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Re: [Xen-devel] [OSSTEST PATCH 26/26] ts-xen-install: networking: Rename `nodhcp' to `ensurebridge'



On Fri, 2015-10-23 at 13:25 +0000, Hu, Robert wrote:
> > -----Original Message-----
> > From: Ian Campbell [mailto:ian.campbell@xxxxxxxxxx]
> > Sent: Friday, October 23, 2015 4:15 PM
> > To: Hu, Robert <robert.hu@xxxxxxxxx>; 'Ian Jackson'
> > <ian.jackson@xxxxxxxxxxxxx>; 'xen-devel@xxxxxxxxxxxxxxxxxxxx'
> > <xen-devel@xxxxxxxxxxxxxxxxxxxx>
> > Subject: Re: [OSSTEST PATCH 26/26] ts-xen-install: networking: Rename
> > `nodhcp' to `ensurebridge'
> > 
> > On Fri, 2015-10-23 at 06:16 +0000, Hu, Robert wrote:
> > 
> > > [Hu, Robert]
> > > Seems the failure log shall be this, any idea? I've spent days on
> > > debugging this:(
> > > (XEN) traps.c:3290: GPF (0000): ffff82d080195082 -> ffff82d080243d9d
> > > (XEN) PCI add device 0000:00:00.0
> > > (XEN) PCI add device 0000:00:01.0
> > > (XEN) PCI add device 0000:00:01.1
> > > (XEN) PCI add device 0000:00:01.2
> > > (XEN) PCI add device 0000:00:01.3
> > > (XEN) PCI add device 0000:00:02.0
> > > (XEN) PCI add device 0000:00:03.0
> > > (XEN) d0: Forcing read-only access to MFN fed00
> > > (XEN) Hardware Dom0 crashed: rebooting machine in 5 seconds.
> > > Issued domain 3 reboot
> > > qemu: terminating on signal 1 from pid 4322
> > 
> > Please can you report this as a regular bug in a fresh thread, that way
> > the relevant Xen maintainers are likely to see and react to it, rather
> > than just us osstest folks.
> [Hu, Robert] 
> 
> It shall be in that way after I confirm it is a bug.
> Currently I'm just still not certain it is a nested bug or because of the
> latest
> osstest code change.
> I was just asking for if you can recall some hint on what changes (of
> osstest)
> might causing this.
> I'm to restore to my v12 code, with current Xen and qemu selection to try
> again. I think by this way, I can confirm it is an actual nested bug or
> not.
> Then I would report this in a fresh thread.

A dom0 crash of this sort is pretty certainly a bug somewhere in Xen,
whether it is exposed by a new osstest case or not. The people who are best
placed to figure out where the bug is are certainly not reading this
osstest thread.

So please just report it as a bug as it stands, with the relevant
information.

Ian.

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