Comment 2 for bug 717889

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oiv (otto-valjakko) wrote : Re: (via ttm_bo_ref_bug) BUG: unable to handle kernel paging request at fffffffffffffff8

I can confirm the same bug.

Ubuntu natty narwhal with

2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:50 UTC 2011 i686 athlon i386 GNU/Linux

Ati Radeon card with Chipset: "ATI Radeon 9600XT AR (AGP)" (ChipID = 0x4152)

systems run 10-30mins and dies.

Adding this xorg.conf seems to fix the problem

Section "Device"
         Identifier "Radeoni"
         Driver "radeon"
         Option "EnablePageFlip" "false"
EndSection