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Re: [Xen-devel] Xen 4.12.0-rc Hangs Around masked ExtINT on CPU#

  • To: Roger Pau Monné <roger.pau@xxxxxxxxxx>
  • From: Roger Pau Monné <roger.pau@xxxxxxxxxx>
  • Date: Mon, 27 May 2019 18:18:32 +0200
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  • Cc: "John L. Poole" <jlpoole56@xxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxx>, xen-devel@xxxxxxxxxxxxx
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On Mon, Apr 29, 2019 at 05:27:34PM +0200, Roger Pau Monné wrote:
> IMO it would be better if you can build directly from the upstream git
> repository [0], that way you could use git-bisect(1) in order to figure
> out which commit broke your system. For example:
> # git clone git://xenbits.xen.org/xen.git
> # cd xen
> # git checkout RELEASE-4.7.0
> # make xen -j8
> That should give you a set of Xen binaries in the xen/ directory, IIRC
> you are booting from EFI so you likely need xen/xen.efi.
> If that works, then you can test RELEASE-4.8.0 and if that fails to
> boot you should have a range of commits that you can bisect in order
> to find the culprit.

FWIW, I've been unable to find a box with the same CPU model (C2750)
that you are using. I've found a couple of old Atom boxes using
different CPUs but they all seem to boot fine using latest
xen-unstable. I've looked on eBay for that CPU but everything
containing it is server-grade and >200$ which I'm sadly not going to

Unless you are able to bisect the tree and give us the bad commit
that's causing your issues I'm afraid at least myself I won't be able
to progress this any further, sorry.


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