linux-kernel - 2.6.27.14: BUG: lock held when returning to user space!

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Message-ID: <20090225142136.GA29505@janus>
Date:	Wed, 25 Feb 2009 15:21:36 +0100
From:	Frank van Maarseveen <frankvm@...nkvm.com>
To:	linux-kernel@...r.kernel.org
Subject: 2.6.27.14: BUG: lock held when returning to user space!

An lvextend -L+16G command for a logical volume while being mounted rw
as ext3 triggered the following on 2.6.27.14:

================================================
[ BUG: lock held when returning to user space! ]
------------------------------------------------
lvextend/29191 is leaving the kernel with locks still held!
2 locks held by lvextend/29191:
 #0: (&type->s_umount_key #15){....}, at: [<c019edfb>] get_super+0x6b/0xb0
 #1: (&journal->j_barrier){....}, at: [<c01f9af3>] journal_lock_updates+0xc3/0xd0

-- 
Frank
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