Re: USB problem on x86_64: nommu_map_single() issue?

From: Nicolas Bareil
Date: Tue Oct 14 2008 - 09:43:55 EST


On Tue, Oct 14, 2008 at 01:00:28PM +0200, Oliver Neukum wrote:
> > Yes this is a regression: USB works in 2.6.26.x with (almost) the same configuration.
>
> This a an IOMMU problem, not really a USB problem. Can you bisect the problem?

Ok, after 24 reboots, I have the following commit:

commit 6f21d806f698a5c437dcae1f03e8dd73e3f5aab1
Merge: e59e14b... 9f72632...
Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date: Sun Sep 21 12:40:56 2008 -0700

Merge branch 'kvm-updates/2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm

* 'kvm-updates/2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
KVM: ia64: 'struct fdesc' build fix

Do you think I'm good to bisect that tree or do you have an idea?

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