[Bug 94932] [APL] igt drv_suspend fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94932

Imre Deak <imre.deak at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #4 from Imre Deak <imre.deak at intel.com> ---
(In reply to cprigent from comment #1)
> Created attachment 122933 [details]
> nightly-kern.log

It'(In reply to cprigent from comment #0)
> Created attachment 122932 [details]
> log drv_suspend nightly
> 
> Setup:
> ======
> Platform: Broxton P A0 Platform
> CPU Name : Intel(R) @ 1.2 GHz (family: 6, model: 92, stepping: 8) – 4 cores
> SoC : BROXTON-P A0
> CRB :  Apollo Lake RVPC1 Fab1 
> 
> Software:
> =========
> BIOS (IFWI Version): APLK_IFWI_X64_R_2015_41_5_02 
> KSC : 1.02
> Linux distribution: Ubuntu 15.10 64 bits
> Kernel: drm-intel-nightly 4.6.0-rc3 631ffd2 from
> http://cgit.freedesktop.org/drm-intel/
>   commit 631ffd2f45bb43964f729e8661532fb115f5eeec
>   Author: Jani Nikula <jani.nikula at intel.com>
>   Date:   Wed Apr 13 16:00:48 2016 +0300
>   drm-intel-nightly: 2016y-04m-13d-13h-00m-18s UTC integration manifest
> libdrm-2.4.67-11 ea78c17 from git://anongit.freedesktop.org/mesa/drm
> cairo 1.15.2 db8a7f1 from git://anongit.freedesktop.org/cairo
> DMC 1.06 from: https://01.org/linuxgraphics/downloads/broxton-dmc-1.06
> IGT 1.14 e609955 from https://cgit.freedesktop.org/xorg/app/intel-gpu-tools/
> 
> Steps:
> ------
> Execute igt test drv_suspend
> sudo -s
> cd <...>/intel-gpu-tools/tests
> ./drv_suspend
> 
> Actual results
> ----------------
> Subtests are fail
> 
> Exepected resulst
> -----------------
> Subtests are pass
> 
> Info
> -----
> Reproduced with kernel 4.6.0-rc3 72c0a99 from
> https://github.com/ideak/linux/commits/bxt-rpm

Hi Christophe,

thanks for testing this.

The above configuration data has:
Kernel: drm-intel-nightly 4.6.0-rc3 631ffd2 from
  http://cgit.freedesktop.org/drm-intel/

I assume that's incorrect and this result really comes from the bxt-rpm branch.
Another thing from  log drv_suspend ideak:
(drv_suspend:1063) igt-aux-CRITICAL: Failed assertion: system("rtcwake -s 30 -m
mem") == 0

I think this means that your RTC clock is out of sync with your system clock.
Could you make sure that these things are correct:

# ntpdate <ntpserver>
# date
# hwclock --systohc

and then rerun the test?

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