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From: Paul Mackerras <paulus@samba.org>
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Date: Tue, 14 May 2002 12:15:22 +1000 (EST)
To: Andrew Morton <akpm@zip.com.au>
Cc: linux-kernel@vger.kernel.org
Subject: Re: ext3 deadlock?
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Andrew Morton writes:

> It appears that kjournald has submitted a block for writeout
> (via submit_bh() or ll_rw_block()) and the interrupt which
> signifies completion simply hasn't happened.

Ahhh...  I had a "hdparm -m16 -d1 -u1 /dev/hda" command in
/etc/rc.d/rc.sysinit.  If I take that out it doesn't lock up.

So it is an IDE bug not an ext3 bug.  Thanks for the clue.

Paul.