From owner-freebsd-current@FreeBSD.ORG Thu Nov 24 07:42:59 2005 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A907C16A41F for ; Thu, 24 Nov 2005 07:42:59 +0000 (GMT) (envelope-from frank@exit.com) Received: from tinker.exit.com (tinker.exit.com [206.223.0.1]) by mx1.FreeBSD.org (Postfix) with ESMTP id F1AB643D81 for ; Thu, 24 Nov 2005 07:42:45 +0000 (GMT) (envelope-from frank@exit.com) Received: from realtime.exit.com (realtime [206.223.0.5]) by tinker.exit.com (8.13.4/8.13.4) with ESMTP id jAO7gX9F031757; Wed, 23 Nov 2005 23:42:33 -0800 (PST) (envelope-from frank@exit.com) Received: from realtime.exit.com (localhost [127.0.0.1]) by realtime.exit.com (8.13.4/8.13.4) with ESMTP id jAO7gXn9045491; Wed, 23 Nov 2005 23:42:33 -0800 (PST) (envelope-from frank@exit.com) Received: (from frank@localhost) by realtime.exit.com (8.13.4/8.13.4/Submit) id jAO7gWM4045490; Wed, 23 Nov 2005 23:42:32 -0800 (PST) (envelope-from frank@exit.com) X-Authentication-Warning: realtime.exit.com: frank set sender to frank@exit.com using -f From: Frank Mayhar To: Barney Wolff In-Reply-To: <20051124071405.GA15743@pit.databus.com> References: <002801c5f081$f01ff200$642a15ac@smiley> <4384F807.6050105@samsco.org> <14BE0E5B-F596-4CB2-8048-07FC275C089F@lassitu.de> <20051124071405.GA15743@pit.databus.com> Content-Type: text/plain Content-Transfer-Encoding: 7bit Organization: Exit Consulting Date: Wed, 23 Nov 2005 23:42:32 -0800 Message-Id: <1132818152.54736.7.camel@realtime.exit.com> Mime-Version: 1.0 X-Mailer: Evolution 2.4.1 FreeBSD GNOME Team Port X-Virus-Scanned: ClamAV 0.87.1/1191/Wed Nov 23 15:50:25 2005 on tinker.exit.com X-Virus-Status: Clean Cc: freebsd-current@freebsd.org Subject: Re: em interrupt storm X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: frank@exit.com List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Nov 2005 07:42:59 -0000 On Thu, 2005-11-24 at 02:14 -0500, Barney Wolff wrote: > I've observed the interrupt aliasing problem on an Asus A7M266-D > with 2 Athlon 2200-MPs, so it's not confined to the Intel chipset. > Here's the evidence (there is nothing connected to ehci0): This prompted me to take a look at my setup. Sure enough, same thing: realtime ~>vmstat -i interrupt total rate irq1: atkbd0 6218 0 irq3: sio1 2 0 irq4: sio0 245363 1 irq6: fdc0 3 0 irq12: psm0 379932 2 irq13: npx0 1 0 irq16: ohci2 1651974 9 irq17: pcm0 ehci0 35766600 198 irq18: nvidia0++ 15223737 84 irq19: xl0 ohci0+ 2407671 13 irq20: ahc0 1610309 8 irq21: em0 35275352 196 cpu0: timer 359360608 1998 cpu1: timer 359337445 1998 Total 811265215 4512 I haven't been using pcm0 and there's nothing on ohci2. This is a dual Athlon MP 1900+, AMD chipset (Tyan Tiger MPX board)... realtime ~>uname -a FreeBSD realtime.exit.com 6.0-STABLE FreeBSD 6.0-STABLE #0: Wed Nov 16 19:57:03 PST 2005 frank@jill.exit.com:/usr/obj/usr/src/sys/REALTIME i386 -- Frank Mayhar frank@exit.com http://www.exit.com/ Exit Consulting http://www.gpsclock.com/ http://www.exit.com/blog/frank/