Bug 92259

Created attachment 118631 [details]
dmesg

==System Environment==
--------------------------
Platform:  SKL-Y

==kernel==
--------------------------
4.3.0-rc2-drm-intel-nightly+


==Bug detailed description==
-----------------------------
gem_concurrent_blit@cpu-render-early-read-forked fail 

IGT-Version: 1.12-g1f9e055 (x86_64) (Linux: 4.3.0-rc2-drm-intel-nightly+ x86_64)
using 2x512 buffers, each 1MiB
Test assertion failure function cpu_cmp_bo, file gem_concurrent_all.c:222:
Failed assertion: *vaddr++ == val
Test assertion failure function cpu_cmp_bo, file gem_concurrent_all.c:222:
Failed assertion: *vaddr++ == val
Last errno: 11, Resource temporarily unavailable
error: 0 != 0xdeadbeef
Stack trace:
Last errno: 11, Resource temporarily unavailable
error: 0 != 0xdeadbeef
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #0 [__igt_fail_assert+0xf1]
  #1 [cpu_cmp_bo+0x7b]
  #1 [cpu_cmp_bo+0x7b]
  #2 [do_early_read+0xd3]
  #2 [do_early_read+0xd3]
  #3 [run_forked+0xba]
  #3 [run_forked+0xba]
  #4 [run_basic_modes+0xbbf]
  #4 [run_basic_modes+0xbbf]
  #5 [__real_main1065+0x14e]
  #5 [__real_main1065+0x14e]
  #6 [main+0x29]
  #6 [main+0x29]
  #7 [__libc_start_main+0xf5]
  #7 [__libc_start_main+0xf5]
  #8 [_start+0x29]
  #8 [_start+0x29]
  #9 [<unknown>+0x29]
  #9 [<unknown>+0x29]
child 2 failed with exit status 99
Subtest cpu-render-early-read-forked failed.
**** DEBUG ****
Test requirement passed: rendercopy
****  END  ****
Subtest cpu-render-early-read-forked: FAIL (6.829s)

real    0m16.626s
user    0m0.238s
sys     0m1.550s


==System enviroment==
--------------------------

Kernel 4.3.0-rc2-drm-intel-nightly+
Mesa: mesa-10.6.7 from http://cgit.freedesktop.org/mesa/mesa/
Xf86_video_intel: 2.99.917 from
http://cgit.freedesktop.org/xorg/driver/xf86-video-intel/
Libdrm: libdrm-2.4.64 from http://cgit.freedesktop.org/mesa/drm/
Cairo: 1.14.2 from http://cgit.freedesktop.org/cairo
libva: libva-1.6.0 from http://cgit.freedesktop.org/libva/
intel-driver: 1.6.1. from http://cgit.freedesktop.org/vaapi/intel-driver
xorg: 1.17.99 installed with script git_xorg.sh
Xserver: xorg-server-1.17.2 from http://cgit.freedesktop.org/xorg/xserver
Intel-gpu-tools: 1.12 from http://cgit.freedesktop.org/xorg/app/intel-gpu

==Reproduce steps==
---------------------------- 
1. ./gem_concurrent_blit --run-subtest cpu-render-early-read-forked