Re: 2.6.23-rc8-mm2: BUG near reiserfs_xattr_set

Andrew Morton
2007-09-27T19:49:25Z

On Thu, 27 Sep 2007 21:18:55 +0200
Laurent Riffard <laurent.riffard@free.fr> wrote:

> 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
>

Hi, Dave!

> 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
>