From owner-freebsd-amd64@FreeBSD.ORG Fri Nov 1 16:48:56 2013 Return-Path: Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id EFD7198F; Fri, 1 Nov 2013 16:48:56 +0000 (UTC) (envelope-from tg@gmplib.org) Received: from shell.gmplib.org (gmplib-02.nada.kth.se [130.237.222.242]) by mx1.freebsd.org (Postfix) with ESMTP id B2A5529AA; Fri, 1 Nov 2013 16:48:55 +0000 (UTC) Received: by shell.gmplib.org (Postfix, from userid 1001) id 69C1F2434B; Fri, 1 Nov 2013 17:48:54 +0100 (CET) To: John Baldwin Subject: Re: amd64/183397: Kernel panic at first incoming ssh References: <201310312350.r9VNo1gE056086@freefall.freebsd.org> <201311010921.57769.jhb@freebsd.org> From: Torbjorn Granlund Sender: tg@gmplib.org Date: Fri, 01 Nov 2013 17:48:54 +0100 In-Reply-To: <201311010921.57769.jhb@freebsd.org> (John Baldwin's message of "Fri\, 1 Nov 2013 09\:21\:57 -0400") Message-ID: <86y558ysnd.fsf@shell.gmplib.org> User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.3 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Mailman-Approved-At: Fri, 01 Nov 2013 16:56:54 +0000 Cc: freebsd-amd64@freebsd.org X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Nov 2013 16:48:57 -0000 John Baldwin writes: Can you fire up gdb against your 64-bit kernel file (e.g. gdb=20 /boot/kernel/kernel) and do 'l *xn_intr+0x7d'? I'm afraid my ignorance of how to debug the kernel will show itself here. I did this: 1. booted the system. 2. logged in as root on the (vnc) console. 3. issued the command "gdb /boot/kernel/kernel" 4. Issued the above command and got this printout: (gdb) l *xn_intr+0x7d 0xffffffff8079fb7d is in xn_intr (atomic.h:161). 156 atomic.h: No such file ot directory. in atomic.h (gdb) This looks somewhat unsatisfactory to me... If it would be beneficial to the freebsd project, I could bring this NetBSD+Xen Haswell system to a public IP address and set up a temp account. I'd then would like a public ssh key which I can download from *.freebsd.org. But if that is not convenient for you, I'll certainly follow through with any tests you will ask me to perform. --=20 Torbj=C3=B6rn