On Mon, 2013-02-18 at 19:59 -0300, Marcelo Tosatti wrote: > On Wed, Feb 13, 2013 at 06:57:09AM -0500, Peter Hurley wrote: > > On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote: > > > On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: > > > > On 02/12/2013 04:26 PM, Peter Hurley wrote: > > > > > With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA > > > > > device/console): > > > > > > > > > > [ 0.666410] udevd[97]: starting version 175 > > > > > [ 0.674043] udevd[97]: udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d > > > > > > > > > > and boots to an initramfs prompt. > > > > > > > > > > git bisect (log attached) blames: > > > > > > > > > > commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f > > > > > Merge: 3596f5b 949db15 > > > > > Author: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx> > > > > > Date: Fri Jan 25 16:31:21 2013 -0800 > > > > > > > > > > Merge tag 'v3.8-rc5' into x86/mm > > > > > > > > > > The __pa() fixup series that follows touches KVM code that is not > > > > > present in the existing branch based on v3.7-rc5, so merge in the > > > > > current upstream from Linus. > > > > > > > > > > Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx> > > > > > > > > > > > > > > > This only happens with the VGA device/console but that is the default > > > > > configuration for Ubuntu/KVM because it blacklists pretty much every fb > > > > > driver. > > > > > > > > > > > > > I am guessing this is another bad use of __pa()... need to look into that. > > Can't find this commit on kvm.git or linux-2.6.git. Is it reproducible > there? This is in the linux-next repo (any git tag after 'next-20130204' will reproduce this). It's a pretty large merge commit. This doesn't happen on 3.8-rc7. I'll try to repro this on kvm.git sometime this week. Otherwise, we can wait for it to show up in 3.9. Regards, Peter Hurley -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
