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Re: [Xen-devel] Xen-4.3 - curious crash

To: Jan Beulich <JBeulich@xxxxxxxx>
From: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
Date: Wed, 29 Jan 2014 08:51:17 +0000
Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Xen-devel List <xen-devel@xxxxxxxxxxxxx>
Delivery-date: Wed, 29 Jan 2014 08:51:36 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

On Wed, 2014-01-29 at 08:43 +0000, Jan Beulich wrote:
> An interrupt not properly restoring EFLAGS.IF (or actually one not
> properly restoring all of EFLAGS) would be very odd. About as odd
> as a cosmic radiation induced bit flip resulting in some other
> misbehavior.

Isn't it also the affect of a missing spin_unlock(_irqrestore)? Or does
something else catch that first?

Ian.


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