From owner-freebsd-current Wed Nov 20 17:31:15 2002 Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5B05E37B401 for ; Wed, 20 Nov 2002 17:31:14 -0800 (PST) Received: from rootlabs.com (root.org [67.118.192.226]) by mx1.FreeBSD.org (Postfix) with SMTP id CF98A43E4A for ; Wed, 20 Nov 2002 17:31:10 -0800 (PST) (envelope-from nate@rootlabs.com) Received: (qmail 65687 invoked by uid 1000); 21 Nov 2002 01:31:12 -0000 Date: Wed, 20 Nov 2002 17:31:12 -0800 (PST) From: Nate Lawson To: Mitsuru IWASAKI Cc: freebsd-current@FreeBSD.ORG Subject: Re: DP2 (I think!) crash booting from floppies In-Reply-To: <20021121.095212.95909987.iwasaki@jp.FreeBSD.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Thu, 21 Nov 2002, Mitsuru IWASAKI wrote: > Nate Lawson wrote: > > Can someone get the memory detection (int 12) back to stable? The > > conservative approach seems to only have the limitation of "losing" 640k > > whereas the experimental approach causes panics. > > > > Can we take such critical experiments out of the base system and let them > > mature as a patch? I heard something about a release coming up or > > something like that. > > I already got the memory detection (int 12) back to STABLE and CURRENT. > After all, nothing had changed there except for having new loader tunable. > > If you find 'Fatal trap 12: page fault while in vm86 mode' message at > early kernel boot stage, your BIOS probably has broken INT 12H (in my > case, it was not implemented by BIOS writer). > The loader tunable 'hw.hasbrokenint12' is workaround for it. > Try this at loader prompt: > ok set hw.hasbrokenint12="1" Ah, thank you very much. I didn't know this had been reverted. The tunable should be documented in the errata section as I'm sure other users would appreciate that. -Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message