[Bug 104871] [guc] igt at gem_sync@preempt-blt Failed assertion !"GPU hung"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104871

--- Comment #8 from Elizabeth <elizabethx.de.la.torre.mena at intel.com> ---
Created attachment 137142
  --> https://bugs.freedesktop.org/attachment.cgi?id=137142&action=edit
kern_log_cfl_guc

I tested with and without guc again with tests:

igt at gem_exec_whisper@blt-contexts-priority
igt at gem_exec_whisper@default-contexts-priority
igt at gem_sync@preempt-all
igt at gem_sync@preempt-blt
igt at gem_exec_schedule@smoketest-blt

They fails with guc enable: 

Stdout  
IGT-Version: 1.21-g37bd27f (x86_64) (Linux:
4.15.0-drm-intel-qa-ww5-commit-e1b21c1+ x86_64)
Using GuC submission
Stack trace:
  #0 [__igt_fail_assert+0x101]
  #1 [sig_abort+0x3a]
  #2 [killpg+0x40]
  #3 [__wait+0x1e]
  #4 [igt_waitchildren+0x61]
  #5 [whisper+0x281]
  #6 [__real_main522+0x370]
  #7 [main+0x27]
  #8 [__libc_start_main+0xf1]
  #9 [_start+0x2a]
  #10 [<unknown>+0x2a]
Subtest blt-contexts-priority: FAIL (8.567s)
Stderr  
(gem_exec_whisper:4113) igt-aux-CRITICAL: Test assertion failure function
sig_abort, file igt_aux.c:482:
(gem_exec_whisper:4113) igt-aux-CRITICAL: Failed assertion: !"GPU hung"
Subtest blt-contexts-priority failed.
**** DEBUG ****
(gem_exec_whisper:4113) DEBUG: Test requirement passed:
gem_scheduler_enabled(fd)
(gem_exec_whisper:4113) DEBUG: Test requirement passed:
gem_scheduler_has_ctx_priority(fd)
(gem_exec_whisper:4113) igt-debugfs-DEBUG: Opening debugfs directory
'/sys/kernel/debug/dri/0'
(gem_exec_whisper:4113) DEBUG: Test requirement passed: gem_has_ring(fd,
engine)
(gem_exec_whisper:4113) DEBUG: Test requirement passed: gem_can_store_dword(fd,
engine)
(gem_exec_whisper:4113) DEBUG: Test requirement passed: nengine
(gem_exec_whisper:4113) DEBUG: Test requirement passed:
__gem_context_create(fd, &contexts[0]) == 0
(gem_exec_whisper:4113) igt-debugfs-DEBUG: Opening debugfs directory
'/sys/kernel/debug/dri/0'
(gem_exec_whisper:4113) igt-debugfs-DEBUG: Opening debugfs directory
'/sys/kernel/debug/dri/0'
(gem_exec_whisper:4113) igt-aux-CRITICAL: Test assertion failure function
sig_abort, file igt_aux.c:482:
(gem_exec_whisper:4113) igt-aux-CRITICAL: Failed assertion: !"GPU hung"
(gem_exec_whisper:4113) igt-core-INFO: Stack trace:
(gem_exec_whisper:4113) igt-core-INFO:   #0 [__igt_fail_assert+0x101]
(gem_exec_whisper:4113) igt-core-INFO:   #1 [sig_abort+0x3a]
(gem_exec_whisper:4113) igt-core-INFO:   #2 [killpg+0x40]
(gem_exec_whisper:4113) igt-core-INFO:   #3 [__wait+0x1e]
(gem_exec_whisper:4113) igt-core-INFO:   #4 [igt_waitchildren+0x61]
(gem_exec_whisper:4113) igt-core-INFO:   #5 [whisper+0x281]
(gem_exec_whisper:4113) igt-core-INFO:   #6 [__real_main522+0x370]
(gem_exec_whisper:4113) igt-core-INFO:   #7 [main+0x27]
(gem_exec_whisper:4113) igt-core-INFO:   #8 [__libc_start_main+0xf1]
(gem_exec_whisper:4113) igt-core-INFO:   #9 [_start+0x2a]
(gem_exec_whisper:4113) igt-core-INFO:   #10 [<unknown>+0x2a]
****  END  ****

And pass without guc:

Stdout  
IGT-Version: 1.21-g37bd27f (x86_64) (Linux:
4.15.0-drm-intel-qa-ww5-commit-e1b21c1+ x86_64)
Using Execlists submission
Number of migrations for execbuf: 0
Number of migrations for reloc: 0, interrupted 0, patched 0
Number of migrations for execbuf: 0
Number of migrations for reloc: 0, interrupted 0, patched 0
Number of migrations for execbuf: 0
Number of migrations for reloc: 0, interrupted 0, patched 0
Number of migrations for execbuf: 0
Number of migrations for reloc: 0, interrupted 0, patched 0
Number of migrations for execbuf: 0
Number of migrations for reloc: 0, interrupted 0, patched 0
Number of migrations for execbuf: 0
Number of migrations for reloc: 0, interrupted 0, patched 0
Number of migrations for execbuf: 0
Number of migrations for reloc: 0, interrupted 0, patched 0
Number of migrations for execbuf: 0
Number of migrations for reloc: 0, interrupted 0, patched 0
Number of migrations for execbuf: 0
Number of migrations for reloc: 0, interrupted 0, patched 0
Number of migrations for execbuf: 0
Number of migrations for reloc: 0, interrupted 0, patched 0
Number of migrations for execbuf: 0
Number of migrations for reloc: 0, interrupted 0, patched 0
Number of migrations for execbuf: 0
Number of migrations for reloc: 0, interrupted 0, patched 0
Subtest blt-contexts-priority: SUCCESS (114.547s)

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