Re: [Xen-devel] Xen 4.2.0 won't boot with FC17 dom0 on Dell Optiplex 790, boots fine with 4.1.3

[Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>]

> From: Jan Beulich [mailto:JBeulich@xxxxxxxx]
> Subject: Re: [Xen-devel] Xen 4.2.0 won't boot with FC17 dom0 on Dell Optiplex 
> 790, boots fine with
> 4.1.3
> 
> >>> On 30.08.12 at 19:04, Dan Magenheimer <dan.magenheimer@xxxxxxxxxx> wrote:
> >>  From: bing [mailto:Libing.Chen@xxxxxxxxxx]
> >> Sent: Thursday, August 30, 2012 12:16 AM
> >> To: xen-devel@xxxxxxxxxxxxx
> >> Subject: Re: [Xen-devel] Xen 4.2.0 won't boot with FC17 dom0 on Dell 
> >> Optiplex
> > 790, boots fine with
> >> 4.1.3
> >>
> >> I have a similar crash on Xen 4.2.0-rc3 with HP DC7900, reboot right
> >> after loading Dom0 kernel. I found a workaround by pass xsave=0 option
> >> to the xen kernel. It seems to be CPU related, same setup (same xen,
> >> Dom0 kernel version) works fine on another Dell Precision 3200.
> >
> > Thanks, just saw this as I wasn't cc'ed on your email.  xsave=0
> > did solve my problem also.
> 
> But that was known to be required only with certain, non-upstream
> broken kernels (which got their own xsave handling wrong). Can
> either of you confirm this is a problem with a plain upstream kernel
> now too (and if so, which version(s))?

Konrad told me this was a known problem on Fedora so I didn't
try an upstream kernel.

Dan

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