linux-kernel - Re: 2.6.23-rc8-mm2: BUG near reiserfs_xattr

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Message-ID: <46FC021F.8060109@free.fr>
Date:	Thu, 27 Sep 2007 21:18:55 +0200
From:	Laurent Riffard <laurent.riffard@...e.fr>
To:	linux-kernel@...r.kernel.org
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-fsdevel@...r.kernel.org, reiserfs-devel@...r.kernel.org
Subject: Re: 2.6.23-rc8-mm2: BUG near reiserfs_xattr_set

Le 27.09.2007 11:22, Andrew Morton a écrit :
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.23-rc8/2.6.23-rc8-mm2/

I've got this BUG a few seconds after I logged in into Gnome desktop :

[partially hand copied BUG]
BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000
printing eip: c016f55e *pde=0b8a5067 *pte=00000000
Oops: 0002 [#1] PREEMPT
...
Process beagled...
...
Call Trace:
 __fput+0x124/0x1a9
 fput+0x31/0x35
 reiserfs_xattr_set+0x291/0x2b0 [reiserfs]
 user_set+0x4c/0x57 [reiserfs]
 reiserfs_setxattr+0x81/0xf1 [reiserfs]
 vfs_setxattr+0x7d/0xfa
 setxattr+0xb9/0xd1
 sys_lsetxattr+0x4c/0x85
 sysenter_past_esp+0x57/0x85

EIP: mnt_drop_write+0x5b/0x9d

It's fully reproducible.

/home is mounted with the following options:
   /dev/mapper/vglinux1-lvhome on /home type reiserfs (rw,noatime,nodiratime,user_xattr)

This BUG happened with rc8-mm1 too.
rc6-mm1 works fine.
I didn't try rc7-mm1.

.config attached.
~~
laurent

View attachment "config-2.6.23-rc8-mm2" of type "text/plain" (48463 bytes)