From owner-freebsd-current Sat Sep 16 00:28:55 1995 Return-Path: owner-current Received: (from root@localhost) by freefall.freebsd.org (8.6.12/8.6.6) id AAA03518 for current-outgoing; Sat, 16 Sep 1995 00:28:55 -0700 Received: from GndRsh.aac.dev.com (GndRsh.aac.dev.com [198.145.92.241]) by freefall.freebsd.org (8.6.12/8.6.6) with ESMTP id AAA03506 for ; Sat, 16 Sep 1995 00:28:44 -0700 Received: (from rgrimes@localhost) by GndRsh.aac.dev.com (8.6.12/8.6.12) id AAA01022; Sat, 16 Sep 1995 00:28:06 -0700 From: "Rodney W. Grimes" Message-Id: <199509160728.AAA01022@GndRsh.aac.dev.com> Subject: Re: Which SUP files are available and where ? To: davidg@Root.COM Date: Sat, 16 Sep 1995 00:28:05 -0700 (PDT) Cc: pst@shockwave.com, jmb@kryten.atinc.com, andreas@knobel.gun.de, current@freebsd.org In-Reply-To: <199509152209.PAA02115@corbin.Root.COM> from "David Greenman" at Sep 15, 95 03:08:58 pm X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 1319 Sender: owner-current@freebsd.org Precedence: bulk > > >I thought a couple of people were reporting sig 11 problems on -stable. > >Is it true that there are NO sig 11 problems that we're aware of? > > There are no known reliability problems with -stable. All of the people > that I'm aware of that reported (any sort of) problems have since figured > out what was causing them and have fixed them. There was one bug which Rod > found that was causing a "CMAP busy" panic, but this isn't a new problem > and has been with us since last year. It is caused by an attempt to read > from /dev/kmem in an area that has no currently mapped page. This results > in a page fault and subsequantly messed up 'CMAP' page table entry. The > problem will normally only be seen when you have an out of date > /var/db/kvm_kernel.foo.db file. It only happens at boot time and it's actually > quite rare. And should probably be added to the FAQ under an entry: Q. Why do I get a ``CMAP busy panic during boot just after installing a new kernel? A. The logic that attempts to detect an out of data /var/db/kvm_*.db files sometimes fails and using a mismatched file can sometimes lead to panics. F. rm /var/db/kvm_*.db -- Rod Grimes rgrimes@gndrsh.aac.dev.com Accurate Automation Company Reliable computers for FreeBSD