From owner-freebsd-stable Tue Jun 11 21:56:24 1996 Return-Path: owner-stable Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id VAA26603 for stable-outgoing; Tue, 11 Jun 1996 21:56:24 -0700 (PDT) Received: from haven.uchicago.edu (root@haven.uchicago.edu [128.135.12.3]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id VAA26598 for ; Tue, 11 Jun 1996 21:56:22 -0700 (PDT) Received: from meno.uchicago.edu (meno.uchicago.edu [128.135.21.34]) by haven.uchicago.edu (8.7.5/8.7.3) with ESMTP id XAA10593 for ; Tue, 11 Jun 1996 23:55:50 -0500 (CDT) Received: from meno.uchicago.edu (localhost [127.0.0.1]) by meno.uchicago.edu (8.7.5/8.7.3) with ESMTP id XAA06651 for ; Tue, 11 Jun 1996 23:58:36 -0500 (CDT) Message-Id: <199606120458.XAA06651@meno.uchicago.edu> To: freebsd-stable@freebsd.org Subject: Re: Kernel panic - double fault In-reply-to: Your message of "Wed, 12 Jun 1996 00:00:10 CDT." <199606120403.AAA23186@ns2.harborcom.net> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <6647.834555515.1@meno.uchicago.edu> Date: Tue, 11 Jun 1996 23:58:35 -0500 From: steve farrell Sender: owner-stable@freebsd.org X-Loop: FreeBSD.org Precedence: bulk i'm not sure if this problem is related to this, but i've been running a -stable i supped, well, i guess 2 days ago. i posted in -questions about how it would seem to run out of processes unexplainably after about 12 hours of single-user use. well, more recently it went down like a rock without a single error message while running netscape. i've since reverted to 2.1-R and i'll probably make a remark in a couple of days if that seems to have fixed the problems... in addition to my config file which i posted in -questions, one other thing to note is that i have a $12 NE2000 clone. i know linux had some huge problems with these things causing crashes -- how about freebsd? might this have caused the crash i experienced today? i've noticed that freebsd network performance is significantly slower than linux pre-2.0 with this card. for example, ftp from a sparc 1 maxes at 300 kb/sec, often slower, and rather unevely despite the fact that the sparc is about 2 feet away on a un-trafficked lan. with linux i was getting 550-600 kb/sec evenly. (sparc <-> another sparc seems to be around a meg/sec). i was also having trouble with linux crashing, and nfs timeouts... so i'm thinking there might be some unsavory interaction between the kernel and this card -- does this seem likely? (nothing in /var/log/messages -- is there a way to turn on more extensive logging in the kernel?) also -- if you think that this card might be the culprit, with what ISA card should i replace it? thanks much --- steve farrell >Well, the new (old) pmap.c seems to be holding up. The machine >previously crashed at least once every 24 hours. It has now been up >for over 48. Just to let you know that the pmap code seems to have >made the difference. > >On 9 Jun 96 at 17:54, David Greenman wrote: > >> >FWIW, our news server has been crashing about once a day with this >> >double fault as well. Next time it happens I'll look up the address >> > and forward it on. It was doing this before the mega-commit, so >> >after things got cleaned up I rebuilt but the machine still goes >> >down about once a day, usually during an expire. >> >> Please update your kernel to the "current" -stable. I just >> reverted the >> pmap code to what was in 2.1R due to possibly related problems. >> >> -DG > >Bradley Dunn >Harbor Communications -- www.haborcom.net >or something... >