Date: Sun, 4 Apr 1999 16:17:44 +0930 From: Greg Lehey <grog@lemis.com> To: Stephen McKay <syssgm@detir.qld.gov.au> Cc: FreeBSD current users <FreeBSD-current@FreeBSD.ORG> Subject: Re: Fatal trap 1: privileged instruction fault while in kernel mode Message-ID: <19990404161744.V2142@lemis.com> In-Reply-To: <199904040509.PAA19475@nymph.detir.qld.gov.au>; from Stephen McKay on Sun, Apr 04, 1999 at 03:09:48PM %2B1000 References: <199904031557.BAA03125@nymph.detir.qld.gov.au> <19990404103623.M2142@lemis.com> <199904040509.PAA19475@nymph.detir.qld.gov.au>
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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 <vclean+269>: 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
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