From owner-freebsd-current@FreeBSD.ORG Thu Jul 8 14:10:27 2004 Return-Path: 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 E447316A4D0 for ; Thu, 8 Jul 2004 14:10:27 +0000 (GMT) Received: from gate1.psi.de (gate1.psi.de [194.115.214.187]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4B76C43D31 for ; Thu, 8 Jul 2004 14:10:27 +0000 (GMT) (envelope-from thorsten@tgreiner.net) Received: from [172.18.1.50] (host-172.194.115.213.psi.de [194.115.213.172]) by gate1.psi.de (8.12.8/8.11.3) with ESMTP id i68EAN1u027824; Thu, 8 Jul 2004 16:10:23 +0200 Received: from infra-nev-exf.psi.de ([194.115.215.7]) by [172.18.1.50] with Microsoft SMTPSVC(5.0.2195.6713); Thu, 8 Jul 2004 16:10:23 +0200 Received: from comm-nev1.nev.psi.de ([194.115.215.40]) by infra-nev-exf.psi.de with Microsoft SMTPSVC(5.0.2195.6713); Thu, 8 Jul 2004 16:10:23 +0200 Received: from localhost. (dhcp144.nev.psi.de [192.168.142.144]) by comm-nev1.nev.psi.de (8.8.8+Sun/8.8.8) with ESMTP id QAA15915; Thu, 8 Jul 2004 16:10:22 +0200 (MET DST) Received: from localhost. (localhost [127.0.0.1]) by localhost. (8.12.11/8.12.11) with ESMTP id i68EAM5w000873; Thu, 8 Jul 2004 16:10:22 +0200 (CEST) (envelope-from thorsten@tgreiner.net) Received: (from thorsten@localhost) by localhost. (8.12.11/8.12.11/Submit) id i68EALtQ000872; Thu, 8 Jul 2004 16:10:21 +0200 (CEST) (envelope-from thorsten@tgreiner.net) X-Authentication-Warning: localhost.: thorsten set sender to thorsten@tgreiner.net using -f Date: Thu, 8 Jul 2004 16:10:21 +0200 From: Thorsten Greiner To: Taku YAMAMOTO Message-ID: <20040708141020.GA839@tybalt.nev.psi.de> References: <20040705184940.GA2651@tybalt.greiner.local> <20040708222143.0f24c076.taku@tackymt.homeip.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="T4sUOijqQbZv57TR" Content-Disposition: inline In-Reply-To: <20040708222143.0f24c076.taku@tackymt.homeip.net> X-GPG-Fingerprint: ED45 DF41 BE30 6FF5 DC4F 15C3 4538 6598 E865 F66A User-Agent: Mutt/1.5.6i X-OriginalArrivalTime: 08 Jul 2004 14:10:23.0118 (UTC) FILETIME=[4F2AB2E0:01C464F5] cc: freebsd-current@freebsd.org Subject: Re: Native preemption is the culprit [was Re: today's CURRENT lockups] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 08 Jul 2004 14:10:28 -0000 --T4sUOijqQbZv57TR Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable * Taku YAMAMOTO [2004-07-08 15:31]: > This patch is tested on P4@2.8GHz HTT-enabled machine. >=20 > It has been running for several hours without a hang, although I have to > admit that this machine is too idle, far from being stressed. On my box I get these warnings: Jul 8 15:56:46 tybalt kernel: ad0: WARNING - WRITE_DMA interrupt was seen but timeout fired LBA=3D4063551 Jul 8 15:57:03 tybalt kernel: ad0: WARNING - READ_DMA interrupt was seen but timeout fired LBA=3D19449983 Jul 8 15:57:30 tybalt kernel: ad0: WARNING - READ_DMA interrupt was seen but timeout fired LBA=3D19981629 Jul 8 15:57:50 tybalt kernel: ad0: WARNING - READ_DMA interrupt was seen but timeout fired LBA=3D11457711 Jul 8 15:58:22 tybalt kernel: ad0: WARNING - READ_DMA interrupt was seen but timeout fired LBA=3D24073775 Jul 8 15:58:25 tybalt kernel: ad0: WARNING - WRITE_DMA interrupt was seen but timeout fired LBA=3D25168335 This is while performing a background fsck. In this state the system seems to hang, probably waiting for some disk i/o to finish. Regards -Thorsten --=20 Unix is user friendly, it's just particular about the friends it chooses. =20 This message is digitally signed. To verify its integrity, download a copy of GnuPG for your operating system from http://www.gnupg.org . --T4sUOijqQbZv57TR Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFA7VXMRThlmOhl9moRAnBhAJwPDkl5roTgAge+MoONp2guhXVkMQCgyN+r 47NZXdLfQzV9oWvzW6OCs3A= =AxSB -----END PGP SIGNATURE----- --T4sUOijqQbZv57TR--