From: ebiederm@xmission.com (Eric W. Biederman)
To: Andrew Morton <akpm@osdl.org>
Cc: linux-kernel@vger.kernel.org, pj@sgi.com
Subject: Re: [PATCH] proc: task_mmu bug fix.
Date: Wed, 01 Mar 2006 05:49:13 -0700 [thread overview]
Message-ID: <m1oe0qnxdi.fsf@ebiederm.dsl.xmission.com> (raw)
In-Reply-To: <20060228234628.55ee9f76.akpm@osdl.org> (Andrew Morton's message of "Tue, 28 Feb 2006 23:46:28 -0800")
Andrew Morton <akpm@osdl.org> writes:
> ebiederm@xmission.com (Eric W. Biederman) wrote:
>>
>> This should fix the big bug that has been crashing kernels when
>> fuser is called. At least it is the bug I observed here. It seems
>> you need the right access pattern on /proc/<pid>/maps to trigger this.
>
> Thanks. Do you think this is likely to fix the crashes reported by
> Laurent, Jesper, Paul, Rafael and Martin?
So I haven't tracked down all of the bug reports yet. But the
few bits I have seen make it likely. First the task_mmu change
was one of the largest change in logic I had to make. Second
the ugly bug reports seem to be about an extra decrement. Third
it seems to be my task_ref work that is the most implicated.
I will certainly follow and see what I can do to confirm that I have
gotten everything.
Eric
next prev parent reply other threads:[~2006-03-01 13:00 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200603010120.k211KqVP009559@shell0.pdx.osdl.net>
2006-03-01 2:18 ` + proc-dont-lock-task_structs-indefinitely-cpuset-fix-2.patch added to -mm tree Paul Jackson
2006-03-01 2:36 ` Andrew Morton
2006-03-01 3:45 ` Paul Jackson
2006-03-01 4:10 ` Paul Jackson
2006-03-01 5:05 ` Eric W. Biederman
2006-03-01 5:25 ` Paul Jackson
2006-03-01 6:11 ` Eric W. Biederman
2006-03-01 6:15 ` Eric W. Biederman
2006-03-01 7:20 ` [PATCH] proc: Reference couting fix Eric W. Biederman
2006-03-01 7:26 ` [PATCH] proc: task_mmu bug fix Eric W. Biederman
2006-03-01 7:46 ` Andrew Morton
2006-03-01 12:49 ` Eric W. Biederman [this message]
2006-03-01 13:14 ` Hugh Dickins
2006-03-01 13:15 ` Rafael J. Wysocki
2006-03-01 18:33 ` Paul Jackson
2006-03-01 7:48 ` + proc-dont-lock-task_structs-indefinitely-cpuset-fix-2.patch added to -mm tree Paul Jackson
2006-03-01 8:26 ` Andrew Morton
2006-03-01 8:39 ` Paul Jackson
2006-03-01 9:53 ` Paul Jackson
2006-03-01 10:02 ` Andrew Morton
2006-03-01 10:14 ` Paul Jackson
2006-03-01 10:11 ` Paul Jackson
2006-03-01 10:31 ` Paul Jackson
2006-03-01 19:21 ` Greg KH
2006-03-01 20:58 ` Paul Jackson
2006-03-01 21:30 ` Greg KH
2006-03-01 22:26 ` Andrew Morton
2006-03-01 22:50 ` Greg KH
2006-03-01 23:20 ` Paul Jackson
2006-03-01 23:40 ` Andrew Morton
2006-03-02 0:10 ` Paul Jackson
2006-03-02 0:35 ` Paul Jackson
2006-03-01 23:10 ` Paul Jackson
2006-03-01 23:40 ` Paul Jackson
2006-03-02 4:20 ` Andrew Morton
2006-03-02 6:14 ` Paul Jackson
2006-03-02 7:42 ` Andrew Morton
2006-03-02 19:12 ` Paul Jackson
2006-03-02 21:52 ` Andrew Morton
2006-03-03 6:33 ` Paul Jackson
2006-03-03 6:44 ` Andrew Morton
2006-03-01 4:31 ` Eric W. Biederman
2006-03-01 4:58 ` Paul Jackson
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