Date: Sat, 22 Jun 1996 10:36:11 -0400 (EDT) From: Brian Tao <taob@io.org> To: FREEBSD-CURRENT-L <freebsd-current@freebsd.org> Subject: Panic in _pmap_clear_modify Message-ID: <Pine.NEB.3.92.960622103146.29067C-100000@zap.io.org>
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My workstation crashed out of the blue with this one a few days
ago. I had just logged in and was reattaching my screen session when
it happened. Didn't notice anything else strange at all. Might this
be fixed in the post-2.2SNAP VM work?
> Fatal trap 12: page fault while in kernel mode
> fault virtual address = 0x0
> fault code = supervisor read, page not present
> instruction pointer = 0x8:0xf01b5996
> stack pointer = 0x10:0xf01d8e9c
> frame pointer = 0x10:0xf01d8ea8
> 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 = Idle
> interrupt mask = net tty bio
> panic: page fault
>
> syncing disks... 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 giving up
> Automatic reboot in 15 seconds - press a key on the console to abort
> Rebooting...
> FreeBSD 2.2-960501-SNAP #1: Sat May 11 15:29:10 EDT 1996
> taob@cabal.io.org:/usr/local/src/2.2-960501-SNAP/sys/compile/CABAL
# nm -a /kernel | sort | fgrep -C f01b59
f01b5714 T _pmap_is_modified
f01b5890 T _pmap_clear_modify
f01b59cc T _pmap_clear_reference
f01b5b08 t _i386_protection_init
f01b5b8c T _pmap_mapdev
--
Brian Tao (BT300, taob@io.org, taob@ican.net)
Systems and Network Administrator, Internet Canada Corp.
"Though this be madness, yet there is method in't"
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