From owner-freebsd-current Sat Apr 3 22:49:58 1999 Delivered-To: freebsd-current@freebsd.org Received: from allegro.lemis.com (allegro.lemis.com [192.109.197.134]) by hub.freebsd.org (Postfix) with ESMTP id ABCF415024 for ; Sat, 3 Apr 1999 22:49:44 -0800 (PST) (envelope-from grog@freebie.lemis.com) Received: from freebie.lemis.com (freebie.lemis.com [192.109.197.137]) by allegro.lemis.com (8.9.1/8.9.0) with ESMTP id QAA26818; Sun, 4 Apr 1999 16:17:47 +0930 (CST) Received: (from grog@localhost) by freebie.lemis.com (8.9.3/8.9.0) id QAA04710; Sun, 4 Apr 1999 16:17:45 +0930 (CST) Message-ID: <19990404161744.V2142@lemis.com> Date: Sun, 4 Apr 1999 16:17:44 +0930 From: Greg Lehey To: Stephen McKay Cc: FreeBSD current users Subject: Re: Fatal trap 1: privileged instruction fault while in kernel mode References: <199904031557.BAA03125@nymph.detir.qld.gov.au> <19990404103623.M2142@lemis.com> <199904040509.PAA19475@nymph.detir.qld.gov.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.93.2i In-Reply-To: <199904040509.PAA19475@nymph.detir.qld.gov.au>; from Stephen McKay on Sun, Apr 04, 1999 at 03:09:48PM +1000 WWW-Home-Page: http://www.lemis.com/~grog Organization: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-41-739-7062 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Sunday, 4 April 1999 at 15:09:48 +1000, Stephen McKay wrote: > On Sunday, 4th April 1999, Greg Lehey wrote: > >> On Sunday, 4 April 1999 at 1:57:50 +1000, Stephen McKay wrote: >>> I've just got what seems an unlikely panic. How could I get a privileged >>> instruction fault while in kernel mode? >> >> Sounds like a hardware (processor) problem to me. What was the >> instruction it was trying to execute? > > You were distracted by the large amount of extraneous fluff. ;-) Oops. > I wrote: > >> The fatal instruction is: >> 0xc016abc9 : movl $0xc023355c,0xffffffdc(%ebp) >> which looks pretty ordinary. Certainly not a privileged instruction. If the processor gets a privileged instruction fault on this one, I would say it's wrong. > What sort of hardware error happens once in 3 months? This one. > I often hammer it. It has done long tape operations before too. I > don't want to believe it is hardware yet. I'd say the truth is staring you in the face. Don't come too close, it might grab you. > I was hoping somebody knew the precise conditions that could produce > this trap. I'd guess that you'll never see exactly this trap again. But I do recall seeing some other similar ones. > I think I'll have to cruise the Intel web site and download some big > pdfs. Well, at least you'll learn something, but I don't expect you to find the solution to your problem there. > Could it be heat? If it's hot, yes. Greg -- When replying to this message, please copy the original recipients. For more information, see http://www.lemis.com/questions.html See complete headers for address, home page and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message