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Re: XFS "freezes" on AMD systems

To: Chris Wedgwood <cw@xxxxxxxx>
Subject: Re: XFS "freezes" on AMD systems
From: Matthias Klose <doko@xxxxxxxxxxxxxxx>
Date: Wed, 25 Sep 2002 22:07:32 +0200
Cc: linux-xfs@xxxxxxxxxxx, Harald Wagener <hwagener@xxxxxxxxxxxxxxx>
In-reply-to: <20020925075844.GA26750@tapu.f00f.org>
References: <15761.27018.659158.237109@gargle.gargle.HOWL> <20020925075844.GA26750@tapu.f00f.org>
Sender: linux-xfs-bounce@xxxxxxxxxxx
Chris Wedgwood writes:
> On Wed, Sep 25, 2002 at 09:45:14AM +0200, Matthias Klose wrote:
> 
> > When unpacking large tarballs or copying data bigger than 20MB on a
> > XFS file system, the system seems to freeze for about three to five
> > seconds
> 
> [...]
> 
> > but only on Athlon/Duron based systems, both using IDE drives. I
> > don't see this type of freeze on a Celeron based system.
> 
> At a guess...
> 
> What IDE chipset?  I would guess the chipset used on the Duran/Athlon
> systems isn't using DMA for IDE transfer but rather PIO.
> 
> hdparm(8) may help here, or you may beed to recompile the kernel with
> different IDE chipset support[1].

Thanks for the pointer! That fixed my setup.


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