From owner-freebsd-stable Mon Dec 27 22:17:42 1999 Delivered-To: freebsd-stable@freebsd.org Received: from mass.cdrom.com (castles542.castles.com [208.214.165.106]) by hub.freebsd.org (Postfix) with ESMTP id 1F977153BF; Mon, 27 Dec 1999 22:17:37 -0800 (PST) (envelope-from msmith@mass.cdrom.com) Received: from mass.cdrom.com (localhost [127.0.0.1]) by mass.cdrom.com (8.9.3/8.9.3) with ESMTP id WAA01190; Mon, 27 Dec 1999 22:22:26 -0800 (PST) (envelope-from msmith@mass.cdrom.com) Message-Id: <199912280622.WAA01190@mass.cdrom.com> X-Mailer: exmh version 2.1.1 10/15/1999 To: "Mr. K." Cc: Mike Smith , stable@freebsd.org Subject: Re: panic In-reply-to: Your message of "Mon, 27 Dec 1999 23:32:18 EST." Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Mon, 27 Dec 1999 22:22:26 -0800 From: Mike Smith Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > > Totally untweaked kernel. I didn't get to tweaking yet. I shouldn't have > > > to tweak anything to make the kernel not panic, though... Not > > > complaining, just pre-empting possible flames. > > > > That's completely incorrect. > > > > > Is this a known problem? Yes, I should enable crash dumps, I'm going to > > > go look for documentation on that now... > > > > You might just try watching the console when the system goes over. > > GENERIC is tuned to work well on a wide range of configurations, not to > > be pounded to death. Try setting NMBCLUSTERS to something around 10000. > > > > Ran to the machine as soon as I realized what happened, but unfortunately, > too late. > > I was not root when this happened, so, basically, you're saying that > freebsd is not meant for a production environment where untrusted users > have telnet access? No. As I specifically said, the GENERIC kernel configuration is tuned for 'generic' operations. There are a small number of well-known and well-documented tuning options that need to be adjusted to accommodate the sort of extreme load situations you're encountering. You might want to think, just for a moment, why FreeBSD is in such wide use if the assumptions you're making are true. And since it is, perhaps you should re-evaluate them? -- \\ Give a man a fish, and you feed him for a day. \\ Mike Smith \\ Tell him he should learn how to fish himself, \\ msmith@freebsd.org \\ and he'll hate you for a lifetime. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message