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Date: Fri, 28 Mar 2008 17:17:17 +0100 From: "Rafael J. Wysocki" <rjw@...k.pl> To: Adrian Bunk <bunk@...nel.org> Cc: Thomas Gleixner <tglx@...utronix.de>, Peter Zijlstra <peterz@...radead.org>, LKML <linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...ux-foundation.org>, Linus Torvalds <torvalds@...ux-foundation.org>, Natalie Protasevich <protasnb@...il.com> Subject: Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24 On Friday, 28 of March 2008, Adrian Bunk wrote: > On Fri, Mar 28, 2008 at 12:16:03PM +0100, Thomas Gleixner wrote: > > On Fri, 28 Mar 2008, Adrian Bunk wrote: > > > On Fri, Mar 28, 2008 at 12:00:25PM +0100, Peter Zijlstra wrote: > > > > On Fri, 2008-03-28 at 11:58 +0100, Thomas Gleixner wrote: > > > > > On Fri, 28 Mar 2008, Thomas Gleixner wrote: > > > > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=9969 > > > > > > > Subject : 2.6.24-git15 Keyboard Issue? > > > > > > > Submitter : Chris Holvenstot <cholvenstot@...cast.net> > > > > > > > Date : 2008-02-06 14:02 (51 days old) > > > > > > > References : http://lkml.org/lkml/2008/2/6/100 > > > > > > > http://lkml.org/lkml/2008/2/13/82 > > > > > > > Handled-By : Thomas Gleixner <tglx@...utronix.de> > > > > > > > Patch : http://lkml.org/lkml/2008/2/15/343 > > > > > > > > > > > > asked the bug reporter for an update. > > > > > > > > > > Now that lkml.org is working again, I checked the patch which is > > > > > referenced above and I have a hard time to connect it even remotely to > > > > > that bug. > > > > > > > > > > As far as I can tell the discussion on lkml identified GROUP_SCHED=y > > > > > as the culprit, but I have no idea whether there was any resolution > > > > > other than disabling GROUP_SCHED. > > > > > > > > > > Peter ?? > > > > > > > > Correct, I am working on the issue but that's not going to be .25 stuff. > > > > > > How are we going to get 2.6.25 working no worse than 2.6.24? > > > > > > Letting GROUP_SCHED depend on BROKEN would sound logical, but that would > > > also kill FAIR_GROUP_SCHED. > > > > I think default it to off should be sufficient. > > A system administrator saying yes to GROUP_SCHED when running > "make oldconfig" can hardly be blamed for doing so, and "makes your > mouse and keyboard unusable" mustn't be the result. > > Avoiding unexpected breakages when toggling an option is _much_ more > important than e.g. whether some exotic randconfig configuration > compiles. Perhaps add something like "(UNRELIABLE)" to the Kconfig option? 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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