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Newsgroups: comp.unix.bsd.freebsd.misc Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!simtel!pravda.aa.msen.com!spool.mu.edu!howland.reston.ans.net!usenet.ins.cwru.edu!neoucom.edu!aldhfn!phoenix!ciaran From: ciaran@aldhfn.org (ciaran) Subject: Re: 950726 Page Fault in Kernel X-Newsreader: TIN [version 1.2 PL3] Sender: usenet@kraken.aldhfn.org (Fool) Nntp-Posting-Host: phoenix.aldhfn.org Organization: Auldhaefen Associates - Internet access - 216-745-9380 (voice) Message-ID: <DE7JLz.918@kraken.aldhfn.org> References: <SAKAI.95Aug22002915@csle59.csl.cl.nec.co.jp> <41rs0h$poa@bonnie.tcd-dresden.de> Date: Fri, 1 Sep 1995 03:41:58 GMT Lines: 38 J Wunsch (j@bonnie.heep.sax.de) wrote: : Junji SAKAI <sakai@csle59.csl.cl.nec.co.jp> wrote: : > Fatal trap 12: page fault while in kernel mode : > fault virtual address = 0xf53cb708 (*) : > fault code = supervisor read, page not present : > instruction pointer = 0x8:0xf0121378 (*) : > code segment = base 0x0, limit 0xfffff, type 0x1b : > = DPL 0, pres 1, def32 1, gran 1 : > processor eflags = interrupt enabled, resume, IOPL=0 : > current process = 1189 (cc1) (*) : > interrupt mask = bio (*) : > panic: page fault : > syncing disks... 22 22 22 22 ...... give up : Normally, i'd say extract the name list and look for the symbols : around the faulting instruction pointer, but... : >Items with asterisk(*) vary case by case, but others are the same : >in all case. This panic happens almost every time I compile something. : >I don't know why these page fault traps occur. : ...this rather smells like a hardware problem. Try relaxing the : conditions for your RAM/cache (or EDO) RAM etc., or try to make the : cache write-through. There are ASUS boards known to have a broken : chipset, but i've forgot which one. : I assume every memory-expensive program would cause this, the compiler : is only just the best known expample. Try troffing a large .ms file, : i guess you'll experience the same. I get the same error running the 2.0 kernel every time I enable quotas. Leave the quota off and everything runs fine. Turn them and the first person to login triggers the page fault and the system reboots. I'm currently trying to get the 950726 kernel to compile in the hopes that it will solve the problem but it looks like it may not :-/. Skip