From owner-freebsd-current Fri Nov 17 10:26:23 2000 Delivered-To: freebsd-current@freebsd.org Received: from rover.village.org (rover.village.org [204.144.255.66]) by hub.freebsd.org (Postfix) with ESMTP id 0236E37B479 for ; Fri, 17 Nov 2000 10:26:13 -0800 (PST) Received: from harmony.village.org (harmony.village.org [10.0.0.6]) by rover.village.org (8.11.0/8.11.0) with ESMTP id eAHIQ6Q06264; Fri, 17 Nov 2000 11:26:07 -0700 (MST) (envelope-from imp@harmony.village.org) Received: from harmony.village.org (localhost.village.org [127.0.0.1]) by harmony.village.org (8.9.3/8.8.3) with ESMTP id LAA75925; Fri, 17 Nov 2000 11:26:02 -0700 (MST) Message-Id: <200011171826.LAA75925@harmony.village.org> To: Sheldon Hearn Subject: Re: CURRENT is freezing again ... Cc: Alfred Perlstein , "Steven E. Ames" , Soren Schmidt , Boris Popov , Valentin Chopov , current@FreeBSD.ORG In-reply-to: Your message of "Fri, 17 Nov 2000 13:48:35 +0200." <2967.974461715@axl.fw.uunet.co.za> References: <2967.974461715@axl.fw.uunet.co.za> Date: Fri, 17 Nov 2000 11:26:02 -0700 From: Warner Losh Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In message <2967.974461715@axl.fw.uunet.co.za> Sheldon Hearn writes: : The problem with a hard lock-up out of which you can't escape into the : debugger is that it makes meaningful bug reports impossible. My non-SMP : workstation has exhibited apparently arbitrary lock-ups since the advent : of SMPng. You can also short IOCHK to ground to get an NMI which kicks you into the debugger, even in an interrupt context. I have a card I built from an old multi-function card to do this. I think it is A1 and A2, but I don't have my ISA bus spec handy. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message