[Bug 52313] New: r600g: Linux 3.3.x broken since 30257c32

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=52313

             Bug #: 52313
           Summary: r600g: Linux 3.3.x broken since 30257c32
    Classification: Unclassified
           Product: Mesa
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: stefandoesinger at gmx.at


Since Mesa commit 30257c32910c3f7ac2b9cc24399d6be196d34d26 r600g fails to
render anything on Linux 3.3 and probably all earlier versions. An upgrade to
3.4 fixes the issue.

The output from glxinfo is:
radeon: The kernel rejected CS, see dmesg for more information.

This is accompanied by the following lines in dmesg:
[199859.400626] radeon 0000:01:00.0: forbidden register 0x00028b28 at 188
[199859.400628] [drm:radeon_cs_ib_chunk] *ERROR* Invalid command stream !

My understanding is that Mesa is intended to remain backwards compatible with
older kernels. If this is not the case feel free to close the bug.

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