From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 30402] Debian 4 fails to boot in KVM
Date: Tue, 20 May 2014 21:22:25 +0000
Message-ID: <bug-30402-28872-icRPf4D9t0@https.bugzilla.kernel.org/>
References: <bug-30402-28872@https.bugzilla.kernel.org/>
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https://bugzilla.kernel.org/show_bug.cgi?id=30402

--- Comment #3 from Joerg Roedel <joro@8bytes.org> ---
(In reply to Jidong Xiao from comment #2)
> Joerg, how do you know this?
> 
> "Some investigation showed that this kernel uses MMX instructions to access
> MMIO regions. These instructions are not emulated by the instruction
> emulator and need to be added there."

AFAIR the stack-trace and instruction pointer of the crashing kernel pointed to
an MMX instruction and the kernel was trying to access an MMIO region.

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