Date: Tue, 3 Sep 2002 10:42:40 +0100 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: "F A.S" <fowas@hotmail.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Kernel Bug Message-ID: <20020903094240.GC20142@happy-idiot-talk.infracaninophi> In-Reply-To: <F48dnmKLjqOnX5fFvYO00023a36@hotmail.com> References: <F48dnmKLjqOnX5fFvYO00023a36@hotmail.com>
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On Tue, Sep 03, 2002 at 10:49:46AM +0300, F A.S wrote: > I sent this email already two days ago, but I got no response. I am really > in desperate need for help, since I have a deadline in 5 days. Hmmm... fatal trap 12 often indicates hardware problems: overheating, bad memory, bad CPU are all fairly common. Try pulling out one SIMM at a time and running for a while on reduced memory, or swap out with known good memory. Check fans are operational and that vents aren't clogged with dust. > I have a fresh FreeBSD installation on a PC with Squid running on top. But, > I've noticed that the system reboots on a fatal trap 12 every 3-4 hours. > Here are the details: > > - FreeBSD 4.0-RELEASE #0 > - Default installation: /usr/src/sys/compile/GENERIC i386 > - PC: Compaq EP Series P450/6.4 ARA 4.0-RELEASE is pretty old and had some nasty bugs. First thing to do is try upgrading to something more up to date, like 4.6.2-RELEASE > The Trap: > /kernel: Fatal trap 12: page fault while in kernel mode > /kernel: fault virtual address = 0x8 > /kernel: fault code = supervisor read, page not present > /kernel: instruction pointer = 0x8:0xc01cf0c4 > /kernel: stack pointer = 0x10:0xc031ac64 > /kernel: frame pointer = 0x10:0xc031ac6c > /kernel: code segment = base 0x0, limit 0xfffff, type 0x1b > /kernel: = DPL 0, pres 1, def32 1, gran 1 > /kernel: processor eflags = interrupt enabled, resume, IOPL = 0 > /kernel: current process = Idle > /kernel: interrupt mask = > /kernel: trap number = 12 > /kernel: panic: page fault > /kernel: > /kernel: syncing disks... 2 > -------------------------------- > Please, if anyone can help in any way, I'll really appreciate it. This output, in and of itself, isn't actually very helpful. Take a look at: http://www.onlamp.com/pub/a/bsd/2002/03/21/Big_Scary_Daemons.html http://www.onlamp.com/pub/a/bsd/2002/04/04/Big_Scary_Daemons.html http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug.html which will show you how to get a lot more detailed information out of your system and hopefully that should be enough to track down the cause of the problem. Cheers, Matthew -- Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks Savill Way Marlow Tel: +44 1628 476614 Bucks., SL7 1TH UK To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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