[PATCH] agp(4) for ULi M1689/nVidia nForce3

[Adam Gregoire]

Well as it stands now I was fooling around with some options in my
xorg.conf, namely experimenting with enabling agpfastwrite, which caused
some kind of issue(blank screen) and heavy cpu(at least) usage as
passive cooling kicked in after a few seconds. Anyways I was unable to
kill X ala ctrk-alt-backspace and trying to switch to vt0 would not
work, nor would ctrl-alt-del to bring the machine down nicely. So after
I killed the power and rebooted I got the panic back that I had before.
.. the machine probes the gart but fails the device_attach of agp0
returning 6. Further along the boot as it tries to probe drm the panic
happens; all I was really able to get at this time was:
agp_get_info+0x87: movq 0(%r13),%rdi

So after I got this, I tried to reboot again and the same thing happens.
So I decided to reset my BIOS to defaults to see if that is what was
actually making the error go away before(I thought flashing my BIOS had
something to do with it originally), to no avail. What to do next ... I
decided to boot off a windows drive I have, got to the login prompt and
told the machine to reboot, let it boot back into FBSD and viola no
panic(Interesting). To see if I was just getting lucky I rebooted FBSD
and again no panic. Okay so at this point I provoked another system
crash via enabling agpfastwrite option, killed the power, reboot in FBSD
and got the panic again, rebooted FBSD and yet again a panic. I then
boot into windows hit the login screen and have the system reboot again
into FBSD and the machine came up with agp loaded fine and no panic. I
did this routine once more and had the same results.

One thing I will try to do later is to provoke getting the machine in a
state where it will repeatably panic and at that point I will power the
system down and re-seat my video card to see if it has the same effect
as booting into windows and shutting down.

If anyone has any ideas, questions or patches for me to try, get back to
me and I will be more then happy test out any theories or patches you
may have.

P.S. I apologize for my wording if I am not making sense here, I have
been up a long time.

On Tue, 2005-09-20 at 19:59 +0000, Ganael Laplanche wrote:
> Hi,
> 
> I tried the patch without drm support in the kernel. Again, I crashed my
> machine, this time at X startup. I have no more panic at boot time, neither do I
> have agp0 detected. I don't know if it's related, but I updated my BIOS to the
> latest revision as suggested by Adam Gregoire...
> 
> Regards,
> 
> Ganaël LAPLANCHE
> ganael.laplanche at martymac.com
> http://www.martymac.com
> Tel : (+33)6.84.03.57.24.
> 
> ---------- Original Message -----------
> From: Jung-uk Kim <jkim at FreeBSD.org>
> To: "Ganael Laplanche" <ganael.laplanche at martymac.com>
> Cc: freebsd-amd64 at FreeBSD.org, "K.Wieland" <wieland.k at gmail.com>
> Sent: Mon, 19 Sep 2005 17:13:40 -0400
> Subject: Re: [PATCH] agp(4) for ULi M1689/nVidia nForce3
> 
> > On Monday 19 September 2005 04:56 pm, Ganael Laplanche wrote:
> > > Hi all,
> > >
> > > I've just tested the patch, but unfortunately, it didn't work for
> > > me :( Kernel panic at bootup, with (nearly) this message :
> > >
> > > [...]
> > > drm0: <ATI Radeon if R250 9000>
> > > Fatal trap 12 : page fault while in kernel mode
> > > [...]
> > >
> > > ... and the system reboots :(
> > 
> > That's really strange.
> > 
> > > Let me know if you want me to make further tests...
> > 
> > You don't have to compile DRM in the kernel.  Xorg server will 
> > automatically load it when it's needed.  Please remove them from the 
> > configuration.  I just want to see if agp(4) works without drm.
> > 
> > Thanks,
> > 
> > Jung-uk Kim
> ------- End of Original Message -------
> 
> _______________________________________________
> freebsd-amd64 at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-amd64
> To unsubscribe, send any mail to "freebsd-amd64-unsubscribe at freebsd.org"
-- 
Adam Gregoire <ebola at psychoholics.org>