commit 6a4f3b52 causes invalid memtype
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From: Xiaotian Feng on 5 Jul 2010 05:00 On 07/05/2010 03:51 PM, Ali Gholami Rudi wrote: > Hi, > > In -rc4 kernel these messages appear in my dmesg (complete dmesg > at the end of this mail): > > [ 0.400777] swapper:1 freeing invalid memtype e0000000-e0040000 > ... > [ 0.453489] swapper:1 freeing invalid memtype e0000000-e0010000 > [ 0.453585] swapper:1 freeing invalid memtype e0041000-e0045000 > [ 0.453673] swapper:1 freeing invalid memtype e0045000-e0049000 > ... > [ 12.662571] fbpad:980 conflicting memory types e0049000-e0549000 uncached-minus<->write-combining > [ 12.662579] reserve_memtype failed 0xe0049000-0xe0549000, track uncached-minus, req uncached-minus > [ 13.303389] fbpad:980 map pfn expected mapping type uncached-minus for e0049000-e0549000, got write-combining > > The last 3 lines appear when mmap()ing nouveau framebuffer. > > I reverted this commit and everything seems ok once more: > > commit 6a4f3b523779b67e7d560ed42652f8a59f2f9782 > Author: Venkatesh Pallipadi<venki(a)google.com> > Date: Thu Jun 10 17:45:01 2010 -0700 > > x86, pat: Proper init of memtype subtree_max_end > > Thanks, > Ali Could you please try following commit in -tip tree? commit 2463eb8b3093995e09a0d41b3d78ee0cf5fb4249 Author: Peter Zijlstra <peterz(a)infradead.org> Date: Sat May 29 15:31:43 2010 +0200 rbtree: Undo augmented trees performance damage Thanks Xiaotian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
From: Ali Gholami Rudi on 5 Jul 2010 05:40 Xiaotian Feng <dfeng(a)redhat.com> wrote: > Could you please try following commit in -tip tree? > > commit 2463eb8b3093995e09a0d41b3d78ee0cf5fb4249 > Author: Peter Zijlstra <peterz(a)infradead.org> > Date: Sat May 29 15:31:43 2010 +0200 > > rbtree: Undo augmented trees performance damage Where can I get it? I couldn't find it either in Linus' or x86 repo tip. Thanks, Ali -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
From: Xiaotian Feng on 5 Jul 2010 05:40 On 07/05/2010 05:28 PM, Ali Gholami Rudi wrote: > Xiaotian Feng<dfeng(a)redhat.com> wrote: >> Could you please try following commit in -tip tree? >> >> commit 2463eb8b3093995e09a0d41b3d78ee0cf5fb4249 >> Author: Peter Zijlstra<peterz(a)infradead.org> >> Date: Sat May 29 15:31:43 2010 +0200 >> >> rbtree: Undo augmented trees performance damage > > Where can I get it? I couldn't find it either in > Linus' or x86 repo tip. http://git.kernel.org/tip/2463eb8b3093995e09a0d41b3d78ee0cf5fb4249 > > Thanks, > Ali > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
From: Ali Gholami Rudi on 5 Jul 2010 06:00 Xiaotian Feng <dfeng(a)redhat.com> wrote: > On 07/05/2010 05:28 PM, Ali Gholami Rudi wrote: > > Xiaotian Feng<dfeng(a)redhat.com> wrote: > >> Could you please try following commit in -tip tree? > >> > >> commit 2463eb8b3093995e09a0d41b3d78ee0cf5fb4249 > >> Author: Peter Zijlstra<peterz(a)infradead.org> > >> Date: Sat May 29 15:31:43 2010 +0200 > >> > >> rbtree: Undo augmented trees performance damage > > > > Where can I get it? I couldn't find it either in > > Linus' or x86 repo tip. > http://git.kernel.org/tip/2463eb8b3093995e09a0d41b3d78ee0cf5fb4249 It does fix it. Thanks, Ali -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
From: Ingo Molnar on 5 Jul 2010 06:50
* Ali Gholami Rudi <ali(a)rudi.ir> wrote: > Xiaotian Feng <dfeng(a)redhat.com> wrote: > > On 07/05/2010 05:28 PM, Ali Gholami Rudi wrote: > > > Xiaotian Feng<dfeng(a)redhat.com> wrote: > > >> Could you please try following commit in -tip tree? > > >> > > >> commit 2463eb8b3093995e09a0d41b3d78ee0cf5fb4249 > > >> Author: Peter Zijlstra<peterz(a)infradead.org> > > >> Date: Sat May 29 15:31:43 2010 +0200 > > >> > > >> rbtree: Undo augmented trees performance damage > > > > > > Where can I get it? I couldn't find it either in > > > Linus' or x86 repo tip. > > http://git.kernel.org/tip/2463eb8b3093995e09a0d41b3d78ee0cf5fb4249 > > It does fix it. Hm, interesting. That's a pure performance fix - so why does it fix a regression? Does Peter's augmented rbtrees improvements fix a bug too, as a side-effect? If yes then we need to accelerate that commit - right now it's aimed for v2.6.36. Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |