From owner-freebsd-bugs Sat Jun 15 11:37:07 1996 Return-Path: owner-bugs Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id LAA08301 for bugs-outgoing; Sat, 15 Jun 1996 11:37:07 -0700 (PDT) Received: from matlock.mindspring.com (matlock.mindspring.com [204.180.128.10]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id LAA08296 for ; Sat, 15 Jun 1996 11:37:05 -0700 (PDT) Received: from borg.mindspring.com (borg.mindspring.com [204.180.128.14]) by matlock.mindspring.com (8.6.12/8.6.9) with ESMTP id OAA00683 for ; Sat, 15 Jun 1996 14:37:01 -0400 Received: from mule1.mindspring.com [204.180.128.167] by borg.mindspring.com with ESMTP id OAA01034 for ; Sat, 15 Jun 1996 14:37:00 -0400 Received: (from news@localhost) by mule1.mindspring.com (8.6.12/8.6.12) id OAA61276; Sat, 15 Jun 1996 14:37:01 -0400 To: lists-freebsd-bugs@matlock.mindspring.com Path: usenet From: Robert Sanders Newsgroups: lists.freebsd.bugs Subject: Re: kern/1293: Fatal trap 12: page fault while in kernel mode (PPP/modems/cyclades?) Date: 15 Jun 1996 14:37:01 -0400 Organization: MindSpring Enterprises, Inc. Lines: 19 Distribution: mindspring Message-ID: References: <199606051432.RAA20913@katiska.clinet.fi> NNTP-Posting-Host: xena.mindspring.com X-Newsreader: Gnus v5.2.17/XEmacs 19.13 Sender: owner-bugs@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Heikki Suonsivu writes: > The machine locks up with console containing either > > Fatal trap 12: page fault while in kernel mode > > Fatal trap 12: page fault while in kernel mode > > Fatal trap 12: page fault while in kernel mode Using kernel PPP on -current of April 12th or so, I get random "Fatal double fault" messages and complete hangs. The machine never reboots, drops to DDB, or gives any other information afterward. This has never happened in months of user PPP. I'd just stick to userland PPP, but it randomly loses packets and gives erratic performance. How does one begin to debug a "fatal double fault"? -- Robert