From: ebiederm@xmission.com (Eric W. Biederman)
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>,
Octavian Purdila <opurdila@ixiacom.com>,
David Miller <davem@davemloft.net>, Ingo Molnar <mingo@elte.hu>,
Michal Hocko <mhocko@suse.cz>,
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 21:20:05 -0800 [thread overview]
Message-ID: <m17hcx7wca.fsf@fess.ebiederm.org> (raw)
In-Reply-To: <AANLkTimzP0UNRXutkt1zJ+OGhmeg6ga87HFyMuZQmpMj@mail.gmail.com> (Linus Torvalds's message of "Thu, 17 Feb 2011 20:30:42 -0800")
Linus Torvalds <torvalds@linux-foundation.org> writes:
> On Thu, Feb 17, 2011 at 7:16 PM, Eric W. Biederman
> <ebiederm@xmission.com> wrote:
>>
>> Interesting. I just got this with DEBUG_PAGEALLOC
>> It looks like something in DEBUG_PAGEALLOC is interfering with taking a
>> successful crashdump.
>
> Hmm. I don't see why, but we don't care. Just the IP and the Code:
> section is plenty good enough.
I agree that is a different problem.
I care because I don't get my automatic reboot after the crash. Which
means things don't recover automatically, and I have to futz with the
machine.
> The patch from Eric Dumazet (which adds a few more cases to my patch
> and hopefully catches them all) almost certainly fixes this rather
> nasty memory corruption.
I will see if I can dig it up and get it into my test kernel.
Eric
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next prev parent reply other threads:[~2011-02-18 5:20 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
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 [this message]
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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