linux-ext4 - [Bug 51391] BUG: unable to handle kernel NULL pointer dereference

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Message-Id: <20130211100451.D64AC11FF22@bugzilla.kernel.org>
Date:	Mon, 11 Feb 2013 10:04:51 +0000 (UTC)
From:	bugzilla-daemon@...zilla.kernel.org
To:	linux-ext4@...r.kernel.org
Subject: [Bug 51391] BUG: unable to handle kernel NULL pointer dereference

https://bugzilla.kernel.org/show_bug.cgi?id=51391


Alexey Khoroshilov <khoroshilov@...uxtesting.org> changed:

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--- Comment #10 from Alexey Khoroshilov <khoroshilov@...uxtesting.org>  2013-02-11 10:04:51 ---
(In reply to comment #4)
> Hmm, I looked at the stack trace again, and I see "sys_inotify_rm_watch" in the
> stack trace.  I wonder if this is a generic VFS-level inotify bug, perhaps?   

It looks like it is actually a data race in VFS layer:
https://patchwork.kernel.org/patch/1685431/

We observed the same issue with JFS file system.

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