From owner-freebsd-current Tue Nov 28 8:18: 0 2000 Delivered-To: freebsd-current@freebsd.org Received: from thelab.hub.org (CDR22-173.accesscable.net [24.138.22.173]) by hub.freebsd.org (Postfix) with ESMTP id 3781A37B400 for ; Tue, 28 Nov 2000 08:17:58 -0800 (PST) Received: from localhost (scrappy@localhost) by thelab.hub.org (8.11.1/8.11.1) with ESMTP id eASGHKt10392; Tue, 28 Nov 2000 12:17:20 -0400 (AST) (envelope-from scrappy@hub.org) X-Authentication-Warning: thelab.hub.org: scrappy owned process doing -bs Date: Tue, 28 Nov 2000 12:17:14 -0400 (AST) From: The Hermit Hacker To: Alfred Perlstein Cc: freebsd-current@FreeBSD.ORG Subject: Re: system hangs ... not sure how to debug ... In-Reply-To: <20001127215621.T8051@fw.wintelcom.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Mon, 27 Nov 2000, Alfred Perlstein wrote: > * The Hermit Hacker [001127 18:12] wrote: > > > > Morning all ... > > > > Every since the SMPng code went into -current way back when, I've > > been experiencing hangs ... and am not quite sure how to debug this. I'm > > in X all the time, so breaking to the debugger to see where its hanging > > isn't possible ... > > > > Some kernels its relatively easy to trigger, some kernels are > > harder to trigger, but they all do at some point in time ... > > > > Can someone suggestion a method of being able to debug this? > > Serial console, add BREAK_TO_DEBUGGER (sp?) to your kernel config and > hook your laptop up to it. actually, got everything compiled nicely, rebooted and figured I'd pound the system the best way I know how: while(1) make -j16 world end system hung solid ... ctl-alt-esc won't even get me to DDB ... this kernel seems to do it faster then the previous one ... To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message