From owner-freebsd-current@FreeBSD.ORG Sun May 9 02:59:24 2010 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 712811065677 for ; Sun, 9 May 2010 02:59:24 +0000 (UTC) (envelope-from jamesbrandongooch@gmail.com) Received: from mail-gw0-f54.google.com (mail-gw0-f54.google.com [74.125.83.54]) by mx1.freebsd.org (Postfix) with ESMTP id 2BC238FC0C for ; Sun, 9 May 2010 02:59:23 +0000 (UTC) Received: by gwaa20 with SMTP id a20so997149gwa.13 for ; Sat, 08 May 2010 19:59:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=vKTh6iX1yQ8cIygIwp8Py+LLslX9n49yUaZhwJME8vU=; b=vtg7+8tkXamz6prRnmJXPOJvb5WfCYtPGlVWK7BzJ+cK7fcmonHmhmasZKVUTOaatI 4wHGxCub55t/7QmJ8tgf9z3N9bIcAdcaSwOkh07XX2gR0z5jzdmol1ixwcn5NFIM/KTX hLcAZI/M6ys3NStxzPz5JVjj059WxN4Xy1Pq8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=Xuia9zIxws+uKy8iaXuR5k/9mXhhlSRuWn7lk/nek7376kkgUvsHkGoNnkH3Js52U2 w9hNqJI2wGsbz5LXZagmoFsj+CeeL9H8jHYG5wbU7QP0dIXwVl53i06GuVDIoAAHBpny 35xk6DUSh5IMyYYuW7bB7os82+sBicli16g/w= MIME-Version: 1.0 Received: by 10.231.191.138 with SMTP id dm10mr1124444ibb.73.1273373963224; Sat, 08 May 2010 19:59:23 -0700 (PDT) Received: by 10.231.115.3 with HTTP; Sat, 8 May 2010 19:59:23 -0700 (PDT) In-Reply-To: <20100508203549.GA8088@exodus.desync.com> References: <20100508200032.GB31100@weongyo> <20100508203549.GA8088@exodus.desync.com> Date: Sat, 8 May 2010 21:59:23 -0500 Message-ID: From: Brandon Gooch To: ben wilber Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: Benjamin Kaduk , current@freebsd.org Subject: Re: a panic on uart_z8530_class? 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: Sun, 09 May 2010 02:59:24 -0000 On Sat, May 8, 2010 at 3:35 PM, ben wilber wrote: > On Sat, May 08, 2010 at 04:11:49PM -0400, Benjamin Kaduk wrote: >> > [root@test ~]# kgdb /boot/kernel/kernel /var/crash/vmcore.1 >> > GNU gdb 6.1.1 [FreeBSD] >> > Copyright 2004 Free Software Foundation, Inc. >> > GDB is free software, covered by the GNU General Public License, and y= ou are >> > welcome to change it and/or distribute copies of it under certain cond= itions. >> > Type "show copying" to see the conditions. >> > There is absolutely no warranty for GDB. =A0Type "show warranty" for d= etails. >> > This GDB was configured as "amd64-marcel-freebsd"... >> > Cannot access memory at address 0xffffff0127ffffe0 >> > (kgdb) bt >> > #0 =A00x0000000000000000 in ?? () >> > Cannot access memory at address 0x0 >> > (kgdb) q >> >> >> I have seen this behavior from kgdb --- it doesn't seem to be able to >> handle coredumps I've made recently. =A0At first I thought that I manage= d to >> trash either my kernel image or kgdb binary with all the unclean >> shutdowns I've been having, but if you're seeing kgdb failures, maybe it= 's >> not just my local system. >> >> Yet I am assuming that this is not broken for *everyone*, or we would ha= ve >> heard more noise about it. >> >> I'm running a current snapshot from April 4th; maybe I will try updating >> to a new snapshot tonight and see if kgdb behaves better after everythin= g >> is rebuilt. > > Same here, for the last couple months maybe. I'll chime in here with a "me too". Since at early April, I've been trying to figure out why my laptop locks up overnight (something about the CPUs going into C3). I can nearly always get it to coredump, but the vmcore files I generate are unusable... -Brandon