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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!nntp.coast.net!oleane!in2p3.fr!swidir.switch.ch!01-newsfeed.univie.ac.at!news.iif.hu!isyshu!hole.news.pipex.net!pipex!tank.news.pipex.net!pipex!news.mathworks.com!fu-berlin.de!irz401!orion.sax.de!uriah.heep!news From: j@uriah.heep.sax.de (J Wunsch) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: Help: Page Fault Error Date: 13 Aug 1996 07:34:13 GMT Organization: Private BSD site, Dresden Lines: 26 Message-ID: <4upb5l$399@uriah.heep.sax.de> References: <01bb88a2$79a422a0$47dca1c6@brmt1e.tic.ab.ca> Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) NNTP-Posting-Host: localhost.heep.sax.de Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Newsreader: knews 0.9.6 X-Phone: +49-351-2012 669 X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E "Bill Fahey" <bill@tic.ab.ca> wrote: > /kernel: Fatal trap 12: page fault while in kernel mode > /kernel: fault virtual address = 0x4c10008 > /kernel: fault code = supervisor read, page not present > /kernel: panic.... > The main question I have is whether the above messages indicate a hardware > or software problem? That cannot be decided solely on this information. Btw., the faulted virtual address is of almost no concern at all, the faulting eip value is more interesting, it usually points to the offending function inside the kernel. If you get repeatedly page faults with the same faulting eip, it's more likely to be a software bug. If you get page faults (or sig 10's and sig 11's on user programs -- see /var/log/messages) randomly distributed, it's more likely a hardware problem. -- 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. ;-)