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From: Helge Deller <deller@gmx.de>
To: Thibaut VARENE <varenet@esiee.fr>,
	Tilo Riemer <t.riemer@visoel.de>
Subject: Re: [parisc-linux] ksoftirqd eats 100% cpu :-(
Date: Mon, 7 Oct 2002 21:52:04 +0200
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On Monday 07 October 2002 17:20, Thibaut VARENE wrote:
> Tilo Riemer wrote:
> > Hello list,
> >
> > I use Debian 3.0 on an HP9000/710. Almost all works fine, but the
> > ksoftirqd eats all cpu time. I read that it's a bug in the kernel. Is
> > there a patch for fixing this problem?
>
> It's a well known bug. on 7x0 and 7x5 boxes.

It's a bug/feature related to the HIL drivers. 
Since we have to poll the HIL ports the whole time
the bunch of running timers increase the ksoftirqd load a lot.

> Maybe we should add a faq entry ?

This would be great.

Helge