Messages in this thread | | | Date | Wed, 26 Nov 2014 00:11:31 -0500 | From | Dave Jones <> | Subject | Re: frequent lockups in 3.18rc4 |
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On Tue, Nov 25, 2014 at 09:09:45PM -0800, Linus Torvalds wrote: > On Nov 25, 2014 8:39 PM, "Jürgen Groß" <jgross@suse.com> wrote: > > > > I COULD trigger it with 3.17. Took much longer, but I've seen it once. > > And from Xen hypervisor data it was clear it was the same bug (cpu > > spinning in pmd_lock()). > > I'm still hoping you can give a back trace. I'd like to know what access it > is that can trigger this, and preferably what the call chain to it was... > > I do believe it happened in 3.17, I just want to understand the but more - > not just apply the fix.. > > Most of Dave's lockup back traces did not have the whole page fault in > them, so while Dave has seen this too, there might be different symptoms...
Before giving 3.17 a multi-day workout, I'll try rc6 with Jürgen's patch to see if that makes any difference at all for me.
Dave
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