From owner-freebsd-hackers@FreeBSD.ORG Fri Jul 19 15:29:15 2013 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id F1B3CE12; Fri, 19 Jul 2013 15:29:15 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from bigwig.baldwin.cx (bigwig.baldwin.cx [IPv6:2001:470:1f11:75::1]) by mx1.freebsd.org (Postfix) with ESMTP id D0DABFCA; Fri, 19 Jul 2013 15:29:15 +0000 (UTC) Received: from jhbbsd.localnet (unknown [209.249.190.124]) by bigwig.baldwin.cx (Postfix) with ESMTPSA id 3496BB94C; Fri, 19 Jul 2013 11:29:15 -0400 (EDT) From: John Baldwin To: Yuri Subject: Re: Kernel crashes after sleep: how to debug? Date: Fri, 19 Jul 2013 11:00:08 -0400 User-Agent: KMail/1.13.5 (FreeBSD/8.2-CBSD-20110714-p25; KDE/4.5.5; amd64; ; ) References: <51E3A334.8020203@rawbw.com> <201307181652.48757.jhb@freebsd.org> <51E88EDA.50000@rawbw.com> In-Reply-To: <51E88EDA.50000@rawbw.com> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201307191100.08549.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.7 (bigwig.baldwin.cx); Fri, 19 Jul 2013 11:29:15 -0400 (EDT) Cc: Alan Cox , freebsd-hackers@freebsd.org X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Jul 2013 15:29:16 -0000 On Thursday, July 18, 2013 8:56:58 pm Yuri wrote: > On 07/18/2013 13:52, John Baldwin wrote: > > Are you in frame 8? > > For some reason the debug info is missing in frame 8, but is present in > surrounding frames 7 and 9. > The might be a bug in makefiles that debug flag isn't passed into > sys/vm/ directory. Well, you can probably find the value of 'm' in a register if you look at the dissassembly around the fault. You can then cast that pointer to the right type and print its contents. -- John Baldwin