From owner-freebsd-current@FreeBSD.ORG Wed Aug 12 21:13:55 2009 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 C2E8D1065670 for ; Wed, 12 Aug 2009 21:13:55 +0000 (UTC) (envelope-from pyunyh@gmail.com) Received: from mail-yx0-f181.google.com (mail-yx0-f181.google.com [209.85.210.181]) by mx1.freebsd.org (Postfix) with ESMTP id 720CD8FC47 for ; Wed, 12 Aug 2009 21:13:55 +0000 (UTC) Received: by yxe11 with SMTP id 11so443597yxe.3 for ; Wed, 12 Aug 2009 14:13:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:received:from:date:to:cc :subject:message-id:reply-to:references:mime-version:content-type :content-disposition:in-reply-to:user-agent; bh=Iv309wMo3D75mso3e26/B7dDnj55/29MPEGbjA1+go4=; b=N/z2Fm2UumJtsRodKKrzlK8ek6iGQy3/3E4f2c9q5IhTC0N51xJ4kuYJD3BVtPluXM 0Z5c3hgxNKaw9i5KIHm+igAjADRrYeLOsiLy5HHGr+DxUJafM6NhEDSngWbDQrrCJ3VG VG81J00pAUirPsc4KKaUnrvfWMIVQAWFS227M= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:date:to:cc:subject:message-id:reply-to:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=h8uIHAaumRq1tNaQMwxlYciH1V1jYchbT5zxzvWkS+ZiEuc+xwUL60ttZnkdjwqvTS 5nXUV/9Ea8NCrcqlGrjL2iRvhFAkhcKi9UfsSsbBMYd+UElxd4BrLEnc1qHQAOBbKchq /ktoVLFFBZqHQki/ZpfCUBRPUzEFiDg9UCOFc= Received: by 10.90.71.14 with SMTP id t14mr197640aga.66.1250108525242; Wed, 12 Aug 2009 13:22:05 -0700 (PDT) Received: from pyunyh@gmail.com ([174.35.1.224]) by mx.google.com with ESMTPS id 25sm339734aga.17.2009.08.12.13.22.03 (version=TLSv1/SSLv3 cipher=RC4-MD5); Wed, 12 Aug 2009 13:22:04 -0700 (PDT) Received: by pyunyh@gmail.com (sSMTP sendmail emulation); Wed, 12 Aug 2009 13:21:00 -0700 From: Pyun YongHyeon Date: Wed, 12 Aug 2009 13:21:00 -0700 To: Gavin Atkinson Message-ID: <20090812202100.GB55129@michelle.cdnetworks.com> References: <80f4f2b20908061705h6b218702ked110fa54d1bee5@mail.gmail.com> <1250088500.17787.6.camel@buffy.york.ac.uk> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="yrj/dFKFPuw6o+aM" Content-Disposition: inline In-Reply-To: <1250088500.17787.6.camel@buffy.york.ac.uk> User-Agent: Mutt/1.4.2.3i Cc: freebsd-current@freebsd.org, Jim Subject: Re: FreeBSD 8.0 Beta2 / ALC driver crashbase X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: pyunyh@gmail.com List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Aug 2009 21:13:56 -0000 --yrj/dFKFPuw6o+aM Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Wed, Aug 12, 2009 at 03:48:20PM +0100, Gavin Atkinson wrote: > On Thu, 2009-08-06 at 20:05 -0400, Jim wrote: > > I couldn't get the copy of the if_alc driver to compile in FreeBSD 7.2 > > on my new notebook, so I decided to use 8.0, and I found an issue, > > when I boot the installer media CD (boot only or DVD1), I get the > > following error: > > > > alc0: irq 16 at device 0.0 on pci7 > > alc0: 0x40000 bytes of rid 0x10 res 3 failed (0, 0xffffffffffffffff). > > alc0: cannot allocate memory resources). > > > > Fatal trap 12: page fault while in kernel mode > > cpuid = 0; apic id = 00 > > fatal virtual address = 0x08 > > fault code = supervisor read data, page not present > > instruction pointer = 0x20:0xffffffff0024c6e8 > > stack pointer = 0x20:0xffffffff813f65f0 > > frame pointer = 0x20:0xffffffff813f6600 > > code segment = base 0x0, limit 0xfffff, type 0x1b > > = DLP 0, pres 1, long 1, def32 0, gran 1 > > processor eflags = interrupt enabled, resume, IOPL = 0 > > correct process = 0 (swapper) > > [thread pid 0 tid 100000 ] > > Stopped at alc_phy_down+0x0: cmpq $0,0x8(xrax) > > db> > > > > > > I'm not knowledgeable about this to the point where I could debug the > > issue, is there anything I could do to provide the developers with the > > info needed to fix the issue, or could someone tell me how to boot the > > installer and force it to not load if_alc, and suggest give me an idea > > of what this means, in laymans terms so I can try to diagnose it? If I > > had to guess, I would say it's trying to access a chunk of > > memory/address-space that hasn't been allocated or doesn't exist, but > > I don't know if that's correct or where to go from there. > > First thing to do, at the "db> " prompt, enter "bt" and show us the > results. What version of FreeBSD is this? (8.0-BETA2 I'm assuming?) > > There are probably at least two issues here: 1) The allocation shouldn't > fail, but is, and 2) it shouldn't panic. Getting a backtrace (with "bt" > will hopefully be enough to figure out the second issue, but for the > first one we may need a full verbose dmesg from the system. Do you have I guess I found a bug in failure path. Try attached one. > a serial console hooked up to the machine with which you could obtain > this? > > Thanks, > > Gavin --yrj/dFKFPuw6o+aM Content-Type: text/x-diff; charset=us-ascii Content-Disposition: attachment; filename="alc.diff" Index: if_alc.c =================================================================== --- if_alc.c (revision 196104) +++ if_alc.c (working copy) @@ -858,7 +858,8 @@ sc->alc_intrhand[i] = NULL; } } - alc_phy_down(sc); + if (sc->alc_res_spec != NULL) + alc_phy_down(sc); bus_release_resources(dev, sc->alc_irq_spec, sc->alc_irq); if ((sc->alc_flags & (ALC_FLAG_MSI | ALC_FLAG_MSIX)) != 0) pci_release_msi(dev); --yrj/dFKFPuw6o+aM--