Re: 2.4.17 RAID-1 EXT3 reliable to hang....

Richard Guenther (rguenth@tat.physik.uni-tuebingen.de)
Mon, 7 Jan 2002 10:51:14 +0100 (CET)


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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