[Bug 101236] [IGT] [BDW] some gem_exec_whisper failed causing gpu hung! (vbe_init() failed with -22)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101236

--- Comment #4 from Humberto Israel Perez Rodriguez <humberto.i.perez.rodriguez at intel.com> ---
(In reply to Chris Wilson from comment #2)
> Where is the output from the test in the attached logs? Where is the GPU
> error state?

the output from the test is in the description of this bug, the both tests
never ends, and GPU error state shows "No error state collected"


Test output
=======================================
(gem_exec_whisper:1445) igt-aux-CRITICAL: Test assertion failure function
sig_abort, file igt_aux.c:443:
(gem_exec_whisper:1445) igt-aux-CRITICAL: Failed assertion: !"GPU hung"
Stack trace:
  #0 [__igt_fail_assert+0x101]
  #1 [sig_abort+0x3a]
  #2 [killpg+0x40]
  #3 [__wait+0x1e]
  #4 [igt_waitchildren+0x68]
  #5 [whisper+0x1f9]
  #6 [__real_main532+0x2e6]
  #7 [main+0x33]
  #8 [__libc_start_main+0xf1]
  #9 [_start+0x29]
  #10 [<unknown>+0x29]
Subtest blt-fds-forked failed.
**** DEBUG ****
(gem_exec_whisper:1445) igt-debugfs-DEBUG: Opening debugfs directory
'/sys/kernel/debug/dri/0'
(gem_exec_whisper:1445) DEBUG: Test requirement passed: gem_has_ring(fd,
engine)
(gem_exec_whisper:1445) DEBUG: Test requirement passed: gem_can_store_dword(fd,
engine)
(gem_exec_whisper:1445) DEBUG: Test requirement passed: nengine
(gem_exec_whisper:1445) DEBUG: Test requirement passed: gen >= 6
(gem_exec_whisper:1445) igt-debugfs-DEBUG: Opening debugfs directory
'/sys/kernel/debug/dri/0'
(gem_exec_whisper:1445) igt-debugfs-DEBUG: Opening debugfs directory
'/sys/kernel/debug/dri/0'
(gem_exec_whisper:1445) igt-aux-CRITICAL: Test assertion failure function
sig_abort, file igt_aux.c:443:
(gem_exec_whisper:1445) igt-aux-CRITICAL: Failed assertion: !"GPU hung"
****  END  ****
Subtest blt-fds-forked: FAIL (8.173s)
(gem_exec_whisper:1445) igt-core-DEBUG: Exiting with status code 99

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