[Bug 2573] New: Machine lockups with radeon accel

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https://bugs.freedesktop.org/show_bug.cgi?id=2573          
     
           Summary: Machine lockups with radeon accel
           Product: xorg
           Version: CVS_head
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Driver/Radeon
        AssignedTo: xorg-bugzilla-noise at freedesktop.org
        ReportedBy: marchesin at icps.u-strasbg.fr


Using Xorg CVS on my radeon 7000 (1002:5159), the machine lockups (no ping, no
sysrq) when Mozilla scrolls. Using another card with the same PCI id,
(1002:5159) on another machine, the problem doesn't happen. So there is really
no way to tell if the card has this problem (IIRC, the difference between the
cards is a card setting that's done in the video bios).

If I comment the cache flush turn off that happens in radeon_accel.c (thanks to
Roland for the hint), the problem disappears and I can happily scroll in
mozilla. It seems that this cache setting was already causing trouble for
R300-style cards, so I propose removing it for all cards.          
     
     
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