From owner-freebsd-hackers@FreeBSD.ORG Wed Apr 9 12:14:09 2003 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9986537B401 for ; Wed, 9 Apr 2003 12:14:09 -0700 (PDT) Received: from xorpc.icir.org (xorpc.icir.org [192.150.187.68]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2961743F3F for ; Wed, 9 Apr 2003 12:14:09 -0700 (PDT) (envelope-from rizzo@xorpc.icir.org) Received: from xorpc.icir.org (localhost [127.0.0.1]) by xorpc.icir.org (8.12.8p1/8.12.3) with ESMTP id h39JE8Bp023357; Wed, 9 Apr 2003 12:14:08 -0700 (PDT) (envelope-from rizzo@xorpc.icir.org) Received: (from rizzo@localhost) by xorpc.icir.org (8.12.8p1/8.12.3/Submit) id h39JE8EH023356; Wed, 9 Apr 2003 12:14:08 -0700 (PDT) (envelope-from rizzo) Date: Wed, 9 Apr 2003 12:14:08 -0700 From: Luigi Rizzo To: John Polstra Message-ID: <20030409121408.A23344@xorpc.icir.org> References: <20030409114957.GN83126@cicely9.cicely.de> <20030409144042.B901@beagle.fokus.fraunhofer.de> <200304091900.h39J0igT063938@strings.polstra.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <200304091900.h39J0igT063938@strings.polstra.com>; from jdp@polstra.com on Wed, Apr 09, 2003 at 12:00:44PM -0700 cc: hackers@freebsd.org Subject: Re: realtime problem X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Apr 2003 19:14:09 -0000 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. cheers luigi > Thanks, > John > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org"