[Bug 95166] [KBL] Suspend to disk does work after several iterations

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95166

--- Comment #7 from cprigent <christophe.prigent at intel.com> ---
Created attachment 125980
  --> https://bugs.freedesktop.org/attachment.cgi?id=125980&action=edit
kblu_4.8-rc2_reboot-when-resuming from-s4_kern.log

I reproduced the reboot instead of resuming from S4 after 23 iterations.

Last successful S4:
[ 1568.563040] PM: restore of devices complete after 1737.328 msecs
Main errors:
[ 1434.641124] Bluetooth: hci0: Failed to load Intel firmware file (-11)
[ 1434.641388] Bluetooth: hci0: Reading Intel version information failed (-4)
[ 1435.348562] [drm:intel_cpu_fifo_underrun_irq_handler] *ERROR* CPU pipe B
FIFO underrun
[ 1500.179487] Bluetooth: hci0: Failed to load Intel firmware file (-11)
[ 1500.180195] Bluetooth: hci0: Reading Intel version information failed (-4)
[ 1500.884606] [drm:intel_cpu_fifo_underrun_irq_handler] *ERROR* CPU pipe B
FIFO underrun
[ 1565.717729] Bluetooth: hci0: Failed to load Intel firmware file (-11)
[ 1565.722352] Bluetooth: hci0: Reading Intel version information failed (-4)
[ 1566.426511] [drm:intel_cpu_fifo_underrun_irq_handler] *ERROR* CPU pipe B
FIFO underrun

Platform: KABY LAKE-U
Processor : Genuine Intel(R) CPU 0000 @ 1.80GHz (cpu family: 6, model: 142,
stepping: 9)
MCP : KBL-U J0 2+3e
QDF : QL9J
PCH: PCH-LP C1
CRB : KABY LAKE U DDR3L RVP7
Rework: O-16

Software
BIOS: 45.1 3KBLSE2R1.R00.X045.P01.1606291634 from
https://ubit-artifactory-ba.intel.com/artifactory/owr-repos/Submissions/ifwi/KBL_ORANGE_IFWI_2016_WW27_3_03_SR'17/
ME FW: 11.6.0.1065
EC FW: 1.24
KSC: 1.24
Linux distribution: Ubuntu 16.04 64 bits
Kernel: 4.8.0-rc2 f53a8d1 from http://cgit.freedesktop.org/drm-intel/
    commit f53a8d1853e8a97ad4a6308ffa8a2011fbd80467
    Author: Chris Wilson <chris at chris-wilson.co.uk>
    Date:   Fri Aug 19 17:24:52 2016 +0100
    drm-intel-nightly: 2016y-08m-19d-16h-24m-21s UTC integration manifest
libdrm-2.4.70-2 b214b05 from git://anongit.freedesktop.org/mesa/drm
mesa: mesa-11.2.2 3a9f628from git://anongit.freedesktop.org/mesa/mesa
cairo 1.15.2 db8a7f1 from git://anongit.freedesktop.org/cairo
xorg-server-1.18.0- 532 6e5bec2 from git://git.freedesktop.org/git/xorg/xserver
xf86-video-intel 2.99.697 12c14de from
git://git.freedesktop.org/git/xorg/driver/xf86-video-intel
libva-1.7.0-45 b27feb9 from git://git.freedesktop.org/git/vaapi/libva 
vaapi-intel-driver: 1.7.0-89 b53fad9 from
git://git.freedesktop.org/git/vaapi/intel-driver
Intel-Gpu-Tools 1.15 a147ef2 from
http://anongit.freedesktop.org/git/xorg/app/intel-gpu-tools.git

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