[Intel-gfx] [intel-gfx][i-g-t] test/pm_rpm fail in wait_for_suspend

[Gu, HailinX]

Hi~ all

I run the test on a desktop machine with i7-6700. And connecting to a kvm. I have checked the status of runtime PM. It's active when we expect suspend.
And it could be success on another machine with i7-4770.
Thanks for your help.
Log shows below.



err:

(pm_rpm:5978) CRITICAL: Test assertion failure function basic_subtest, file pm_rpm.c:716:

(pm_rpm:5978) CRITICAL: Failed assertion: wait_for_suspended()

Subtest basic-rte failed.

**** DEBUG ****

(pm_rpm:5978) CRITICAL: Test assertion failure function basic_subtest, file pm_rpm.c:716:

(pm_rpm:5978) CRITICAL: Failed assertion: wait_for_suspended()

****  END  ****

out:

IGT-Version: 1.19-g4258cc8e (x86_64) (Linux: 4.12.0 x86_64)

Runtime PM support: 1

PC8 residency support: 0

Stack trace:

 #0 [_init+0x1b2b9]

#1 [_init+0x207d]

#2 [__libc_start_main+0xf1]

#3 [_init+0x3f22]

 #4 [<unknown>+0x3f22]

Subtest basic-rte: FAIL (10.038s)",



Thank you
Gu
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