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Date: Wed, 9 Apr 2003 12:16:35 -0700 (PDT)
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To: hackers@freebsd.org
From: John Polstra <jdp@polstra.com>
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Organization: Polstra & Co., Seattle, WA
cc: rizzo@icir.org
Subject: Re: realtime problem
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In article <20030409121408.A23344@xorpc.icir.org>,
Luigi Rizzo  <rizzo@icir.org> wrote:
> On Wed, Apr 09, 2003 at 12:00:44PM -0700, John Polstra wrote:
> ...
> > Huh?  I'm not aware of any hz-related botches in the mii code.
> > Could you give me a specific example?  I'd like to fix it if I can
> > find it.
> 
> it is not hz-related, the fact is that some PHY events are
> handled by busy-waiting in the interrupt service routine
> thus causing unpredictable latencies in the response to
> interrupts.

Ah, I get it now.  Thanks for the clarification!

John