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Re: [Xen-devel] Re: [PATCH] xen: mask XSAVE in cpuid since we don't allo

To: bderzhavets@xxxxxxxxx
Subject: Re: [Xen-devel] Re: [PATCH] xen: mask XSAVE in cpuid since we don't allow guests to use it
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Wed, 11 Mar 2009 10:04:30 -0700
Cc: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
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Boris Derzhavets wrote:
>Could you try bisecting xen-unstable to see which change started failing for
>you?  There were some recent changes to the hotplug scripts which could have
> introduced a problem.
No. It's above me.

If you're fetching xen-unstable with "hg" and building it, then you have everything you need to do bisection:

  1. hg bisect -r
  2. hg bisect -g <known good version>
  3. hg bisect -b <known bad version>
  4. build as usual and test
        1. if works: hg bisect -g
        2. if not: hg bisect -b
  5. repeat 4 until first bad version has been isolated


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