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Date: Mon, 7 Jan 2002 10:51:14 +0100 (CET)
From: Richard Guenther <rguenth@tat.physik.uni-tuebingen.de>
To: Oliver Paukstadt <pstadt@stud.fh-heilbronn.de>
cc: Andrew Morton <akpm@zip.com.au>, Matti Aarnio <matti.aarnio@zmailer.org>,
        Linux-Kernel <linux-kernel@vger.kernel.org>,
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Subject: Re: 2.4.17 RAID-1 EXT3  reliable to hang....
In-Reply-To: <Pine.LNX.4.33.0201070933590.4076-100000@lola.stud.fh-heilbronn.de>
Message-ID: <Pine.LNX.4.33.0201071047410.17279-100000@bellatrix.tat.physik.uni-tuebingen.de>
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On Mon, 7 Jan 2002, Oliver Paukstadt wrote:

> Heavy traffic on ext3 seems to cause short system freezes.

I see dropped frames while watching TV (bttv chip, xawtv in overlay mode,
XFree 4.1.0)
since I use ext3 (2.4.16&17). Always during disk activity (IDE, umask irq
and dma enabled). From what I know the bttv driver does it seems to loose
interrupts!? This doesnt happen with ext2.

> Seems only to happen on 2 or more processor boxes.

Nope, UP Athlon.

> I'm not deep into kernel nor ext3, but how is the journal flushed if
> full?

By any chance, is some global lock held during any IO intensive part of
ext3?

Richard.

--
Richard Guenther <richard.guenther@uni-tuebingen.de>
WWW: http://www.tat.physik.uni-tuebingen.de/~rguenth/
The GLAME Project: http://www.glame.de/

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