[Xen-bugs] [Bug 1612] x86-64 : Can't start VM when vif set

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1612





------- Comment #18 from andrew.lyon@xxxxxxxxx  2010-05-28 12:59 -------
(In reply to comment #17)
> I just discovered something that might be linked to this problem.
> 
> I have another environment (X86 / Kernel 2.6.27 / Xen 3.4.2), which started to
> have problems of the same kind when I upgraded udev from 151 to 156...
> 
> Unfortunately I wasn't be able to test udev-151 on the x86_64 env and I won't
> be during at least one more week, but I'll let you know if that helped.
> 

I've had a similar issue on x86_64 using a subset of the openSUSE forward
ported dom0 kernel patches on 2.6.32, when portage upgraded udev to 154
starting a vm resulted in a very similar null pointer dereference and
eventually xm create timed out and a error was logged about vif device failure.

Downgrading udev fixed the problem.

Andy


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