From owner-freebsd-current@FreeBSD.ORG Tue Jul 27 13:52:28 2010 Return-Path: Delivered-To: freebsd-current@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3874A1065672 for ; Tue, 27 Jul 2010 13:52:28 +0000 (UTC) (envelope-from gavin@FreeBSD.org) Received: from mail-gw0.york.ac.uk (mail-gw0.york.ac.uk [144.32.128.245]) by mx1.freebsd.org (Postfix) with ESMTP id A682C8FC16 for ; Tue, 27 Jul 2010 13:52:27 +0000 (UTC) Received: from mail-gw7.york.ac.uk (mail-gw7.york.ac.uk [144.32.129.30]) by mail-gw0.york.ac.uk (8.13.6/8.13.6) with ESMTP id o6RDqIrK004114; Tue, 27 Jul 2010 14:52:18 +0100 (BST) Received: from buffy-128.york.ac.uk ([144.32.128.160] helo=buffy.york.ac.uk) by mail-gw7.york.ac.uk with esmtps (TLSv1:AES256-SHA:256) (Exim 4.68) (envelope-from ) id 1OdkZu-0000Z2-I2; Tue, 27 Jul 2010 14:52:18 +0100 Received: from buffy.york.ac.uk (localhost [127.0.0.1]) by buffy.york.ac.uk (8.14.4/8.14.4) with ESMTP id o6RDqIQ0080214; Tue, 27 Jul 2010 14:52:18 +0100 (BST) (envelope-from gavin@FreeBSD.org) Received: (from ga9@localhost) by buffy.york.ac.uk (8.14.4/8.14.4/Submit) id o6RDqIvN080213; Tue, 27 Jul 2010 14:52:18 +0100 (BST) (envelope-from gavin@FreeBSD.org) X-Authentication-Warning: buffy.york.ac.uk: ga9 set sender to gavin@FreeBSD.org using -f From: Gavin Atkinson To: Anton Shterenlikht In-Reply-To: <20100727115831.GA46325@mech-cluster241.men.bris.ac.uk> References: <20100726132451.GA18443@mech-cluster241.men.bris.ac.uk> <1280226205.78791.0.camel@buffy.york.ac.uk> <20100727115831.GA46325@mech-cluster241.men.bris.ac.uk> Content-Type: text/plain; charset="ASCII" Content-Transfer-Encoding: quoted-printable Date: Tue, 27 Jul 2010 14:52:17 +0100 Message-ID: <1280238737.78791.20.camel@buffy.york.ac.uk> Mime-Version: 1.0 X-Mailer: Evolution 2.28.1 FreeBSD GNOME Team Port X-York-MailScanner: Found to be clean X-York-MailScanner-From: gavin@freebsd.org Cc: freebsd-current@FreeBSD.org Subject: Re: amd64 panic snd_hda - hdac_get_capabilities: Invalid corb size (0) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Tue, 27 Jul 2010 13:52:28 -0000 On Tue, 2010-07-27 at 12:58 +0100, Anton Shterenlikht wrote: > On Tue, Jul 27, 2010 at 11:23:24AM +0100, Gavin Atkinson wrote: > > On Mon, 2010-07-26 at 14:24 +0100, Anton Shterenlikht wrote: > > > On amd64 r210496 I get this panic when booting a kernel > > > with snd_hda(4). I haven't used this driver before, so > > > can't say if this is a regression. > > >=20 > > > (copied by hand) > > >=20 > > > hdac0: irq 16 at device= 20.2 on pci0 > > > hdac0: HDA Driver Revision: 20100226_0142 > > > hdac0: [ITHREAD] > > > hdac0: hdac_get_capabilities: Invalid corb size (0) > > > device_attach: hdac0 attach returned 6 > > > Slab at 0xffffff000261eb18, freei 3 =3D 0 > > > panic: Duplicate free of item 0xffffff0002661c00 from zone 0xffffff00= b7f9a500(1024) > > >=20 > > > cpuid =3D 0 > > > KDB: enter: panic > > > [ thread pid 0 tid 100000 ] > > > Stopped at kdb_enter+0x3d: movq $0,0x74f360(%rip) > > > db>bt > > >=20 > > > (very long output.. ending in) > >=20 > > Can you give us this output please? At least the "panic()" line and th= e > > next six or so lines? > >=20 >=20 > ok, will do. > I wish the modern laptops had a serial link.. Indeed. I keep buying Toshibas, who still have a range with serial ports. Having said that, have you tried to use the dcons stuff over firewire? That usually works pretty well in my experience. http://wiki.freebsd.org/DebugWithDcons Thanks, Gavin --=20 Gavin Atkinson FreeBSD committer and bugmeister