From owner-freebsd-hackers@FreeBSD.ORG Sat Sep 12 13:54:00 2009 Return-Path: Delivered-To: hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id EC0A3106568D for ; Sat, 12 Sep 2009 13:54:00 +0000 (UTC) (envelope-from des@des.no) Received: from tim.des.no (tim.des.no [194.63.250.121]) by mx1.freebsd.org (Postfix) with ESMTP id B277B8FC0C for ; Sat, 12 Sep 2009 13:54:00 +0000 (UTC) Received: from ds4.des.no (des.no [84.49.246.2]) by smtp.des.no (Postfix) with ESMTP id BFC2E6D418 for ; Sat, 12 Sep 2009 13:53:59 +0000 (UTC) Received: by ds4.des.no (Postfix, from userid 1001) id 96406844A5; Sat, 12 Sep 2009 15:53:59 +0200 (CEST) From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= To: hackers@freebsd.org Date: Sat, 12 Sep 2009 15:53:59 +0200 Message-ID: <86fxasl154.fsf@ds4.des.no> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.92 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Cc: Subject: DDB capture buffer X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 12 Sep 2009 13:54:01 -0000 The default maximum size of the DDB capture buffer is 48 kB. This is ridiculously low; it's not even nearly enough to capture the output from the first example in textdump(4): script kdb.enter.panic=3Dtextdump set; capture on; show allpcpu; bt; ps; alltrace; show alllocks; call doadump; reset Would anyone object to increasing it to 1 MB? DDB is opt-in, so it will only affect people who compile it into their kernel (or -CURRENT users who don't compile it out; they have it coming). DES --=20 Dag-Erling Sm=C3=B8rgrav - des@des.no