On Wed, 2015-10-28 at 07:37 +0900, Linus Torvalds wrote: > On Tue, Oct 27, 2015 at 11:05 PM, Stas Sergeev <s...@list.ru> wrote: > > > > I can't easily post an Oops: under X it doesn't even appear - > > machine freezes immediately, and under non-KMS console it is > > possible to get one, but difficult to screen-shot (using bare > > metal, not VM). Also the Oops was seemingly unrelated. > > And if you run "dosemu -s" under non-KMS console, you'll also > > reproduce this one: > > https://bugzilla.kernel.org/show_bug.cgi?id=97321 > > Hmm. Andrew Morton responded to that initially, but then nothing > happened, and now it's been another six months. Andrew? > > The arch/x86/mm/pat.c error handling does seem to be suspect. This is > all code several years old, so none of this is new, and I think Suresh > is gone. Adding a few other people with recent sign-offs to that > file, in the hope that somebody feels like they own it..
In the case of PFNMAP, the range should always be mapped. So, I wonder why follow_phys() failed with the !pte_present() check. Stas, do you have a test program that can reproduce 97321? -Toshi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
