Re: [Xen-devel] Error booting Xen

[Shuai Ruan <shuai.ruan@xxxxxxxxxxxxxxx>]

On Tue, Feb 02, 2016 at 10:39:09AM +0000, Andrew Cooper wrote:
> On 02/02/16 04:43, Shuai Ruan wrote:
> >
> >>> I tried booting staging branch but results were identical. Following
> >>> line repeats endlessly.
> >>> (XEN) traps.c:3290: GPF (0000): ffff82d0801c1cce -> ffff82d080252e5c
> >>>
> >>> $ 'addr2line -e xen-syms ffff82d0801c1cce' returns
> >>> 'xen/xen/arch/x86/xstate.c:387' which again points to
> >>> xsave. Also, adding 'xsave=0' makes it boot just fine.
> >> Ah, I think I see the issue: We're zeroing the entire save area in
> >> the fixup code, which will make XRSTORS fault unconditionally.
> >> Shuai, would you please look into possible ways of fixing this?
> > Ok. I will look into this problem.
> 
> Fixes for this have been committed already.  changesets 104a409^..d570d82
> 
> It would be useful if you could review them to see if there are any
> issues Jan and myself missed.
The patch is ok to me. 
And I test it on the skylake machine (with xsaves support), no boot error 
happen.

Thanks
> 
> ~Andrew
> 

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