Re: [Xen-devel] Regression between Xen 4.6.0 and 4.7.0, Direct kernel boot on a qemu-xen and seabios HVM guest doesn't work anymore.

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 05.09.16 at 11:20, <linux@xxxxxxxxxxxxxx> wrote:
> Hmm it seems my thread was kind of hijacked and i was dropped from the 
> CC.
> 
> I had some time and bisected the issue and it resulted in:
> 
> 5a3ce8f85e7e7bdd339d259daa19f6bc5cb4735f is the first bad commit
> commit 5a3ce8f85e7e7bdd339d259daa19f6bc5cb4735f
> Author: Jan Beulich <jbeulich@xxxxxxxx>
> Date:   Wed Oct 21 10:56:31 2015 +0200
> 
>      x86/shadow: drop stray name tags from sh_{guest_get,map}_eff_l1e()

Hmm, as Wei already indicated - that's rather odd. The commit isn't
really supposed to have any effect on functionality (and going
through it again I also can't spot any now). And are you indeed
using shadow mode, and if so does your problem not occur when
you use HAP instead?

In any event, if there was some hidden (and unintended) change
in functionality here, then the most likely result would seem to be
a crash, yet from the log fragment you posted it doesn't look like
there's _any_ relevant hypervisor output.

Jan


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