From: Borislav Petkov <bp@alien8.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Rik van Riel <riel@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Minchan Kim <minchan.kim@gmail.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Lee Schermerhorn <Lee.Schermerhorn@hp.com>,
Nick Piggin <npiggin@suse.de>,
Andrea Arcangeli <aarcange@redhat.com>,
Hugh Dickins <hugh.dickins@tiscali.co.uk>,
sgunderson@bigfoot.com
Subject: Re: [PATCH -v2] rmap: make anon_vma_prepare link in all the anon_vmas of a mergeable VMA
Date: Sat, 10 Apr 2010 09:27:14 +0200 [thread overview]
Message-ID: <20100410072714.GA9246@liondog.tnic> (raw)
In-Reply-To: <alpine.LFD.2.00.1004091730130.3558@i5.linux-foundation.org>
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri, Apr 09, 2010 at 05:32:36PM -0700
> Exactly. This is the "let's limit things a bit to keep them much simpler.
You gotta love that rule :)
> > Let's hope it fixes Boris's issue.
>
> I'm going to just guess that it won't, and that Boris' issue was actually
> due to something else entirely, and we've all been staring at totally the
> wrong code.
>
> But we can hope.
Now why would you go and jinx it like that... :)
Hibernation runs back-to-back:
1. light system load after boot... ok
2. 3 kvm guests, 3Gb mem free of 8Gb total acc. to /proc/meminfo... ok [ this was the fireproof way to trigger the bug, btw]
3. kvm guests down, firefox loading a 4Mb html page... ok
4. start ubuntu guest, firefox keeps loading the 4Mb html page after previous resume... ok
5. ubuntu guest booting done, firefox done, play video... ok
6. video broken after resume due to:
[AO_ALSA] Pcm in suspend mode, trying to resume. 212% 2% 1.7% 1 0
[AO_ALSA] alsa-lib: pcm_hw.c:709:(snd_pcm_hw_resume) SNDRV_PCM_IOCTL_RESUME failed: Function not implemented
i.e., unrelated... still ok
7. ubuntu guest downloading a 100Mb file causing allocation of a bunch of anon memory in the host... ok
8. all guests off, firefox off, back to light load... ok
No oopsies or problems in dmesg except the old lockdep sysfs warning.
I will keep running that kernel in the next couple of days and keep you
informed in case this is the fix we're gonna use.
--
Regards/Gruss,
Boris.
next prev parent reply other threads:[~2010-04-10 7:27 UTC|newest]
Thread overview: 231+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-30 17:50 Linux 2.6.34-rc3 Linus Torvalds
2010-03-30 21:16 ` [Regression, post-rc2] Commit a5ee4eb7541 breaks OpenGL on RS780 (was: Re: Linux 2.6.34-rc3) Rafael J. Wysocki
2010-03-31 20:34 ` [stable] " Greg KH
2010-04-01 1:13 ` Rafael J. Wysocki
2010-04-01 2:19 ` Alex Deucher
2010-04-01 6:36 ` Clemens Ladisch
2010-04-01 15:01 ` Alex Deucher
2010-04-01 20:28 ` Rafael J. Wysocki
2010-04-01 20:39 ` Alex Deucher
2010-04-01 20:48 ` Rafael J. Wysocki
2010-04-01 21:00 ` Alex Deucher
2010-04-01 21:01 ` Alex Deucher
2010-04-01 21:08 ` Rafael J. Wysocki
2010-04-01 21:13 ` Alex Deucher
2010-04-01 21:46 ` Rafael J. Wysocki
2010-04-01 22:07 ` Alex Deucher
2010-04-01 23:20 ` Rafael J. Wysocki
2010-04-02 0:23 ` Linus Torvalds
2010-04-02 16:46 ` Rafael J. Wysocki
2010-04-03 18:08 ` Clemens Ladisch
2010-04-03 19:33 ` Rafael J. Wysocki
2010-04-01 16:29 ` Linus Torvalds
2010-04-01 17:07 ` Alex Deucher
2010-04-01 17:24 ` Linus Torvalds
2010-04-01 17:50 ` [Regression, post-rc2] Commit a5ee4eb7541 breaks OpenGL on RS780 Clemens Ladisch
2010-04-01 17:53 ` [Regression, post-rc2] Commit a5ee4eb7541 breaks OpenGL on RS780 (was: Re: Linux 2.6.34-rc3) Alex Deucher
2010-04-01 20:17 ` Linus Torvalds
2010-04-01 20:23 ` Alex Deucher
2010-04-01 19:46 ` Rafael J. Wysocki
2010-04-01 22:48 ` Jesse Barnes
2010-04-01 23:23 ` Rafael J. Wysocki
2010-04-02 17:59 ` Ugly rmap NULL ptr deref oopsie on hibernate (was " Borislav Petkov
2010-04-02 18:09 ` Linus Torvalds
2010-04-02 15:24 ` Andrew Morton
2010-04-02 18:37 ` Linus Torvalds
2010-04-02 22:01 ` Rik van Riel
2010-04-03 0:19 ` Linus Torvalds
2010-04-04 16:12 ` Minchan Kim
2010-04-04 17:24 ` Rik van Riel
2010-04-04 23:09 ` [PATCH] rmap: fix anon_vma_fork() memory leak Rik van Riel
2010-04-04 23:56 ` Minchan Kim
2010-04-05 15:37 ` Linus Torvalds
2010-04-05 15:48 ` Minchan Kim
2010-04-05 16:04 ` Rik van Riel
2010-04-05 16:13 ` [PATCH -v2] " Rik van Riel
2010-04-06 8:53 ` Ugly rmap NULL ptr deref oopsie on hibernate (was Linux 2.6.34-rc3) KOSAKI Motohiro
2010-04-06 10:09 ` KOSAKI Motohiro
2010-04-06 14:34 ` Rik van Riel
2010-04-06 14:38 ` Rik van Riel
2010-04-06 15:34 ` Minchan Kim
2010-04-06 15:40 ` Rik van Riel
2010-04-06 15:58 ` Minchan Kim
2010-04-06 15:55 ` Linus Torvalds
2010-04-06 16:23 ` Minchan Kim
2010-04-06 16:28 ` Linus Torvalds
2010-04-06 16:45 ` Minchan Kim
2010-04-06 16:53 ` Linus Torvalds
2010-04-06 17:04 ` Rik van Riel
2010-04-06 18:28 ` Linus Torvalds
2010-04-06 19:03 ` Andrew Morton
2010-04-06 19:10 ` Steinar H. Gunderson
2010-04-06 19:10 ` Linus Torvalds
2010-04-06 19:35 ` Linus Torvalds
2010-04-06 19:42 ` Borislav Petkov
2010-04-06 20:02 ` Linus Torvalds
2010-04-06 20:46 ` Steinar H. Gunderson
2010-04-06 20:56 ` Linus Torvalds
2010-04-06 21:05 ` Steinar H. Gunderson
2010-04-06 20:51 ` Borislav Petkov
2010-04-06 21:27 ` Linus Torvalds
2010-04-06 22:59 ` Borislav Petkov
2010-04-06 23:27 ` Linus Torvalds
2010-04-06 23:54 ` [PATCH] rmap: make anon_vma_prepare link in all the anon_vmas of a mergeable VMA Rik van Riel
2010-04-07 7:00 ` KOSAKI Motohiro
2010-04-07 14:48 ` Rik van Riel
2010-04-07 14:54 ` [PATCH -v2] " Rik van Riel
2010-04-07 15:30 ` Linus Torvalds
2010-04-07 15:52 ` Rik van Riel
2010-04-07 16:56 ` Linus Torvalds
2010-04-07 21:19 ` Linus Torvalds
2010-04-07 21:52 ` Rik van Riel
2010-04-07 22:09 ` Linus Torvalds
2010-04-07 22:15 ` Linus Torvalds
2010-04-08 0:38 ` Rik van Riel
2010-04-07 23:37 ` Linus Torvalds
2010-04-08 2:03 ` KOSAKI Motohiro
2010-04-08 2:33 ` Linus Torvalds
2010-04-08 5:47 ` Borislav Petkov
2010-04-08 14:11 ` Linus Torvalds
2010-04-08 18:25 ` Rik van Riel
2010-04-08 18:32 ` Linus Torvalds
2010-04-08 20:31 ` Borislav Petkov
2010-04-08 21:00 ` Borislav Petkov
2010-04-08 23:16 ` Linus Torvalds
2010-04-08 23:47 ` Borislav Petkov
2010-04-09 0:50 ` Linus Torvalds
2010-04-09 1:30 ` Borislav Petkov
2010-04-09 9:21 ` Borislav Petkov
2010-04-09 16:35 ` Linus Torvalds
2010-04-09 17:40 ` Borislav Petkov
2010-04-09 17:50 ` Linus Torvalds
2010-04-09 19:14 ` Borislav Petkov
2010-04-09 19:32 ` Linus Torvalds
2010-04-09 20:03 ` Rik van Riel
2010-04-09 20:43 ` Johannes Weiner
2010-04-09 20:57 ` Rik van Riel
2010-04-09 21:33 ` Borislav Petkov
2010-04-09 23:22 ` Linus Torvalds
2010-04-09 23:45 ` Rik van Riel
2010-04-10 0:03 ` Linus Torvalds
2010-04-10 0:11 ` Rik van Riel
2010-04-09 23:54 ` Johannes Weiner
2010-04-09 23:56 ` Linus Torvalds
2010-04-10 0:19 ` Rik van Riel
2010-04-10 0:31 ` Johannes Weiner
2010-04-10 0:32 ` Linus Torvalds
2010-04-10 7:27 ` Borislav Petkov [this message]
2010-04-10 11:26 ` Borislav Petkov
2010-04-10 14:45 ` Rik van Riel
2010-04-10 15:24 ` Linus Torvalds
2010-04-10 16:38 ` Borislav Petkov
2010-04-10 17:05 ` Linus Torvalds
2010-04-10 18:21 ` Linus Torvalds
2010-04-10 18:26 ` Linus Torvalds
2010-04-10 18:51 ` Borislav Petkov
2010-04-10 18:58 ` Borislav Petkov
2010-04-10 20:05 ` Linus Torvalds
2010-04-10 20:12 ` Linus Torvalds
2010-04-10 20:36 ` Borislav Petkov
2010-04-10 20:40 ` Linus Torvalds
2010-04-10 21:25 ` Borislav Petkov
2010-04-10 21:30 ` Linus Torvalds
2010-04-10 21:51 ` Borislav Petkov
2010-04-11 13:08 ` Borislav Petkov
2010-04-11 13:19 ` [PATCH 1/3] mm: make page freeing path RCU-safe Borislav Petkov
2010-04-11 13:19 ` [PATCH 2/3] mm: cleanup find_mergeable_anon_vma complexity Borislav Petkov
2010-04-11 13:19 ` [PATCH 3/3] mm: fixup vma_adjust Borislav Petkov
2010-04-11 13:25 ` [PATCH 2/3] mm: cleanup find_mergeable_anon_vma complexity Borislav Petkov
2010-04-11 17:07 ` [PATCH -v2] rmap: make anon_vma_prepare link in all the anon_vmas of a mergeable VMA Linus Torvalds
2010-04-11 17:16 ` Linus Torvalds
2010-04-11 18:55 ` Borislav Petkov
2010-04-12 0:13 ` Linus Torvalds
2010-04-12 1:04 ` Linus Torvalds
2010-04-12 7:20 ` Borislav Petkov
2010-04-12 16:02 ` Linus Torvalds
2010-04-12 16:26 ` Linus Torvalds
2010-04-12 18:40 ` Rik van Riel
2010-04-12 19:00 ` Borislav Petkov
2010-04-12 19:17 ` Linus Torvalds
2010-04-12 20:22 ` [PATCH 1/4] Simplify and comment on anon_vma re-use for anon_vma_prepare() Linus Torvalds
2010-04-12 20:23 ` [PATCH 2/4] vma_adjust: fix the copying of anon_vma chains Linus Torvalds
2010-04-12 20:23 ` [PATCH 3/4] anon_vma: clone the anon_vma chain in the right order Linus Torvalds
2010-04-12 20:23 ` [PATCH 4/4] anonvma: when setting up page->mapping, we need to pick the _oldest_ anonvma Linus Torvalds
2010-04-12 21:03 ` Rik van Riel
2010-04-13 0:41 ` Johannes Weiner
2010-04-13 1:08 ` Linus Torvalds
2010-04-13 4:23 ` Minchan Kim
2010-04-13 4:26 ` Minchan Kim
2010-04-12 20:57 ` [PATCH 3/4] anon_vma: clone the anon_vma chain in the right order Rik van Riel
2010-04-13 0:18 ` Johannes Weiner
2010-04-13 4:16 ` Minchan Kim
2010-04-12 20:54 ` [PATCH 2/4] vma_adjust: fix the copying of anon_vma chains Rik van Riel
2010-04-12 23:59 ` Johannes Weiner
2010-04-13 4:15 ` Minchan Kim
2010-04-12 20:54 ` [PATCH 1/4] Simplify and comment on anon_vma re-use for anon_vma_prepare() Rik van Riel
2010-04-12 23:54 ` Johannes Weiner
2010-04-13 4:04 ` Minchan Kim
2010-04-13 9:51 ` Peter Zijlstra
2010-04-12 21:50 ` [PATCH -v2] rmap: make anon_vma_prepare link in all the anon_vmas of a mergeable VMA Borislav Petkov
2010-04-12 22:11 ` Linus Torvalds
2010-04-12 22:18 ` Linus Torvalds
2010-04-12 22:29 ` Borislav Petkov
2010-04-13 9:38 ` Borislav Petkov
2010-04-14 21:59 ` [PATCH] rmap: add exclusively owned pages to the newest anon_vma Rik van Riel
2010-04-14 23:20 ` Johannes Weiner
2010-04-15 8:34 ` Borislav Petkov
2010-04-15 16:02 ` Minchan Kim
2010-04-15 20:01 ` Linus Torvalds
2010-04-16 6:09 ` Felipe Balbi
2010-04-16 14:48 ` Linus Torvalds
2010-04-11 19:49 ` [PATCH -v2] rmap: make anon_vma_prepare link in all the anon_vmas of a mergeable VMA Rik van Riel
2010-04-12 15:44 ` Linus Torvalds
2010-04-12 15:51 ` Rik van Riel
2010-04-11 21:45 ` Rik van Riel
2010-04-12 15:51 ` Linus Torvalds
2010-04-13 10:36 ` KOSAKI Motohiro
2010-04-10 20:24 ` Rik van Riel
2010-04-10 20:34 ` Linus Torvalds
2010-04-10 20:43 ` Rik van Riel
2010-04-10 20:32 ` Rik van Riel
2010-04-10 19:36 ` Rik van Riel
2010-04-12 14:40 ` Peter Zijlstra
2010-04-12 15:17 ` Minchan Kim
2010-04-12 15:33 ` Peter Zijlstra
2010-04-12 15:19 ` Rik van Riel
2010-04-12 16:01 ` Peter Zijlstra
2010-04-12 16:06 ` Rik van Riel
2010-04-12 16:46 ` Linus Torvalds
2010-04-12 18:40 ` Peter Zijlstra
2010-04-12 19:30 ` Peter Zijlstra
2010-04-12 19:44 ` Peter Zijlstra
2010-04-13 10:53 ` KOSAKI Motohiro
2010-04-13 11:30 ` Peter Zijlstra
2010-04-13 12:00 ` KOSAKI Motohiro
2010-04-14 14:27 ` Peter Zijlstra
2010-04-10 17:07 ` Borislav Petkov
2010-04-10 16:41 ` Linus Torvalds
2010-04-10 22:49 ` Johannes Weiner
2010-04-10 23:31 ` Linus Torvalds
2010-04-09 1:45 ` KOSAKI Motohiro
2010-04-07 15:55 ` Minchan Kim
2010-04-07 7:29 ` Ugly rmap NULL ptr deref oopsie on hibernate (was Linux 2.6.34-rc3) Borislav Petkov
2010-04-07 14:05 ` Paulo Marques
2010-04-07 14:13 ` Borislav Petkov
2010-04-06 23:37 ` Linus Torvalds
2010-04-06 23:22 ` Rik van Riel
2010-04-07 0:10 ` Linus Torvalds
2010-04-07 1:18 ` Rik van Riel
2010-04-07 7:22 ` Borislav Petkov
2010-04-07 10:09 ` Pekka Enberg
2010-04-07 10:12 ` KOSAKI Motohiro
2010-04-07 8:41 ` Peter Zijlstra
2010-04-07 8:36 ` Peter Zijlstra
2010-04-07 9:16 ` Johannes Weiner
2010-04-07 9:37 ` Peter Zijlstra
2010-04-07 14:12 ` Rik van Riel
2010-04-07 15:46 ` Linus Torvalds
2010-04-06 16:32 ` Linus Torvalds
2010-04-06 16:54 ` Minchan Kim
2010-04-07 8:37 ` Peter Zijlstra
2010-04-06 17:05 ` Borislav Petkov
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