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Date:      Tue, 18 May 1999 12:30:03 -0700 (PDT)
From:      Seth <seth@freebie.dp.ny.frb.org>
To:        freebsd-bugs@FreeBSD.org
Subject:   Re: kern/10752: Kernel panic (?) trap 12: page fault while in kernel mode
Message-ID:  <199905181930.MAA44200@freefall.freebsd.org>

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The following reply was made to PR kern/10752; it has been noted by GNATS.

From: Seth <seth@freebie.dp.ny.frb.org>
To: Steve Sapovits <steve.sapovits@platinum.com>
Cc: freebsd-gnats-submit@freebsd.org
Subject: Re: kern/10752: Kernel panic (?) trap 12: page fault while in kernel
 mode
Date: Tue, 18 May 1999 15:24:30 -0400 (EDT)

 Just FYI, I haven't had a panic since I moved from -RELEASE to -STABLE
 (about a month or so ago?)... the -STABLE I was running was an earlier 3.1
 variety.  I just moved to 3.2-STABLE yesterday and, despite a problem with
 the adaptec 7890 (since resolved by v.1.5.2.5 of ahc_pci.c), everything
 went smoothly.
 
 If you're still on 3.1-RELEASE, I suggest trying -STABLE... it worked for
 me.
 
 SB
 
 On Tue, 18 May 1999, Steve Sapovits wrote:
 
 > 
 > I'm also getting what appears to be a similar or identical panic.
 > I recently upgraded to 3.1 from 2.2.5.  The panic started after a
 > few days and has recurred consistently every few days, sometimes
 > (infrequently) more than once per day.  I run 3.1 on an old 486 I
 > use almost entirely as a gateway machine to access the internet and
 > my company's network.  I also run an X Window manager (fvwm) off that
 > box most of the time.
 > 
 > Fault trap 12: fault while in kernel mode
 > 
 > fault virtual address              = 0xb8
 > fault code                         = supervisor read, page not present
 > instruction pointer                = 0x8:0xf0154817
 > stack pointer                      = 0x10:0xf028d9ac
 > frame pointer                      = 0x10:0xf028d9c0
 > code segment                       = base 0x0, limit 0xfffff, type 0x1b
 >                                    = DPL 0, pres1, def321, gran 1
 > processor flags                    = interrupt enabled, resume, IOPL = 0
 > current process                    = Idle
 > interrupt mask                     = net tty bio cam
 > trap number                        = 12
 > panic: page fault
 > 
 > 
 > May 18 09:26:49 lowly /kernel: Copyright (c) 1992-1999 FreeBSD Inc.
 > May 18 09:26:49 lowly /kernel: Copyright (c) 1982, 1986, 1989, 1991, 1993
 > May 18 09:26:49 lowly /kernel: The Regents of the University of California. Allrights reserved.
 > May 18 09:26:49 lowly /kernel: FreeBSD 3.1-RELEASE #4: Sun Apr 18 08:01:58 EDT 1999
 > May 18 09:26:49 lowly /kernel: root@frumble.busytown.org:/usr/src/sys/compile/lowly
 > May 18 09:26:49 lowly /kernel: Timecounter "i8254"  frequency 1193182 Hz
 > May 18 09:26:49 lowly /kernel: CPU: i486DX (486-class CPU)
 > May 18 09:26:49 lowly /kernel: real memory  = 16777216 (16384K bytes)
 > May 18 09:26:49 lowly /kernel: avail memory = 13520896 (13204K bytes)
 > May 18 09:26:50 lowly /kernel: Preloaded elf kernel "kernel" at 0xf030d000.
 > May 18 09:26:50 lowly /kernel: Probing for devices on the ISA bus:
 > May 18 09:26:50 lowly /kernel: sc0 on isa
 > May 18 09:26:50 lowly /kernel: sc0: VGA color <16 virtual consoles, flags=0x0>
 > May 18 09:26:50 lowly /kernel: ed0 at 0x300-0x31f irq 9 on isa
 > May 18 09:26:50 lowly /kernel: ed0: address 00:c0:93:00:b1:72, type NE2000 (16 bit)
 > May 18 09:26:50 lowly /kernel: atkbdc0 at 0x60-0x6f on motherboard
 > May 18 09:26:50 lowly /kernel: atkbd0 irq 1 on isa
 > May 18 09:26:51 lowly /kernel: sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa
 > May 18 09:26:51 lowly /kernel: sio0: type 16450
 > May 18 09:26:51 lowly /kernel: sio2 at 0x3e8-0x3ef irq 5 on isa
 > May 18 09:26:51 lowly /kernel: sio2: type 16550A
 > May 18 09:26:51 lowly /kernel: fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
 > May 18 09:26:51 lowly /kernel: fd0: 1.44MB 3.5in
 > May 18 09:26:51 lowly /kernel: fd1: 1.2MB 5.25in
 > May 18 09:26:51 lowly /kernel: wdc0 at 0x1f0-0x1f7 irq 14 on isa
 > May 18 09:26:51 lowly /kernel: wdc0: unit 0 (wd0): <Conner Peripherals 85MB - CP30084E>
 > May 18 09:26:51 lowly /kernel: wd0: 81MB (166152 sectors), 903 cyls, 4 heads, 46 S/T, 512
 > May 18 09:26:51 lowly /kernel: B/S
 > May 18 09:26:51 lowly /kernel: wdc0: unit 1 (wd1): <Conner Peripherals 210MB - CP3201>
 > May 18 09:26:52 lowly /kernel: wd1: 203MB (415872 sectors), 684 cyls, 16 heads,38 S/T, 512 B/S
 > May 18 09:26:52 lowly /kernel: ppc0 at 0x378 irq 7 on isa
 > May 18 09:26:52 lowly /kernel: ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
 > May 18 09:26:52 lowly /kernel: nlpt0: <generic printer> on ppbus 0
 > May 18 09:26:52 lowly /kernel: nlpt0: Interrupt-driven port
 > May 18 09:26:52 lowly /kernel: ppi0: <generic parallel i/o> on ppbus 0
 > May 18 09:26:52 lowly /kernel: plip0: <PLIP network interface> on ppbus 0
 > May 18 09:26:52 lowly /kernel: vga0 at 0x3b0-0x3df maddr 0xa0000 msize 131072 on isa
 > May 18 09:26:52 lowly /kernel: npx0 on motherboard
 > May 18 09:26:52 lowly /kernel: npx0: INT 16 interface
 > May 18 09:26:52 lowly /kernel: IP packet filtering initialized, divert enabled,rule-based forwarding disabled, default to accept, logging disabled
 > May 18 09:26:53 lowly /kernel: changing root device to wd0s1a
 > 
 > -- 
 > Steve Sapovits  |  PLATINUM technology  |  steve.sapovits@platinum.com
 > 
 
 


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