[Bug 96751] [IGT] [BXT-P] prime_busy some subtests fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96751

--- Comment #2 from cprigent <christophe.prigent at intel.com> ---
Also reproduced on KBL-U. 5 subcases are fail:
prime_busy at after-render
prime_busy at after-vebox
prime_busy at before-blt
prime_busy at before-default
prime_busy at before-render

./prime_busy --r after-render
IGT-Version: 1.15-g0404de4 (x86_64) (Linux: 4.7.0-rc5-patch-enable-guc-on-kbl+
x86_64)
(prime_busy:4240) CRITICAL: Test assertion failure function one, file
prime_busy.c:136:
(prime_busy:4240) CRITICAL: Failed assertion: prime_busy(&pfd[SCRATCH], false)
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [one+0x554]
  #2 [__real_main164+0x253]
  #3 [main+0x29]
  #4 [__libc_start_main+0xf0]
  #5 [_start+0x29]
  #6 [<unknown>+0x29]
Subtest after-render failed.
**** DEBUG ****
(prime_busy:4240) ioctl-wrappers-DEBUG: Test requirement passed:
gem_has_ring(fd, ring)
(prime_busy:4240) DEBUG: Test requirement passed: !(gen == 6 && e->exec_id ==
I915_EXEC_BSD)
(prime_busy:4240) DEBUG: Test requirement passed: __gem_execbuf(fd, &execbuf)
== 0
(prime_busy:4240) CRITICAL: Test assertion failure function one, file
prime_busy.c:136:
(prime_busy:4240) CRITICAL: Failed assertion: prime_busy(&pfd[SCRATCH], false)
****  END  ****
Subtest after-render: FAIL (0.002s)

I will attach dmesg.

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