From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 67061] [BISECTED][Nested]L2 guest boot up fail(kvm on kvm).
Date: Mon, 10 Mar 2014 19:51:38 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=67061
Thilo Fromm changed:
What |Removed |Added
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CC| |kontakt@thilo-fromm.de
--- Comment #3 from Thilo Fromm ---
This bug may have been fixed in 3.13.6.
I was affected by this bug, too - I use nested virtualization a lot, mainly for
system testing purposes. I was able to reproduce the issue on all 3.13 kernels
so far; my hardware is a Intel Core i7-2640M.
Kernel release 3.13.6 fixed the issue for me. Looking at the changelog at
https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.6, I guess the fix
was in commit 92cb6f3c5533832aa70a7dc9326ef21270169583 " kvm, vmx: Really fix
lazy FPU on nested guest".
The issue is discussed on the kvm-devel mailing list:
http://thread.gmane.org/gmane.comp.emulators.kvm.devel/119328 leading to the
fix: http://permalink.gmane.org/gmane.linux.kernel.stable/82043.
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