From owner-freebsd-questions Fri Apr 9 17:22:44 1999 Delivered-To: freebsd-questions@freebsd.org Received: from allegro.lemis.com (allegro.lemis.com [192.109.197.134]) by hub.freebsd.org (Postfix) with ESMTP id CC1E514D00 for ; Fri, 9 Apr 1999 17:22:33 -0700 (PDT) (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 JAA29762; Sat, 10 Apr 1999 09:50:20 +0930 (CST) Received: (from grog@localhost) by freebie.lemis.com (8.9.3/8.9.0) id JAA34872; Sat, 10 Apr 1999 09:50:13 +0930 (CST) Message-ID: <19990410095012.X2142@lemis.com> Date: Sat, 10 Apr 1999 09:50:12 +0930 From: Greg Lehey To: Doug White , Davis Cc: freebsd-questions@FreeBSD.ORG Subject: Re: fatal trap! How do I escape? References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.93.2i In-Reply-To: ; from Doug White on Fri, Apr 09, 1999 at 04:09:26PM -0700 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-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Friday, 9 April 1999 at 16:09:26 -0700, Doug White wrote: > On Fri, 9 Apr 1999, Davis wrote: > >> That did it; pcm0 was detected (as pcm1, of course). >> BUT - several lines later (after the kernel loaded ep0, then npx0), I >> received the following message: >> >> Fatal trap 12: page fault while in kernel mode >> fault virtual address = 0x4 >> fault code = supervisor read, page not present >> instruction pointer = 0x8:0xf01dc7a2 >> stack pointer = 0x10:0xf02a6f88 >> frame pointer = 0x10:0xf02a6f88 >> code segment = base 0x0, limit 0xfffff, type 0x16 >> = DPL 0, pres 1, def32 1, gran 1 >> processor eflags = interrupt enabled, resume, IOPL=0 >> current process = 0 () >> interrupt mask = >> trap number = 12 >> panic: page fault >> >> >> This is a 100% reproducible error. Could someone help me out with this? >> Also, could anyone tell me what I need to do to get /kernel.config to be >> loaded properly at startup (though that is undesirable at the moment). >> Thanks in advance to everyone. > > I've had odd boot-time crashes like this. Based on the fault address I'd > say it's a corrupted pointer. That's pretty good. How do you deduce that from the fault address? That's the usual reason for a "page fault", of course. 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-questions" in the body of the message