<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Rebinding AMDGPU causes initialization errors [R9 290 / 4.10 kernel]" href="https://bugs.freedesktop.org/show_bug.cgi?id=101946#c10">Comment # 10</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Rebinding AMDGPU causes initialization errors [R9 290 / 4.10 kernel]" href="https://bugs.freedesktop.org/show_bug.cgi?id=101946">bug 101946</a> from <a class="email" href="mailto:beanow@oscp.info" title="Robin <beanow@oscp.info>"> Robin</a> <pre>Created <a href="attachment.cgi?id=133101" name="attach_133101" title="4.13rc2 ubuntu kern.log">attachment 133101</a> <a href="attachment.cgi?id=133101&action=edit" title="4.13rc2 ubuntu kern.log">[details]</a> 4.13rc2 ubuntu kern.log Inspecting the output more closely there's a subtle difference in the error produced. While the 4.10 kernel produces: > [ 160.013733] [drm:ci_dpm_enable [amdgpu]] *ERROR* ci_start_dpm failed > [ 160.014134] [drm:amdgpu_device_init [amdgpu]] *ERROR* hw_init of IP block <amdgpu_powerplay> failed -22 The 4.13rc2, drm-next-4.14-wip and drm-next-4.14-wip with patch 3 produce: > [ 134.226312] [drm:cik_sdma_ring_test_ring [amdgpu]] *ERROR* amdgpu: ring 9 test failed (0xCAFEDEAD) > [ 134.226822] [drm:amdgpu_device_init [amdgpu]] *ERROR* hw_init of IP block <cik_sdma> failed -22 And something I noticed for the third bind error cases, the 2nd and 3rd time have much longer ring 1 tests than the first bind. > [ 69.938959] [drm] ring test on 1 succeeded in 2 usecs > ... > [ 102.040253] [drm] ring test on 1 succeeded in 677 usecs > ... > [ 134.121468] [drm] ring test on 1 succeeded in 677 usecs</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>