From: Ben Greear <greearb@candelatech.com>
To: Robert Olsson <Robert.Olsson@data.slu.se>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: ksoftirqd_CPU0 spinning in 2.4.21-pre3
Date: Thu, 23 Jan 2003 10:32:15 -0800 [thread overview]
Message-ID: <3E30352F.1080100@candelatech.com> (raw)
In-Reply-To: <15920.796.897388.111085@robur.slu.se>
Robert Olsson wrote:
> Ben Greear writes:
> > I happened to notice that my ksoftirqd_CPU0 process started spinning
> > at 99% CPU when I plugged in the ports to a tulip NIC. I didn't see
> > any significant amount of interrupts when I looked at /proc/interrupts,
> > and there was no traffic running.
> >
> > However, this is also running a hacked up tulip-napi driver, so it
> > could very well be my problem. I have not seen this on any other kernel
> > in several months though...
> >
> > Anyway, if anyone has seen this, I'd like to know. Otherwise, I'll blame
> > my code and start poking at things...
>
> Well it can be normal operation if box is highly loaded...
There was zero network load on the box. I think there must be a bug in
my napi-ization of the tulip driver. Since I coppied it almost verbatim
from your stuff, you might want to check too :)
Ben
--
Ben Greear <greearb@candelatech.com> <Ben_Greear AT excite.com>
President of Candela Technologies Inc http://www.candelatech.com
ScryMUD: http://scry.wanfear.com http://scry.wanfear.com/~greear
next prev parent reply other threads:[~2003-01-23 18:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-22 19:44 ksoftirqd_CPU0 spinning in 2.4.21-pre3 Ben Greear
2003-01-23 14:58 ` Robert Olsson
2003-01-23 18:32 ` Ben Greear [this message]
2003-01-24 12:21 ` Robert Olsson
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