From owner-freebsd-current Sat Jun 22 07:38:05 1996 Return-Path: owner-current Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id HAA05515 for current-outgoing; Sat, 22 Jun 1996 07:38:05 -0700 (PDT) Received: from post.io.org (post.io.org [198.133.36.6]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id HAA05507 for ; Sat, 22 Jun 1996 07:38:01 -0700 (PDT) Received: from zap.io.org (taob@zap.io.org [198.133.36.81]) by post.io.org (8.7.5/8.7.3) with SMTP id KAA25062 for ; Sat, 22 Jun 1996 10:35:12 -0400 (EDT) Date: Sat, 22 Jun 1996 10:36:11 -0400 (EDT) From: Brian Tao To: FREEBSD-CURRENT-L Subject: Panic in _pmap_clear_modify Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-current@freebsd.org X-Loop: FreeBSD.org Precedence: bulk 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"