From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Fitzhardinge Subject: Re: Vmware crashes if compress/misc.c scrolls? Date: Wed, 20 Jun 2007 17:21:43 -0700 Message-ID: <4679C497.8090500@goop.org> References: <4679BBCB.2000202@zytor.com> <4679C152.8070407@goop.org> <4679C37E.5020908@zytor.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4679C37E.5020908@zytor.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: "H. Peter Anvin" Cc: Virtualization Mailing List List-Id: virtualization@lists.linuxfoundation.org H. Peter Anvin wrote: > Jeremy Fitzhardinge wrote: > >> Yes. Is this a report of observed failure? And how would VMWare even >> go about implementing this kind of misfeature? Maybe it fails with >> particular instructions reading the framebuffer? >> > > It supposedly is. > You mean "is a real failure"? Or "is triggered by particular instructions"? It seems profoundly bogus (as in, surely DOS or something reads the framebuffer). >> Maintain a shadow framebuffer, and copy it to the real framebuffer on >> update... >> > > How would you populate the shadow framebuffer? Pass it in from real mode? > Erm. BIOS always says basically the same stuff, so just compile a screenshot into the setup code? J