On Sun, Sep 05, 2004 at 09:46:52AM -0300, Andre Costa wrote: > Andre Costa <acosta@xxxxxxxxxxxxxxxxxxx> wrote: > > > I upgraded kernel to 2.6.8-1.521 recently, and system has been locking > > hard when I leave my X session and return to GDM. .... > My machine has 512MB, so I was turning off "4 GB kernel-space and 4 GB > user-space virtual memory support (X86_4G)" and "High Memory Support". > This automatically turned off "Allocate 3rd-level pagetables from > highmem (HIGHPTE)", which seems to be needed for some reason (yes, IMHO > this is _very_ obscure and should be documented somewhere by nvidia > folks -- I will post a message on their forums about it). > > Once I left these 3 options untouched, I was able to do all the > tweakings I needed.... Thank you for following up. Too often folks do not take the time to recap the initial question and the solution as well as you did. Some of us will now have a richer background for future questions. I wonder if nVidia is doing something clever with memory maps and sign extensions to optimize their driver. -- T o m M i t c h e l l Just say no to 74LS73 in 2004