Date: Fri, 13 Jun 2003 00:07:26 -0500 From: Jeremy Messenger <mezz7@cox.net> To: Samy Al Bahra <samy@kerneled.com>, Terry Lambert <tlambert2@mindspring.com>, evantd@hotmail.com Cc: freebsd-current@freebsd.org Subject: Re: Interest in nvidia-driver debugging on 5-* Message-ID: <oprqowiow28ckrg5@smtp.central.cox.net> In-Reply-To: <1055481094.505.27.camel@beastie.freebsd.local> References: <BAY8-F134L28t8YgH5u0000662c@hotmail.com> <3EE9427D.1E2D05D6@mindspring.com> <1055481094.505.27.camel@beastie.freebsd.local>
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On 13 Jun 2003 05:11:34 +0000, Samy Al Bahra <samy@kerneled.com> wrote: > Hey, > >> I believe the fix is as simple as saving and restoring %gs in >> the nVidia driver, and/or not letting the nVidia use %gs at >> all (segment registers generally belong to the OS, in any case, >> and stealing a CPU register of any kind for exclusive use of a >> driver is a pig trick). > > Please take a look at http://www.minion.de/ > Christian Zander has written a patch to deal with the gs restoration > problem and other issues. It is well tested and adopted. Maxime Henrion > has also written several patches which may be found in the ports system > (x11/nvidia-driver). The %gs register issue patch for linux_sysvec.c has been committed in the source tree like a month ago or so, btw. :-) Cheers, Mezz > I think Terry is jumping to conclusions on what Evan's problem could be. > I have this seen this cause application to crash at exit (if using > OpenGL) but never a crash in kernel-space from the nVidia drivers. -- bsdforums.org 's moderator, mezz.
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