From owner-freebsd-hackers Wed May 7 04:24:29 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id EAA17601 for hackers-outgoing; Wed, 7 May 1997 04:24:29 -0700 (PDT) Received: from kremvax.demos.su (kremvax.demos.su [194.87.0.20]) by hub.freebsd.org (8.8.5/8.8.5) with SMTP id EAA17596 for ; Wed, 7 May 1997 04:24:12 -0700 (PDT) Received: by kremvax.demos.su (8.6.13/D) from 0@sinbin.demos.su [194.87.0.31] with ESMTP id PAA07969; Wed, 7 May 1997 15:14:24 +0400 Received: by sinbin.demos.su id PAA13548; (8.6.12/D) Wed, 7 May 1997 15:13:59 +0400 From: bag@sinbin.demos.su (Alex G. Bulushev) Message-Id: <199705071113.PAA13548@sinbin.demos.su> Subject: Re: LKMs and decrease system stability ? In-Reply-To: from "Vasily V. Grechishnikov" at "May 7, 97 02:07:26 pm" To: bazilio@economic.acnit.ac.ru (Vasily V. Grechishnikov) Date: Wed, 7 May 1997 15:13:59 +0400 (MSD) Cc: freebsd-hackers@freebsd.org X-Mailer: ELM [version 2.4ME+ PL31H (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk dont use NFS LKM, its buggy, include NFS into kernel Alex. > Hi ! > I run FreeBSD ( 2.2 BETA and 2.2R) on the one computer about > 4 months and never seen any system crashes, except the msdosfs bugs, > system console locks if I try to mount bad msdos media ( diskette/hdd) . > Few days ago I try to move filesystems code from kernel to LKMs- > such as NFS, CD9660, MSDOSFS. It works good, but I for first time in my > expirience with FreeBSD on this machine see actually seriuos system crash: > Fatal trap 12: page fault while in kernel mode, supervisor read, > page not present > Fault virtual address = 0xuglyc0de > Kernel dumped at swap device 1 . > > I see thats when I try to mount not very good WORM-CD ( recorded 680MB, > can see only about of 400MB). > I see crashes of FreeBSD only on broken motherboards. We had > 5x86 motherboard with broken RAM subsystem. Kernel regularly paniced with > message " Double Fault ". > Any suggestions ? > > Thanks , Vasily . > > ******[FreeBSD it is coolest UNIX for PC!]******* > * System admin , ftp and web master. * > * Home Page: http://www.econ.acnit.ac.ru/ * > * E-mail: bazilio@economic.acnit.ac.ru * > * * > * Industrial Economy Departament * > * Voronezh State Technical University * > ************************************************* > > >