Date: Sat, 10 Apr 1999 09:50:12 +0930 From: Greg Lehey <grog@lemis.com> To: Doug White <dwhite@resnet.uoregon.edu>, Davis <dd002f@uhura.cc.rochester.edu> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: fatal trap! How do I escape? Message-ID: <19990410095012.X2142@lemis.com> In-Reply-To: <Pine.BSF.4.03.9904091607090.28562-100000@resnet.uoregon.edu>; from Doug White on Fri, Apr 09, 1999 at 04:09:26PM -0700 References: <Pine.SOL.3.96.990409004410.223A-100000@uhura.cc.rochester.edu> <Pine.BSF.4.03.9904091607090.28562-100000@resnet.uoregon.edu>
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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
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