Date: Thu, 26 Dec 1996 17:56:42 -0600 (CST) From: Rory Imua Lampert <rory@uic.edu> To: bugs@freebsd.org Subject: AMD 120 page fault during boot up Message-ID: <Pine.SOL.3.93.961226174115.23823B-100000@icarus.cc.uic.edu>
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Hello, I just recently purchased a AMD 486dx4/120 CPU. I have a 486/PCI motherboard with a UMC chipset. I have 32MB of EDO ram. The system works perfectly fine with the original Intel 486dx2/66 CPU. I installtg the AMD chip, set the jumpers for the correct voltage (3.3v) and CPU type (AMD dx4). When I boot my machine, it goes through the device probe, then shortly after init starts to run /etc/rc, gives me this error: Fatal trap 12: page fault while in kernel mode fault virtual address = 0xffbfed4 fault code = Supervisor read, page not present instruction pointer = 0x8:0xf0190146 code segment = base 0x0, lim, 4 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resum, IOPL=0 current process = 7 (fsck) interrupt mask = panic: page fault Someone told me to play with my cache settings in the bios, I've tried every combination upto disabling the internal and external cache. When I do this, the panic happens anywhere between init and say...sendmail starting up. I also duel boot to NT 4.0 and have had strange dealings with that...Photoshop works, but install Perfect Office dies with a divide by 0 error. Does anyone have any clue as to what I should try next? Thanks, Rory Imua Lampert
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