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Re: [Xen-devel] [ARM] Bash often segfaults in Dom0 with the latest Xen

To: Julien Grall <julien.grall@xxxxxxxxxx>
From: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
Date: Wed, 5 Jun 2013 10:38:31 +0100
Cc: Andre Przywara <andre.przywara@xxxxxxxxxxx>, christoffer.dall@xxxxxxxxxx, Stefano Stabellini <Stefano.Stabellini@xxxxxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxx>
Delivery-date: Wed, 05 Jun 2013 09:38:55 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

On Tue, 2013-06-04 at 23:45 +0100, Julien Grall wrote:
> The patch below removes WFI trap and by consequence avoid a VCPU to move to
> another physical CPU.

FWIW the dom0_vcpus_pin command line parameter should have achieved the
same thing without removing the WFI code paths. I very much doubt that
code path is to blame but it might be worth ruling it out.

Ian.

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