Re: [PATCH v2 18/18] Documentation/drm: kerneldoc for GuC

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On Thu, Apr 09, 2015 at 06:24:01AM -0700, shuang.he@xxxxxxxxx wrote:
> Tested-By: Intel Graphics QA PRTS (Patch Regression Test System Contact: shuang.he@xxxxxxxxx)
> Task id: 6129
> -------------------------------------Summary-------------------------------------
> Platform          Delta          drm-intel-nightly          Series Applied
> PNV                 -1              276/276              275/276
> ILK                 -2              302/302              300/302
> SNB                 -1              313/313              312/313
> IVB                 -1              337/337              336/337
> BYT                 -1              286/286              285/286
> HSW                 -1              395/395              394/395
> BDW                 -3              321/321              318/321
> -------------------------------------Detailed-------------------------------------
> Platform  Test                                drm-intel-nightly          Series Applied
> *PNV  igt@drv_debugfs_reader      PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)INFO:trying_to_register_non-static_key@INFO: trying to register non-static key.
> *ILK  igt@drv_debugfs_reader      PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)INFO:trying_to_register_non-static_key@INFO: trying to register non-static key.
> *ILK  igt@gem_fenced_exec_thrash@no-spare-fences-busy      PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:i915_hangcheck_elapsed[i915]]*ERROR*Hangcheck_timer_elapsed...bsd_ring_idle@Hangcheck timer elapsed... bsd ring idle
> *SNB  igt@drv_debugfs_reader      PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)INFO:trying_to_register_non-static_key@INFO: trying to register non-static key.
> *IVB  igt@drv_debugfs_reader      PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)INFO:trying_to_register_non-static_key@INFO: trying to register non-static key.
> *BYT  igt@drv_debugfs_reader      PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)INFO:trying_to_register_non-static_key@INFO: trying to register non-static key.
> *HSW  igt@drv_debugfs_reader      PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)INFO:trying_to_register_non-static_key@INFO: trying to register non-static key.
> *BDW  igt@drm_vma_limiter      PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)INFO:possible_circular_locking_dependency_detected@INFO: possible circular locking dependency detected
> *BDW  igt@gem_dummy_reloc_loop@render      PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)drm:i915_hangcheck_elapsed[i915]]*ERROR*Hangcheck_timer_elapsed...render_ring_idle@Hangcheck timer elapsed... render ring idle
> *BDW  igt@gem_exec_faulting_reloc@no-prefault      PASS(3)      DMESG_WARN(1)
> (dmesg patch applied)INFO:possible_circular_locking_dependency_detected@INFO: possible circular locking dependency detected
> Note: You need to pay more attention to line start with '*'

Sounds like this patch series breaks lockdep pretty badly. Please retest
with CONFIG_PROVE_LOCKING (and all the other debug options while you're at
it) and fixup the fallout.

Thanks, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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