[Bug 99851] New: [drm:.r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x8504)=0xCAFEDEAD)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99851

            Bug ID: 99851
           Summary: [drm:.r600_ring_test [radeon]] *ERROR* radeon: ring 0
                    test failed (scratch(0x8504)=0xCAFEDEAD)
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Driver/Radeon
          Assignee: xorg-driver-ati at lists.x.org
          Reporter: intermediadc at hotmail.com
        QA Contact: xorg-team at lists.x.org

Created attachment 129698
  --> https://bugs.freedesktop.org/attachment.cgi?id=129698&action=edit
xorg log

[    1.837108] [drm:.r600_ring_test [radeon]] *ERROR* radeon: ring 0 test
failed (scratch(0x8504)=0xCAFEDEAD)
[    1.837122] radeon 0000:0a:00.0: disabling GPU acceleration


>From Xorg 1.6 on PowerMac G5 dont have any more accelerations with radeons gpus
5xxxx and 6xxxx because the ring issue.
Only 4xxxx is working but face freeze when 3d programs start running 

This issue is present today too on Fedora 25 PPC64 too
and is present on Debian (ppc32) and Ubuntu (ppc 32)

.Org X Server 1.19.1
Release Date: 2017-01-11
X Protocol Version 11, Revision 0

I been try all te kernel configs without any positive result .
i been try to insert the firmware of the gpu inside the kernel same issue.
many others are reporting the same issue.


My mesa Version is: 17.0.0
pls help!

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