From owner-freebsd-stable@freebsd.org Wed Nov 7 00:48:32 2018 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 2EF811107258 for ; Wed, 7 Nov 2018 00:48:32 +0000 (UTC) (envelope-from rainer@ultra-secure.de) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id A01C6787CC for ; Wed, 7 Nov 2018 00:48:31 +0000 (UTC) (envelope-from rainer@ultra-secure.de) Received: by mailman.ysv.freebsd.org (Postfix) id 64A331107257; Wed, 7 Nov 2018 00:48:31 +0000 (UTC) Delivered-To: stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 42C401107256 for ; Wed, 7 Nov 2018 00:48:31 +0000 (UTC) (envelope-from rainer@ultra-secure.de) Received: from connect.ultra-secure.de (connect.ultra-secure.de [88.198.71.201]) by mx1.freebsd.org (Postfix) with ESMTP id A1758787C8 for ; Wed, 7 Nov 2018 00:48:30 +0000 (UTC) (envelope-from rainer@ultra-secure.de) Received: (Haraka outbound); Wed, 07 Nov 2018 01:46:31 +0100 Authentication-Results: connect.ultra-secure.de; iprev=pass; auth=pass (plain); spf=none smtp.mailfrom=ultra-secure.de Received-SPF: None (connect.ultra-secure.de: domain of ultra-secure.de does not designate 217.71.83.52 as permitted sender) receiver=connect.ultra-secure.de; identity=mailfrom; client-ip=217.71.83.52; helo=[192.168.1.201]; envelope-from= Received: from [192.168.1.201] (217-071-083-052.ip-tech.ch [217.71.83.52]) by connect.ultra-secure.de (Haraka/2.6.2-toaster) with ESMTPSA id 8C628F58-995A-4FAE-9E20-DA428FAE6D43.1 envelope-from (authenticated bits=0) (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 verify=NO); Wed, 07 Nov 2018 01:46:22 +0100 From: Rainer Duffner Message-Id: <30B2CF5C-51A6-457E-9192-DC6C4C62A769@ultra-secure.de> Mime-Version: 1.0 (Mac OS X Mail 11.5 \(3445.9.1\)) Subject: Re: How do you boot the debug kernel installed from kernel-dbg.txz? Date: Wed, 7 Nov 2018 01:47:59 +0100 In-Reply-To: <9f460694-5ce6-132e-e0cc-6b7d01e36f2d@nomadlogic.org> Cc: stable@freebsd.org To: Pete Wright References: <9f460694-5ce6-132e-e0cc-6b7d01e36f2d@nomadlogic.org> X-Mailer: Apple Mail (2.3445.9.1) X-Haraka-GeoIP: EU, CH, 451km X-Haraka-ASN: 24951 X-Haraka-GeoIP-Received: X-Haraka-ASN: 24951 217.71.80.0/20 X-Haraka-ASN-CYMRU: asn=24951 net=217.71.80.0/20 country=CH assignor=ripencc date=2003-08-07 X-Haraka-FCrDNS: 217-071-083-052.ip-tech.ch X-Haraka-p0f: os="Mac OS X " link_type="DSL" distance=15 total_conn=2 shared_ip=N X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on spamassassin X-Spam-Level: X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00, HTML_MESSAGE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.1 X-Haraka-Karma: score: 6, good: 7453, bad: 6, connections: 8113, history: 7447, asn_score: 108, asn_connections: 112, asn_good: 109, asn_bad: 1, pass:asn, relaying X-Rspamd-Queue-Id: A01C6787CC X-Spamd-Result: default: False [-2.57 / 200.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; FORGED_RECIPIENTS_FORWARDING(0.00)[]; FORWARDED(0.00)[stable@mailman.ysv.freebsd.org]; TO_DN_SOME(0.00)[]; MV_CASE(0.50)[]; URI_COUNT_ODD(1.00)[3]; RCVD_IN_DNSWL_MED(-0.20)[5.0.0.0.0.5.0.0.0.0.0.0.0.0.0.0.a.6.0.2.4.5.2.2.0.0.9.1.1.0.0.2.list.dnswl.org : 127.0.9.2]; RCPT_COUNT_TWO(0.00)[2]; MX_GOOD(-0.01)[cached: connect.ultra-secure.de]; NEURAL_HAM_SHORT(-0.42)[-0.419,0]; RCVD_NO_TLS_LAST(0.10)[]; FROM_EQ_ENVFROM(0.00)[]; IP_SCORE(-3.46)[ip: (-9.64), ipnet: 2001:1900:2254::/48(-4.34), asn: 10310(-3.25), country: US(-0.08)]; R_DKIM_NA(0.00)[]; FORGED_RECIPIENTS(0.00)[stable@freebsd.org ..,freebsd-stable@freebsd.org]; SUBJECT_ENDS_QUESTION(1.00)[]; MID_RHS_MATCH_FROM(0.00)[]; ASN(0.00)[asn:10310, ipnet:2001:1900:2254::/48, country:US]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.98)[-0.979,0]; RCVD_COUNT_FIVE(0.00)[6]; FROM_HAS_DN(0.00)[]; NEURAL_HAM_LONG(-1.00)[-0.998,0]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; DMARC_NA(0.00)[ultra-secure.de]; AUTH_NA(1.00)[]; R_SPF_NA(0.00)[] X-Rspamd-Server: mx1.freebsd.org Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Nov 2018 00:48:32 -0000 > Am 07.11.2018 um 01:40 schrieb Pete Wright : >=20 > I may be mistaken, but I don't think you actually need to boot the = debug-kernel and modules (in fact I don't think you can), rather those = files are intended for being read by kgdb while debugging a core that is = generated by savecore(8) so that you have access to full symbol table = etc. this page section in the dev handbook debugging kernel core dumps: >=20 > = https://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kern= eldebug.html = >=20 > hope this helps, >=20 > -pete Yes, you are right. However obvious it may seem, it isn=E2=80=99t for somebody who=E2=80=99s = never really done that=E2=80=A6 I asked the same question in my PR and got an answer immediately - = didn=E2=80=99t expect that to go that fast=E2=80=A6