[Bug 33369] New: Radeon instability with EXA acceleration enabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=33369

           Summary: Radeon instability with EXA acceleration enabled
           Product: xorg
           Version: 7.5
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: lomarcan at tin.it
         QAContact: xorg-team at lists.x.org


Created an attachment (id=42316)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=42316)
GPU Lockup log

System: various kernel from 2.6.33 to 2.6.38-pre1
Driver: xf86-video-ati-6.13.2
X-Server: xorg-server-1.9.3
GPU: Radeon 9000 mobility on a GoBook 3

With EXA acceleration enabled (radeon kernel module loaded, irrespectively of
the modeset options) there are multiple issues, like:
- xvideo is slow, often skips a frame and shows the previous one
- GPU lockups on heavy activity (like flash based sited)
- -vo gl_nosw in mplayer works fine but often locks up on exit

I already have agp_mode=-1 in the kernel modeline.

Using "AccelMethod" "XAA" with modeset=0 works fine with everything except
xvideo with 16bpp, it only shows a blue screen (24bpp is OK)

Attached is a typical lockup log (it repeats and I need to reboot with SysRq).
Of course I can give any other log or information needed to solve the issue

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