From owner-cvs-sys Sat Apr 4 09:34:04 1998 Return-Path: Received: (from daemon@localhost) by hub.freebsd.org (8.8.8/8.8.8) id JAA15886 for cvs-sys-outgoing; Sat, 4 Apr 1998 09:34:04 -0800 (PST) (envelope-from owner-cvs-sys) Received: from ns.mt.sri.com (sri-gw.MT.net [206.127.105.141]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id JAA15860; Sat, 4 Apr 1998 09:33:54 -0800 (PST) (envelope-from nate@mt.sri.com) Received: from mt.sri.com (rocky.mt.sri.com [206.127.76.100]) by ns.mt.sri.com (8.8.8/8.8.8) with SMTP id KAA11345; Sat, 4 Apr 1998 10:33:43 -0700 (MST) (envelope-from nate@rocky.mt.sri.com) Received: by mt.sri.com (SMI-8.6/SMI-SVR4) id KAA27766; Sat, 4 Apr 1998 10:33:41 -0700 Date: Sat, 4 Apr 1998 10:33:41 -0700 Message-Id: <199804041733.KAA27766@mt.sri.com> From: Nate Williams MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: Kazutaka YOKOTA Cc: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG, cvs-sys@FreeBSD.ORG Subject: Re: cvs commit: src/sys/i386/isa syscons.c In-Reply-To: <199804041626.IAA06737@freefall.freebsd.org> References: <199804041626.IAA06737@freefall.freebsd.org> X-Mailer: VM 6.29 under 19.15 XEmacs Lucid Sender: owner-cvs-sys@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > yokota 1998/04/04 08:26:54 PST > > Modified files: > sys/i386/isa syscons.c > Log: ... > Video mode switch fixes: > - Stop the screen saver when changing video modes. > - Enclose the critical section with a pair of spltty()/splx(). > - A kludge to prevent scrn_update() from accessing video memory in less- > critical sections in video mode change; artificially turn on the > UNKNOWN_MODE flag. Is it possible that these fixes could cause the 'hang switching' bugs that occur when swapping virtual screens when X is starting up? (BTW - SCO has *exactly* the same problem, so syscons is doing a better job of emulating it than most would expect, even the bugs. :) nate