Radeon DRI w/ large memory

I recently upgraded my memory to 1GB and compiled 4GB large memory support into the kernel. Now, my display freezes when I try to use DRI with my ATI Radeon VE (Radeon 7000 chipset IIRC). The machine is still responsive to the LAN, but even if I kill X, the display remains frozen. Disabling large memory support makes the problem go away.

I can live without the extra 44MB of memory, but I'd really like to get this fixed. I vaguely remember hearing about a bug like this, but I have to idea how to patch it. I use 2.4.20-ac1 and my motherboard is a Gigabyte GA-7VRX.

Thanks,
Daniel Franke

Everything seems fine when I use vanilla 2.4.20. Hightower from #kernelnewbies tells me that there is a known bug in -ac with Radeon DRI and 2.4.20-ac1, but that as far as he is aware, the bug occurs regardless of the large memory setting. However, since the bug goes away when I switch to the linus tree, I will assume that it is the same bug. If I see otherwise when the known bug is supposedly fixed, I will post further information.

Sounds unrelated. I'm removing the drm update in -ac soon I think.

Where can we find latest Radeon DRI/DRM update !?
So I can resolve something like this ->

Radeon DRI driver:
Compatibility mode for DRM driver version 1.1.1 TCL will be disabled, expect reduced performance (prefer DRM radeon.o 1.3.x or newer)

ps

	linus-2.4.20

Mario Mikočević (Mozgy)
mozgy at hinet dot hr
My favourite FUBAR ...