On Sat, 2009-04-18 at 21:06 +0200, Thomas Hellström wrote: > Jerome Glisse wrote: > > Hi Thomas > > > > I am getting massive error on x86_64, things like : > > BUG: Bad page map in process gnome-session pte:1f1d1d1d01000000 > > pmd:321a6067 > > keep filling the log until very bad things happen. > > Do you have any idea what might cause that in ttm ? > > My assumption is that ttm vm code is guilty their. > > Note that on x86 exact same code seem to run fine. > > All this with 2.6.29 final. > > > > Cheers, > > Jerome Glisse > > > > > Hi, Jerome! > > The TTM code may well be guilty here. I haven't tested x86-64 for a > while, but I can probably give it a try on openChrome next week. > > /Thomas
Okay so i really narrowed it down to asking for WC memory, so my guess is that either my CPU (AMD Athlon(tm) Dual Core Processor 4450e) have PAT issue either TTM PAT/WC code is wrong somehow. I haven't time yet to go deeper with this but i think it worked on an Intel Core2 CPU with x86-64. Also it seems other people doesn't have the issue with WC on x86-64. PS: Sorry for all the noise, the bug didn't always showed up quickly so i had false feeling. I am yet unsure it's fully fixed but so far all my test case which triggered it seems to work fine. Cheers, Jerome ------------------------------------------------------------------------------ Stay on top of everything new and different, both inside and around Java (TM) technology - register by April 22, and save $200 on the JavaOne (SM) conference, June 2-5, 2009, San Francisco. 300 plus technical and hands-on sessions. Register today. Use priority code J9JMT32. http://p.sf.net/sfu/p -- _______________________________________________ Dri-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dri-devel
