From owner-freebsd-virtualization@FreeBSD.ORG Sat Nov 15 18:15:25 2014 Return-Path: Delivered-To: freebsd-virtualization@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id E4F6F67F; Sat, 15 Nov 2014 18:15:25 +0000 (UTC) Received: from h2.funkthat.com (gate2.funkthat.com [208.87.223.18]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "funkthat.com", Issuer "funkthat.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id A2B1467C; Sat, 15 Nov 2014 18:15:25 +0000 (UTC) Received: from h2.funkthat.com (localhost [127.0.0.1]) by h2.funkthat.com (8.14.3/8.14.3) with ESMTP id sAFIFNgk095030 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sat, 15 Nov 2014 10:15:23 -0800 (PST) (envelope-from jmg@h2.funkthat.com) Received: (from jmg@localhost) by h2.funkthat.com (8.14.3/8.14.3/Submit) id sAFIFNtO095029; Sat, 15 Nov 2014 10:15:23 -0800 (PST) (envelope-from jmg) Date: Sat, 15 Nov 2014 10:15:23 -0800 From: John-Mark Gurney To: Julian Elischer Subject: Re: bhyve remote kgdb does not support kernel modules... Message-ID: <20141115181523.GA24601@funkthat.com> References: <20141115093713.GY24601@funkthat.com> <20141115094340.GZ24601@funkthat.com> <54677DFC.70708@freebsd.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <54677DFC.70708@freebsd.org> User-Agent: Mutt/1.4.2.3i X-Operating-System: FreeBSD 7.2-RELEASE i386 X-PGP-Fingerprint: 54BA 873B 6515 3F10 9E88 9322 9CB1 8F74 6D3F A396 X-Files: The truth is out there X-URL: http://resnet.uoregon.edu/~gurney_j/ X-Resume: http://resnet.uoregon.edu/~gurney_j/resume.html X-TipJar: bitcoin:13Qmb6AeTgQecazTWph4XasEsP7nGRbAPE X-to-the-FBI-CIA-and-NSA: HI! HOW YA DOIN? can i haz chizburger? X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.2 (h2.funkthat.com [127.0.0.1]); Sat, 15 Nov 2014 10:15:24 -0800 (PST) Cc: freebsd-virtualization@freebsd.org X-BeenThere: freebsd-virtualization@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: "Discussion of various virtualization techniques FreeBSD supports." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 15 Nov 2014 18:15:26 -0000 Julian Elischer wrote this message on Sun, Nov 16, 2014 at 00:23 +0800: > On 11/15/14, 5:43 PM, John-Mark Gurney wrote: > >John-Mark Gurney wrote this message on Sat, Nov 15, 2014 at 01:37 -0800: > >>So, I got remote kgdb working w/ bhyve, but kernel modules aren't > >>loaded... > >> > >>I'm getting: > >>(kgdb) bt > >>#0 kdb_enter (why=0xffffffff8102ee88 "panic", msg=) > >> at ../../../kern/subr_kdb.c:444 > >>#1 0xffffffff8094aa79 in vpanic (fmt=, > >> ap=) at ../../../kern/kern_shutdown.c:739 > >>#2 0xffffffff8094a8c9 in kassert_panic (fmt=) > >> at ../../../kern/kern_shutdown.c:634 > >>#3 0xffffffff8093583c in __mtx_lock_flags (c=0xfffff80002919720, opts=0, > >> file=0xffffffff81c3f0fa > >> "/usr/home/jmg/freebsd.p4/opencrypto/sys/modules/aesni/../../crypto/aesni/aesni.c", line=442) at ../../../kern/kern_mutex.c:217 > >>#4 0xffffffff81c3e3a7 in ?? () > >>#5 0xfffff80002a474a0 in ?? () > >>#6 0xfffff80002919720 in ?? () > >> > >>Where those should be in the aesni.ko module... If I run kgdb on a > >>local machine, it properly finds the kernel modules... Any hits on > >>how to fix this? > > works for me.. > the modules I'm debugging are not compiled in. > you have to have the modules in the standard place ONE THE GDB HOST. > I make a chroot with an image of the machine being debugged, PLUS the > sources. > and then run kgdb from inside that chroot. Ahh, that's right, kgdb isn't smart enough to know when you've pointed it to the kernel build dir whereh the modules are... :( Thanks for the reminder... -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."