From: Michal Hocko <mhocko@suse.cz>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ingo Molnar <mingo@elte.hu>,
linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: BUG: Bad page map in process udevd (anon_vma: (null)) in 2.6.38-rc4
Date: Thu, 17 Feb 2011 10:09:10 +0100 [thread overview]
Message-ID: <20110217090910.GA3781@tiehlicka.suse.cz> (raw)
In-Reply-To: <AANLkTi=xnbcs5BKj3cNE_aLtBO7W5m+2uaUacu7M8g_S@mail.gmail.com>
On Wed 16-02-11 12:09:35, Linus Torvalds wrote:
> On Wed, Feb 16, 2011 at 11:50 AM, Linus Torvalds
> <torvalds@linux-foundation.org> wrote:
> >
> > Yup, goodie. It does look like it might be exactly the same thing,
> > except now the offset seems to be 0x1e68 instead of 0x1768.
>
> It was 0x1748 in Eric's case. Background for Michal:
>
> http://lkml.org/lkml/2011/2/14/223
I have seen that thread but I didn't think it is related. I thought
this is an another anon_vma issue. But you seem to be right that the
offset pattern can be related.
>
> Michal - if you can re-create this, it would be wonderful if you can
> enable CONFIG_DEBUG_PAGEALLOC. I didn't find any obvious candidates
> yet.
OK. I have just booted with the same kernel and the config turned on.
Let's see if I am able to reproduce.
Btw.
$ objdump -d ./vmlinux-2.6.38-rc4-00001-g07409af-vmscan-test | grep 0x1e68
didn't print out anything. Do you have any other way to find out the
structure?
--
Michal Hocko
SUSE Labs
SUSE LINUX s.r.o.
Lihovarska 1060/12
190 00 Praha 9
Czech Republic
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next prev parent reply other threads:[~2011-02-17 9:09 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-16 18:52 Michal Hocko
2011-02-16 19:37 ` Ingo Molnar
2011-02-16 19:50 ` Linus Torvalds
2011-02-16 20:09 ` Linus Torvalds
2011-02-16 20:51 ` Linus Torvalds
2011-02-17 9:09 ` Michal Hocko [this message]
2011-02-17 16:13 ` Linus Torvalds
2011-02-17 16:26 ` Michal Hocko
2011-02-17 16:35 ` Ingo Molnar
2011-02-17 18:57 ` Eric W. Biederman
2011-02-17 19:11 ` Linus Torvalds
2011-02-17 19:31 ` Eric W. Biederman
2011-02-18 3:16 ` Eric W. Biederman
2011-02-18 4:30 ` Linus Torvalds
2011-02-18 4:36 ` David Miller
2011-02-18 6:25 ` Eric Dumazet
2011-02-18 7:29 ` Eric Dumazet
2011-02-18 8:54 ` [PATCH 1/2] net: dont leave active on stack LIST_HEAD Eric Dumazet
2011-02-18 20:14 ` David Miller
2011-02-18 4:38 ` BUG: Bad page map in process udevd (anon_vma: (null)) in 2.6.38-rc4 Linus Torvalds
2011-02-18 4:40 ` David Miller
2011-02-18 4:57 ` Linus Torvalds
2011-02-18 8:29 ` Eric W. Biederman
2011-02-18 5:20 ` Eric W. Biederman
2011-02-18 8:41 ` Eric Dumazet
2011-02-18 8:59 ` [PATCH 2/2] net: deinit automatic LIST_HEAD Eric Dumazet
2011-02-18 20:14 ` David Miller
2011-02-18 12:29 ` BUG: Bad page map in process udevd (anon_vma: (null)) in 2.6.38-rc4 Michal Hocko
2011-02-18 16:26 ` Michal Hocko
2011-02-18 16:39 ` Linus Torvalds
2011-02-18 18:08 ` Eric W. Biederman
2011-02-18 18:48 ` Linus Torvalds
2011-02-18 19:01 ` Arnaldo Carvalho de Melo
2011-02-18 19:11 ` Arnaldo Carvalho de Melo
2011-02-18 20:38 ` Eric W. Biederman
2011-02-19 8:35 ` [PATCH] tcp: fix inet_twsk_deschedule() Eric Dumazet
2011-02-20 2:59 ` David Miller
2011-02-18 19:13 ` BUG: Bad page map in process udevd (anon_vma: (null)) in 2.6.38-rc4 Eric Dumazet
2011-02-18 19:56 ` David Miller
2011-02-19 6:22 ` Eric W. Biederman
2011-02-19 15:33 ` Linus Torvalds
2011-02-20 2:01 ` Eric W. Biederman
2011-02-20 6:15 ` Linus Torvalds
2011-02-20 8:27 ` Eric Dumazet
2011-02-20 19:53 ` David Miller
2011-02-20 21:34 ` Eric W. Biederman
2011-02-18 8:54 ` Michal Hocko
2011-02-20 12:43 ` Ingo Molnar
2011-02-17 16:36 ` Eric Dumazet
2011-02-17 17:07 ` Linus Torvalds
2011-02-17 19:36 ` Eric Dumazet
2011-02-17 20:18 ` Linus Torvalds
2011-02-16 20:13 ` Ingo Molnar
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