[Bug 89728] [HSW/BSW/SKL bisected] igt/pm_rps/ subcases reset and blocking fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89728

--- Comment #12 from ye.tian <yex.tian at intel.com> ---
This issue also exists on BDW.

output:
--------------
root at x-bdw01:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./pm_rps
--run-subtest reset
IGT-Version: 1.10-gd9a25af (x86_64) (Linux:
4.0.0-rc6_drm-intel-nightly_ff2304_20150331+ x86_64)
Test assertion failure function checkit, file pm_rps.c:154:
Failed assertion: freqs[MIN] <= freqs[CUR]
error: 450 > 100
Stack trace:
  #0 [__igt_fail_assert+0xfc]
  #1 [checkit+0x8b]
  #2 [loaded_check+0x43]
  #3 [__real_main660+0x348]
  #4 [main+0x21]
  #5 [__libc_start_main+0xf5]
  #6 [_start+0x29]
  #7 [<unknown>+0x29]
Subtest reset failed.
**** DEBUG ****
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
Waited 10000 msec to stabilize cur
Stop rings...
Ring stop cleared
Apply high load...
gt freq (MHz):  cur=100  min=450  max=500  RP0=500  RP1=200  RPn=100
Test assertion failure function checkit, file pm_rps.c:154:
Failed assertion: freqs[MIN] <= freqs[CUR]
error: 450 > 100
****  END  ****
Subtest reset: FAIL (25.835s)
Test assertion failure function load_helper_stop, file pm_rps.c:290:
Failed assertion: igt_wait_helper(&lh.igt_proc) == 0
Last errno: 10, No child processes
Stack trace:
  #0 [__igt_fail_assert+0xfc]
  #1 [load_helper_stop+0x53]
  #2 [pm_rps_exit_handler+0xfd]
  #3 [igt_atexit_handler+0x49]
  #4 [__libc_secure_getenv+0xf9]
  #5 [exit+0x15]
  #6 [igt_exit+0xde]
  #7 [main+0x26]
  #8 [__libc_start_main+0xf5]
  #9 [_start+0x29]
  #10 [<unknown>+0x29]
Test pm_rps failed.
**** DEBUG ****
Exiting with status code 99
Test assertion failure function load_helper_stop, file pm_rps.c:290:
Failed assertion: igt_wait_helper(&lh.igt_proc) == 0
Last errno: 10, No child processes
****  END  ****
pm_rps: igt_core.c:949: igt_fail: Assertion `!test_with_subtests || in_fixture'
failed.
Aborted (core dumped)

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