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

20 Jul 2012


      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@lists.freedesktop.org
        ReportedBy: stefandoesinger@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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[Bug 52313] New: r600g: Linux 3.3.x broken since 30257c32