From owner-cvs-all@FreeBSD.ORG Thu Apr 13 06:16:36 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 589EE16A401; Thu, 13 Apr 2006 06:16:36 +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 ACA7B43D45; Thu, 13 Apr 2006 06:16:35 +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 <0IXN00JL3DFLMN@ms-dienst.rz.rwth-aachen.de>; Thu, 13 Apr 2006 08:16:34 +0200 (MEST) Received: from talos.rz.RWTH-Aachen.DE ([134.130.3.22]) by circe (MailMonitor for SMTP v1.2.2 ) ; Thu, 13 Apr 2006 08:16:33 +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 k3D6GWeR013047; Thu, 13 Apr 2006 08:16:32 +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 1FTv84-0002bB-Sx; Thu, 13 Apr 2006 08:16:32 +0200 Received: by haakonia.hitnet.rwth-aachen.de (Postfix, from userid 1001) id 98DAA3F42F; Thu, 13 Apr 2006 08:16:32 +0200 (CEST) Date: Thu, 13 Apr 2006 08:16:32 +0200 From: Christian Brueffer In-reply-to: <443D8BC1.1060200@errno.com> To: Sam Leffler Message-id: <20060413061632.GA1266@haakonia.hitnet.RWTH-Aachen.DE> MIME-version: 1.0 Content-type: multipart/signed; boundary=vkogqOf2sHV7VnPd; 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> <20060412212843.GH1258@haakonia.hitnet.RWTH-Aachen.DE> <20060412.160552.35796990.imp@bsdimp.com> <443D8BC1.1060200@errno.com> Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org, "M. Warner Losh" 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: Thu, 13 Apr 2006 06:16:36 -0000 --vkogqOf2sHV7VnPd Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Apr 12, 2006 at 04:22:41PM -0700, Sam Leffler wrote: > M. Warner Losh wrote: > >In message: <20060412212843.GH1258@haakonia.hitnet.RWTH-Aachen.DE> > > Christian Brueffer writes: > >: 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= =20 > >read > >: > in the ISR doesn't read the actual socket event register, but inst= ead > >: > 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 > >:=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. > >:=20 > >: What kind of debug info can I provide? > > > >A Thinkpad T41p. :-) > > > >Failing that, can you set hw.cbb.debug=3D1 and provide me with the > >output. >=20 > I'm not seeing issues with this code on a t41p here so there may be=20 > something else that matters. >=20 I sent the debug output to Warner privately. Basically it works when the card is plugged in during system startup but not when I plug it in afterwards (doesn't produce any debug messages then either). This is the output when the card is plugged in during startup: Status is 0x30000186 Status is 0x30000920 cbb1: card inserted: event=3D0x00000000, state=3D30000920 cbb1: cbb_power: 3V Interrupt storm detected on "irq5:"; throttling interrupt source cardbus1: at device 0.0 (no driver attached) cbb1: cbb_power: 0V - Christan --=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 --vkogqOf2sHV7VnPd Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (FreeBSD) iD4DBQFEPezAbHYXjKDtmC0RAl0SAJ0R7+71/3o+6tRjegy9cw2Osp6lHwCY+aU/ YgRHkvR11GQNLA+xo71HKw== =KLLd -----END PGP SIGNATURE----- --vkogqOf2sHV7VnPd--