From owner-cvs-all@FreeBSD.ORG Wed Apr 12 21:30:47 2006 Return-Path: X-Original-To: cvs-all@FreeBSD.org Delivered-To: cvs-all@FreeBSD.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id BC2FB16A405; Wed, 12 Apr 2006 21:30:47 +0000 (UTC) (envelope-from chris@hitnet.RWTH-Aachen.DE) Received: from ms-dienst.rz.rwth-aachen.de (ms-2.rz.RWTH-Aachen.DE [134.130.3.131]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6862643D53; Wed, 12 Apr 2006 21:30:39 +0000 (GMT) (envelope-from chris@hitnet.RWTH-Aachen.DE) Received: from circe (circe.rz.RWTH-Aachen.DE [134.130.3.36]) by ms-dienst.rz.rwth-aachen.de (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTP id <0IXM00BY6P1R2W@ms-dienst.rz.rwth-aachen.de>; Wed, 12 Apr 2006 23:29:52 +0200 (MEST) Received: from talos.rz.RWTH-Aachen.DE ([134.130.3.22]) by circe (MailMonitor for SMTP v1.2.2 ) ; Wed, 12 Apr 2006 23:28:44 +0200 (MEST) Received: from bigboss.hitnet.rwth-aachen.de (bigspace.hitnet.RWTH-Aachen.DE [137.226.181.2]) by smarthost.rwth-aachen.de (8.13.1/8.13.1/1) with ESMTP id k3CLShZa003187; Wed, 12 Apr 2006 23:28:43 +0200 Received: from milan.hitnet.rwth-aachen.de ([137.226.181.144] helo=haakonia.hitnet.rwth-aachen.de) by bigboss.hitnet.rwth-aachen.de with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA:32) (Exim 4.50) id 1FTmtH-0000Tb-UC; Wed, 12 Apr 2006 23:28:43 +0200 Received: by haakonia.hitnet.rwth-aachen.de (Postfix, from userid 1001) id B3C403F40A; Wed, 12 Apr 2006 23:28:43 +0200 (CEST) Date: Wed, 12 Apr 2006 23:28:43 +0200 From: Christian Brueffer In-reply-to: <200603300425.k2U4PjJH099559@repoman.freebsd.org> To: Warner Losh Message-id: <20060412212843.GH1258@haakonia.hitnet.RWTH-Aachen.DE> MIME-version: 1.0 Content-type: multipart/signed; boundary="oyqLL/JqMvClXZi1"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-disposition: inline User-Agent: Mutt/1.5.11 X-Operating-System: FreeBSD 6.1-PRERELEASE X-PGP-Key: http://people.FreeBSD.org/~brueffer/brueffer.key.asc X-PGP-Fingerprint: A5C8 2099 19FF AACA F41B B29B 6C76 178C A0ED 982D References: <200603300425.k2U4PjJH099559@repoman.freebsd.org> Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/dev/pccbb pccbb.c X-BeenThere: cvs-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Apr 2006 21:30:47 -0000 --oyqLL/JqMvClXZi1 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Mar 30, 2006 at 04:25:45AM +0000, Warner Losh wrote: > imp 2006-03-30 04:25:45 UTC >=20 > FreeBSD src repository >=20 > Modified files: > sys/dev/pccbb pccbb.c=20 > Log: > On some laptops, under very high loads, the socket event register read > in the ISR doesn't read the actual socket event register, but instead > reads garbage (usually 0xffffffff, but other times other things). > This totally violates the PCI spec, but happens rarely enough that a > workaround is in order. This adds one test when we have a real > interrupt to service (which is very rare), and doesn't affect the > usualy 'nothing to see here' case at all. > =20 > Problem reported by many, but sam@ gave me this workaround after > diagnosing the problem. > =20 This breaks pccard/cardbus support on my Thinkpad T41p (confirmed by backing this change out). With this change, I just get an "Interrupt storm detected on irq 5; throttling" message. What kind of debug info can I provide? - Christian --=20 Christian Brueffer chris@unixpages.org brueffer@FreeBSD.org GPG Key: http://people.freebsd.org/~brueffer/brueffer.key.asc GPG Fingerprint: A5C8 2099 19FF AACA F41B B29B 6C76 178C A0ED 982D --oyqLL/JqMvClXZi1 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (FreeBSD) iD8DBQFEPXELbHYXjKDtmC0RAg2VAKDljmb/4ISCQfA2DOe5nV0Omqw+oACgpvwg xmq+xoxRUlnk8nIqFgUv9gQ= =3RwI -----END PGP SIGNATURE----- --oyqLL/JqMvClXZi1--