Date: Sat, 6 May 2000 22:48:47 +0200 From: Dave Boers <djb@ifa.au.dk> To: Terry Lambert <tlambert@primenet.com> Cc: Steve Passe <smp@csn.net>, Karl Pielorz <kpielorz@tdx.co.uk>, smp@FreeBSD.ORG Subject: Re: hlt instructions and temperature issues Message-ID: <20000506224847.A753@relativity.student.utwente.nl> In-Reply-To: <200005021832.LAA21819@usr01.primenet.com>; from tlambert@primenet.com on Tue, May 02, 2000 at 06:32:18PM %2B0000 References: <20000501161626.A4317@relativity.student.utwente.nl> <200005021832.LAA21819@usr01.primenet.com>
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On Tue, May 02, 2000 at 06:32:18PM +0000, Terry Lambert wrote:
> [ ... sysctl ... ]
>
> > This looks like an excellent proposal. Does anyone have comments, or could
> > someone with experience" in this area provide a patch?
>
> As an experiment to convince people, this is OK. As a permanent
> change, it's wrong.
>
> Without handling the stalling case, the code is incorrect, and _will_
> result in poorer performance on the first idle/resource wait.
Not only that, but (as I just found out) the stray irq 7's which I
mentioned earlier in the tread are a real problem. My system just hanged
during printer I/O.
I still have only the hlt instruction in the kernel. When not using the
printer, the system is fine.
Dave.
--
djb@ifa.au.dk d.j.boers@tn.utwente.nl
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