From owner-freebsd-current Fri Nov 17 10:34:12 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 5F50E37B4C5 for ; Fri, 17 Nov 2000 10:34:08 -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 eAHIY6Q06373; Fri, 17 Nov 2000 11:34:07 -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 LAA76119; Fri, 17 Nov 2000 11:34:06 -0700 (MST) Message-Id: <200011171834.LAA76119@harmony.village.org> To: Poul-Henning Kamp Subject: Re: CURRENT is freezing again ... Cc: Sheldon Hearn , Alfred Perlstein , "Steven E. Ames" , Soren Schmidt , Boris Popov , Valentin Chopov , current@FreeBSD.ORG In-reply-to: Your message of "Fri, 17 Nov 2000 19:51:07 +0100." <25636.974487067@critter> References: <25636.974487067@critter> Date: Fri, 17 Nov 2000 11:34:06 -0700 From: Warner Losh Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In message <25636.974487067@critter> Poul-Henning Kamp writes: : In message <200011171826.LAA75925@harmony.village.org>, Warner Losh writes: : >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. : : Bad news for you warner: On a too large sample of my newer : motherboards this doesn't work anymore :-( There's also a pci signal that you can either pull up or pull down that's supposed to give you the same results. I've never really needed to know it. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message