied the patch the problem has gone away. Thanks, Kelly > > Thanks, > Feng > > > > > > > > > Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
