Bug 98247

Summary: [APL] GPU Hang while booting
Product: DRI Reporter: cprigent <christophe.prigent>
Component: DRM/IntelAssignee: Intel GFX Bugs mailing list <intel-gfx-bugs>
Status: CLOSED NOTABUG QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: critical    
Priority: high CC: intel-gfx-bugs
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: BXT i915 features: GPU hang
Attachments:
Description Flags
APL__dmesg__gpu-hang none

Description cprigent 2016-10-14 08:05:17 UTC 
Created attachment 127290 [details]
APL__dmesg__gpu-hang

Platform BXT-P: APL system
CPU Name : Intel(R) Genuine Processor @ 1.1 GHz (family: 6, model: 12, stepping: 9) 4 cores
QDF : Q6HE
SoC : B1
CRB : Apollo Lake DDR3L RVP1A FAB2
Reworks: R19, R20

Software 
Bios: 144_B10 APLK_B0_IFWI_X64_R_2016_06_27_0956_SPI_RVP1.bin from \\gar\ec\proj\ba\CCG\APL BIOS\External\BIOS_Release\Daily\v144_10_2016_WW27.1\IFWI\IFWI_RVP1_Release\IFWI
KSC: 1.15
Linux distribution: Ubuntu 16.04 64 bits
DMC 1.07
GuC 8.7

Kernel: 4.8.0 f79322d from http://cgit.freedesktop.org/drm-intel/
  commit f79322df75bf6193458ec601a345ba6bd86befca
  Author: Chris Wilson <chris@chris-wilson.co.uk>
  Date:   Tue Oct 11 10:16:23 2016 +0100
  drm-intel-nightly: 2016y-10m-11d-09h-16m-03s UTC integration manifest
with applied https://patchwork.freedesktop.org/patch/100578/

libdrm-2.4.71 a44c9c3 from git://anongit.freedesktop.org/mesa/drm
mesa: mesa-12.0.0 8b06176 from git://anongit.freedesktop.org/mesa/mesa
cairo 1.15.2 db8a7f1 from git://anongit.freedesktop.org/cairo
xorg-server-1.18.99.901-76 97a8353 from git://git.freedesktop.org/git/xorg/xserver
xf86-video-intel 2.99.917-712 696f58f from git://git.freedesktop.org/git/xorg/driver/xf86-video-intel
libva-1.7.2-38 3b7e499 from git://git.freedesktop.org/git/vaapi/libva 
vaapi-intel-driver: 1.7.2-133 dd73514 from git://git.freedesktop.org/git/vaapi/intel-driver

External screens: ASUS PB238Q (HDMI), LG 25UM55D (DP)

Steps:
------
1. Boot
2. Check dmesg

Actual result:
--------------
2. Log shows 2 GPU hangs:
dmesg |grep "gpu hang"
[   29.887899] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
[   29.888006] drm/i915: Resetting chip after gpu hang
[   51.904060] drm/i915: Resetting chip after gpu hang

Expected result:
----------------
2. No GPU hang

Info
----
Crash dump is empty
ll /sys/class/drm/card0/error
-rw------- 1 root root 0 Oct 14 11:47 /sys/class/drm/card0/error
Comment 1 Chris Wilson 2016-10-14 08:15:49 UTC 
If you are running in a non-default setup, please do clearly indicate that in the summary - unless you also reproduce on the defaults.
Comment 2 yann 2016-10-14 08:16:33 UTC 
Christophe, this is expected to have a size of 0 since dump is done dynamically. So please use the following to get it:
cat /sys/class/drm/card0/error | gzip > error.gz
Comment 3 Chris Wilson 2016-10-14 08:18:22 UTC 
You ran hang tests....

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