Date: Mon, 28 Jul 1997 10:02:34 -0500 From: john@dexter.starfire.mn.org (John Lind) To: questions@freebsd.org Subject: "Fatal trap 12: page fault while in kernel mode" on one system Message-ID: <Mutt.19970728100234.john@dexter.starfire.mn.org>
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I am administering about a dozen FreeBSD systems at various release
levels from 2.1.5 to 2.2.2. One of these systems is rebooting at
random intervals (averaging about 1/day) without any apparent
relationship to load, task, or activity. The system is:
FreeBSD 2.2.1-RELEASE #0: Fri Apr 11 12:59:46 CDT 1997
root@minuet.starfire.mn.org:/usr/src/sys/compile/MINUET
CPU: Pentium (119.75-MHz 586-class CPU)
Origin = "GenuineIntel" Id = 0x526 Stepping=6
Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8>
real memory = 67108864 (65536K bytes)
Like most of our systems, this one is using a 2940 Ultra PCI SCSI adapter
and an Intel EtherExpress Pro 10/100B PCI ethernet adapter.
The problem manifests as
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0xfa75b36c
fault code = supervisor write, page not present
instruction pointer = 0x8:0xf01b1cba
stack pointer = 0x10:0xefbfff18
frame pointer = 0x10:0xefbfff28
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 = 5408 (atrun)
interrupt mask = net bio
panic: page fault
This system was upgraded from 2.1.7 to 2.2.1.
Should I begin looking at hardware, or reload the poor thing from scratch
and see if that helps?
Thanks for any help and clues.
John Lind, Starfire Consulting Services
E-mail: john@starfire.MN.ORG USnail: PO Box 17247, Mpls MN 55417
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