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Date: Mon, 9 Nov 2009 16:47:03 +0100 From: "Rafael J. Wysocki" <rjw@...k.pl> To: Mike Galbraith <efault@....de> Cc: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>, LKML <linux-kernel@...r.kernel.org>, pm list <linux-pm@...ts.linux-foundation.org>, Greg KH <gregkh@...e.de>, Linus Torvalds <torvalds@...ux-foundation.org>, Jesse Barnes <jbarnes@...tuousgeek.org> Subject: Re: Help needed: Resume problems in 2.6.32-rc, perhaps related to preempt_count leakage in keventd On Monday 09 November 2009, Mike Galbraith wrote: > On Mon, 2009-11-09 at 15:26 +0100, Rafael J. Wysocki wrote: > > > Well, I can add the printk(), but I can't guarantee that I will get the call > > trace once again. So far I've seen it only once after 20-25 consecutive > > suspend-resume cycles, so ... you get the idea. > > > > However, running on a wrong CPU would very nicely explain all of the observed > > symptoms, so I guess we can try a House M.D.-alike approach and assume that the > > answer is "yes, we're running on the wrong CPU". What would we do next if that > > was the case? > > If you're interested in trying a patch, I have a couple that fix things > up here. My "get a bigger hammer" patch would be best if it's what I > think it is. If it only fails once in a blue moon though, maybe not > worth even trying. If I could suspend/resume, I'd try it myself, but I > have (steenking) nvidia card. No eyecandy or resume for me, though I > can suspend... once. OK, please send me (a) poiter(s) to the patches. I'll first try the patch you've just sent and report back. Thanks, Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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