Nifty Hat Mitch <mitch48@xxxxxxxxxxxxx> wrote : > 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. Hi Tom, thks, I too believe it is important to contribute to this huge "virtual knowledge base" that the OSS community provides, so whenever I can I try to help with this =) I do hope this helps people get out of similar trouble. As for nvidia being aware of this issue, I did post this to their forums at nvnews.net: http://www.nvnews.net/vbulletin/showthread.php?t=36232 I can I still have to compile vanilla (kernel.org) 2.6.8.1 kernel as suggested on that thread to see if the problem is reproducible, but I assure it is 100% reproducible with RH 2.6.8-1.521. Best, Andre ___________________________________ Microlink Internet com Qualidade, http://www.microlink.com.br
