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Date: Fri, 09 Sep 2005 12:05:13 +0100
From: David Vrabel <dvrabel@arcom.com>
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Subject: Badness in do_exit after remounting JFFS2 read-only
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Hi,

With 2.6.13 remounting a JFFS2 filesystem read-only results in

Badness in do_exit at
/home/dvrabel/embed/qed/linux-2.6-working/kernel/exit.c:787
[<c001c8f8>] (dump_stack+0x0/0x14) from [<c002f9d0>] (do_exit+0x44/0xb0c)
[<c002f98c>] (do_exit+0x0/0xb0c) from [<c00304b8>] (sys_exit+0x0/0x18)
[<c0030498>] (complete_and_exit+0x0/0x20) from [<c00a4c30>]
(jffs2_garbage_collect_thread+0x124/0x12c)
[<c00a4b0c>] (jffs2_garbage_collect_thread+0x0/0x12c) from [<c002f98c>]
(do_exit+0x0/0xb0c)
 r6 = 00000000  r5 = 00000000  r4 = 00000000

This is the WARN_ON(atomic_read(&tsk->fs_excl)); in do_exit().

I can't work out where .fs_excl is being set though.  It doesn't seem to
be anywhere in the JFFS2 code.

David Vrabel
-- 
David Vrabel, Design Engineer

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