[Bug 46274] New: Reading from /sys/kernel/debug/dri/0/radeon_ring_cp* cause null-pointer dereference

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https://bugs.freedesktop.org/show_bug.cgi?id=46274

             Bug #: 46274
           Summary: Reading from /sys/kernel/debug/dri/0/radeon_ring_cp*
                    cause null-pointer dereference
    Classification: Unclassified
           Product: DRI
           Version: unspecified
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel@xxxxxxxxxxxxxxxxxxxxx
        ReportedBy: thomas.lindroth@xxxxxxxxx


Using evergreen(cedar) hardware reading from /sys/kernel/debug/dri/0/radeon_ring_cp[12] cause null-pointer dereference with latest linus git(3.3-rc4).

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