Messages in this thread | | | Date | Wed, 6 Sep 2017 22:43:21 +0200 (CEST) | From | Jiri Kosina <> | Subject | Re: [GIT PULL] x86/mm changes for v4.14: PCID support, 5-level paging support, Secure Memory Encryption support |
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On Tue, 5 Sep 2017, Linus Torvalds wrote:
> > And one of those 18 is commit 10af6235e0d3 ("x86/mm: Implement PCID > > based optimization: try to preserve old TLB entries using PCID"), > > which I guess is where the problem might actually start showing up if > > it is pcid. > > Yup, that's what it bisected down to in the end. > > And then rebooting once more into that kernel, but with "nopcid" on > the command line, and it all works. > > I'll go back to top-of-tree just to verify that 'nopcid' thing there > too, but it does seem pretty clear-cut.
This is a "me too", observed on my Lenovo thinkpad x270 (so it's not specific to that XPS 13 system at all).
The symptom I observe is that an attempt to resume from hibernation proceeds up to reading 100% of the hibernation image, and then reboot happens (IOW looks like triple fault).
nopcid cures it, I haven't tried to revert 10af6235e0d3 yet, but looks like it's the same thing.
-- Jiri Kosina SUSE Labs
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