From: Theodore Tso <tytso@mit.edu>
To: Andrew Price <andy@andrewprice.me.uk>
Cc: linux-kernel@vger.kernel.org
Subject: Re: BUG: using rootfstype=ext4 causes oops
Date: Thu, 16 Apr 2009 00:19:45 -0400 [thread overview]
Message-ID: <20090416041945.GK21586@mit.edu> (raw)
In-Reply-To: <20090415205926.GA28246@sucs.org>
On Wed, Apr 15, 2009 at 09:59:26PM +0100, Andrew Price wrote:
> Using rootfstype=ext4 with today's linux-2.6.git causes a panic on my
> two amd64 machines (haven't tested it on any others).
Hmm, git commit id, please? The stack traces are in the IDE interrupt
handler, so it seems surprising that ext4 would trigger it but ext3
would not. Have you tried ext4 on any earlier kernel?
The main difference I can think of is that ext4 enables barriers by
default; maybe that's the case of the IDE breakage? Can you try
booting with the boot command option "rootfsflags=barrier=0" as well
as "rootfstype=ext4", and see if that helps?
If so, it's a bug in the IDE code in that it's not handling barriers
correctly.
- Ted
next prev parent reply other threads:[~2009-04-16 4:19 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-15 20:59 BUG: using rootfstype=ext4 causes oops Andrew Price
2009-04-16 4:19 ` Theodore Tso [this message]
2009-04-16 10:47 ` Andrew Price
2009-04-16 14:53 ` Theodore Tso
2009-04-16 16:02 ` Bartlomiej Zolnierkiewicz
2009-04-16 17:05 ` Andrew Price
2009-04-16 19:22 ` Bartlomiej Zolnierkiewicz
2009-04-16 16:38 ` Andrew Price
2009-04-16 16:55 ` Theodore Tso
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