From owner-freebsd-alpha@FreeBSD.ORG Mon Nov 15 20:29:53 2004 Return-Path: Delivered-To: freebsd-alpha@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6AC5016A4CE; Mon, 15 Nov 2004 20:29:53 +0000 (GMT) Received: from smtp-vbr2.xs4all.nl (smtp-vbr2.xs4all.nl [194.109.24.22]) by mx1.FreeBSD.org (Postfix) with ESMTP id AB06343D1D; Mon, 15 Nov 2004 20:29:52 +0000 (GMT) (envelope-from wb@freebie.xs4all.nl) Received: from freebie.xs4all.nl (freebie.xs4all.nl [213.84.32.253]) by smtp-vbr2.xs4all.nl (8.12.11/8.12.11) with ESMTP id iAFKTpNe002869; Mon, 15 Nov 2004 21:29:51 +0100 (CET) (envelope-from wb@freebie.xs4all.nl) Received: from freebie.xs4all.nl (localhost [127.0.0.1]) by freebie.xs4all.nl (8.13.1/8.12.9) with ESMTP id iAFKToFk059908; Mon, 15 Nov 2004 21:29:51 +0100 (CET) (envelope-from wb@freebie.xs4all.nl) Received: (from wb@localhost) by freebie.xs4all.nl (8.13.1/8.13.1/Submit) id iAFKTo8R059907; Mon, 15 Nov 2004 21:29:50 +0100 (CET) (envelope-from wb) Date: Mon, 15 Nov 2004 21:29:50 +0100 From: Wilko Bulte To: Ruslan Ermilov Message-ID: <20041115202950.GB59855@freebie.xs4all.nl> References: <20041115081659.GA30262@ip.net.ua> <200411151112.49535.jhb@FreeBSD.org> <20041115185514.GA65300@ip.net.ua> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: <20041115185514.GA65300@ip.net.ua> X-OS: FreeBSD 4.10-STABLE X-PGP: finger wilko@freebsd.org User-Agent: Mutt/1.5.6i X-Virus-Scanned: by XS4ALL Virus Scanner cc: alpha@freebsd.org Subject: Re: Removing VGA card panics the box on boot X-BeenThere: freebsd-alpha@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting FreeBSD to the Alpha List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 15 Nov 2004 20:29:53 -0000 On Mon, Nov 15, 2004 at 08:55:14PM +0200, Ruslan Ermilov wrote.. > On Mon, Nov 15, 2004 at 11:12:49AM -0500, John Baldwin wrote: > > On Monday 15 November 2004 03:16 am, Ruslan Ermilov wrote: > > > Hi there, > > > > > > I needed the unused PCI VGA card for testing another machine, > > > so I pulled it out from my AlphaPC 164SX, and that gave me an > > > > > > instant panic on boot: > > > : Timecounter "i8254" frequency 1193182 Hz quality 0 > > > : Timecounter "alpha" frequency 533183689 Hz quality 800 > > > : Timecounters tick every 0.976 msec > > > : panic: mtx_lock() of spin mutex (null) @ /usr/src/sys/netinet/igmp.= c:431 > > > : cpuid =3D 0 > > > : KDB: enter: panic > > > : [thread 100004] > > > : Stopped at kdb_enter+0x48: or zero,zero,zero > > > : db> > > > > > > Putting it back in results in normal behavior (no panic). > > > Any hints? > >=20 > > Sounds like something is messing with free'd memory through a stale poi= nter=20 > > and happens to be trashing that spin mutex as a result. Not sure on ho= w to=20 > > track it down however. > >=20 > The funny thing is that it happens in exactly this same place, > and only when I pull the VGA card out. ;) 5.3- didn't do that to me for my DS10 when I took the VGA card out. SRM setting CONSOLE=3Dserial right? (should be but heh...) --=20 Wilko Bulte wilko@FreeBSD.org