Date: Tue, 23 Dec 1997 21:42:29 +0100 (MET) From: j@uriah.heep.sax.de (J Wunsch) To: freebsd-hackers@FreeBSD.ORG Cc: "James E. Housley" <housley@pr-comm.com> Subject: Re: Crash installing over a lp network Message-ID: <199712232042.VAA13954@uriah.heep.sax.de> References: <349EBC3F.8F03755E@pr-comm.com>
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"James E. Housley" <housley@pr-comm.com> wrote: > Some time after Dec 4 I started geting page fauls when installing a new > system to my laptop via the lp interface. It usually makes it through > include but not always. The last one failed the AM with src-2.2.0548 > patches. This is the screen: > > fault trap 12: page fault while in kernel mode > fault virtual address = 0x10 > fault code = supervisor read, page not present > instruction pointer = 0x8:0xf012c325 > What is my next step? Well, posting the entire config file wasn't that useful (in particular posting all the commented out lines). What's really important is: nm /kernel | sort | more -e ....and lookup the symbol that's next before address 0xf012c325. This tells you the function it was crashing in. Fault VA 0x10 looks like dereferencing a structure member where the struct pointer is a null pointer. Please, see also the handbook's section about kernel debugging. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)
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