From owner-freebsd-net@FreeBSD.ORG Sat Jan 15 16:28:52 2011 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6DD05106566C for ; Sat, 15 Jan 2011 16:28:52 +0000 (UTC) (envelope-from egrosbein@rdtc.ru) Received: from eg.sd.rdtc.ru (eg.sd.rdtc.ru [62.231.161.221]) by mx1.freebsd.org (Postfix) with ESMTP id CB6D98FC15 for ; Sat, 15 Jan 2011 16:28:51 +0000 (UTC) Received: from eg.sd.rdtc.ru (localhost [127.0.0.1]) by eg.sd.rdtc.ru (8.14.4/8.14.4) with ESMTP id p0FGSiYk009961; Sat, 15 Jan 2011 22:28:44 +0600 (NOVT) (envelope-from egrosbein@rdtc.ru) Message-ID: <4D31CB37.9090003@rdtc.ru> Date: Sat, 15 Jan 2011 22:28:39 +0600 From: Eugene Grosbein User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; ru-RU; rv:1.9.2.13) Gecko/20110112 Thunderbird/3.1.7 MIME-Version: 1.0 To: John Baldwin References: <4D3011DB.9050900@frasunek.com> <4D30458D.30007@sentex.net> <4D309983.70709@rdtc.ru> <201101141437.55421.jhb@freebsd.org> In-Reply-To: <201101141437.55421.jhb@freebsd.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: freebsd-net@freebsd.org, Przemyslaw Frasunek , Mike Tancsa Subject: Re: panic: bufwrite: buffer is not busy??? X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 15 Jan 2011 16:28:52 -0000 > Assuming your kernel is built with debug symbols (which is the default), one > thing you can do to aid in debugging is this: > > gdb /boot/kernel/kernel > (gdb) l *0xffffffff803cc979 > > Where the 0xfff bit is the part of the 'instruction pointer' value > above after the colon (:) and then send the output of that in your e-mail to > the list. This allows us to the source line at which the fault occurred. I'd glad to, but just found that HDD crash on my buildbox took away obj directory for this NanoBSD... I'll rebuild it again do this next time (it won't take much time, sigh). Btw, I did not know of this way to debug, thanks.