Created attachment 117689 [details]
dmesg

Platform: SKY LAKE Y A0
CPU : Intel(R) Core(TM) m3-6Y30 CPU @ 0.8GHz 4MB (family: 6, model: 78  stepping: 3)
MCP : SKL-Y  D1  2+2
QDF : QVY3 
CPU : SKL D1
Chipset PCH: Sunrise Point LP C1       
CRB : SKY LAKE Y LPDDR3 RVP3 CRB FAB2
Reworks : All Mandatories + FBS02 & FBS03, O-06
Software
BIOS : SKLSE2R1.R00.X093.B02.1507222151
ME FW : 11.0.0.1157
Ksc (EC FW): 1.15
Linux distribution: Ubuntu 14.04 LTS 64 bits
Kernel : drm-intel-nightly 308b72e08b237aa7cde758fc44f88851710e417d 4.2.0-rc5 from git://anongit.freedesktop.org/drm-intel 
Mesa: mesa-10.6.3 ddc976368fef367e464472ebcc2ac4fd89eb9fd8 from http://cgit.freedesktop.org/mesa/mesa/
Xf86_video_intel: 2.99.917 baec802b21387d04aebb10ac29e719a1800c5aa0 from http://cgit.freedesktop.org/xorg/driver/xf86-video-intel/
Libdrm: libdrm-2.4.62 ba4b5ac010ab85406ec52e3906e13d58cd9aa782 from http://cgit.freedesktop.org/mesa/drm/
Cairo: 1.14.2 from 93422b3cb5e0ef8104b8194c8873124ce2f5ea2d http://cgit.freedesktop.org/cairo
libva: libva-1.6.0 a8008998bc0d4a76ae6927607c048e52ba50fd0e from http://cgit.freedesktop.org/libva/
intel-driver: 1.6.0 32268c46d538667d437dc9266aa4c183e51c1286 from http://cgit.freedesktop.org/vaapi/intel-driver
Xserver: xorg-server-1.17.2 2123f7682d522619f101b05fb75efa75dabbe371 from http://cgit.freedesktop.org/xorg/xserver

IGT: 1.11-g5c07135 from http://cgit.freedesktop.org/xorg/app/intel-gpu-tools/ 

Kernel commit log:
commit cbad75dd043b82a0684e94fe3b5f994fe0c3414b
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Tue Aug 11 12:08:05 2015 +0200
drm-intel-nightly: 2015y-08m-11d-10h-07m-28s UTC integration manifest
------------

Steps:
------
Execute igt test (as root):
./gem_reloc_vs_gpu --run-subtest forked-thrash-inactive-hang


Test Result:
------------
IGT-Version: 1.11-g5c07135 (x86_64) (Linux: 4.2.0-rc2-drm-intel-nightly-ww32-bisect1+ x86_64)
Test assertion failure function do_test, file gem_reloc_vs_gpu.c:240:
Failed assertion: test == 0xdeadbeef
mismatch in buffer 1: 0x00000000 instead of 0xdeadbeef
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [do_test+0x946]
  #2 [__real_main303+0x4f9]
  #3 [main+0x29]
  #4 [__libc_start_main+0xf5]
  #5 [_start+0x29]
  #6 [<unknown>+0x29]
Test assertion failure function gem_execbuf, file ioctl_wrappers.c:445:
Failed assertion: result == 0
Last errno: 5, Input/output error
Test assertion failure function intel_batchbuffer_flush_on_ring, file intel_batchbuffer.c:184:
Failed assertion: (drm_intel_gem_bo_context_exec(batch->bo, ctx, used, ring)) == 0
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [gem_mmap__gtt+0x0]
  #2 [do_test+0x545]
  #3 [__real_main303+0x4f9]
  #4 [main+0x29]
  #5 [__libc_start_main+0xf5]
  #6 [_start+0x29]
  #7 [<unknown>+0x29]
Last errno: 5, Input/output error
Test assertion failure function gem_execbuf, file ioctl_wrappers.c:445:
Failed assertion: result == 0
Last errno: 5, Input/output error
Test assertion failure function gem_execbuf, file ioctl_wrappers.c:445:
Failed assertion: result == 0
Last errno: 5, Input/output error
Test assertion failure function gem_execbuf, file ioctl_wrappers.c:445:
Failed assertion: result == 0
Last errno: 5, Input/output error
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [intel_batchbuffer_flush_on_ring+0xc5]
  #2 [do_test+0x3f5]
  #3 [__real_main303+0x4f9]
  #4 [main+0x29]
  #5 [__libc_start_main+0xf5]
  #6 [_start+0x29]
  #7 [<unknown>+0x29]
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [gem_mmap__gtt+0x0]
  #2 [do_test+0x545]
  #3 [__real_main303+0x4f9]
  #4 [main+0x29]
  #5 [__libc_start_main+0xf5]
  #6 [_start+0x29]
  #7 [<unknown>+0x29]
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [gem_mmap__gtt+0x0]
  #2 [igt_hang_ring+0x16b]
  #3 [bcs_hang+0xe]
  #4 [do_test+0x412]
  #5 [__real_main303+0x4f9]
  #6 [main+0x29]
  #7 [__libc_start_main+0xf5]
  #8 [_start+0x29]
  #9 [<unknown>+0x29]
Test assertion failure function gem_execbuf, file ioctl_wrappers.c:445:
Failed assertion: result == 0
Last errno: 5, Input/output error
Test assertion failure function gem_execbuf, file ioctl_wrappers.c:445:
Failed assertion: result == 0
Last errno: 5, Input/output error
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [gem_mmap__gtt+0x0]
  #2 [igt_hang_ring+0x16b]
  #3 [bcs_hang+0xe]
  #4 [do_test+0x412]
  #5 [__real_main303+0x4f9]
  #6 [main+0x29]
  #7 [__libc_start_main+0xf5]
  #8 [_start+0x29]
  #9 [<unknown>+0x29]
Test assertion failure function intel_batchbuffer_flush_on_ring, file intel_batchbuffer.c:184:
Failed assertion: (drm_intel_gem_bo_context_exec(batch->bo, ctx, used, ring)) == 0
Last errno: 5, Input/output error
Test assertion failure function gem_execbuf, file ioctl_wrappers.c:445:
Failed assertion: result == 0
Last errno: 5, Input/output error
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [gem_mmap__gtt+0x0]
  #2 [igt_hang_ring+0x16b]
  #3 [bcs_hang+0xe]
  #4 [do_test+0x412]
  #5 [__real_main303+0x4f9]
  #6 [main+0x29]
  #7 [__libc_start_main+0xf5]
  #8 [_start+0x29]
  #9 [<unknown>+0x29]
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [gem_mmap__gtt+0x0]
  #2 [igt_hang_ring+0x16b]
  #3 [bcs_hang+0xe]
  #4 [do_test+0x412]
  #5 [__real_main303+0x4f9]
  #6 [main+0x29]
  #7 [__libc_start_main+0xf5]
  #8 [_start+0x29]
  #9 [<unknown>+0x29]
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [intel_batchbuffer_flush_on_ring+0xc5]
  #2 [do_test+0x3f5]
  #3 [__real_main303+0x4f9]
  #4 [main+0x29]
  #5 [__libc_start_main+0xf5]
  #6 [_start+0x29]
  #7 [<unknown>+0x29]
Test assertion failure function intel_batchbuffer_flush_on_ring, file intel_batchbuffer.c:184:
Failed assertion: (drm_intel_gem_bo_context_exec(batch->bo, ctx, used, ring)) == 0
Last errno: 5, Input/output error
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [gem_mmap__gtt+0x0]
  #2 [igt_hang_ring+0x16b]
  #3 [bcs_hang+0xe]
  #4 [do_test+0x412]
  #5 [__real_main303+0x4f9]
  #6 [main+0x29]
  #7 [__libc_start_main+0xf5]
  #8 [_start+0x29]
  #9 [<unknown>+0x29]
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [intel_batchbuffer_flush_on_ring+0xc5]
  #2 [do_test+0x3f5]
  #3 [__real_main303+0x4f9]
  #4 [main+0x29]
  #5 [__libc_start_main+0xf5]
  #6 [_start+0x29]
  #7 [<unknown>+0x29]
Test assertion failure function intel_batchbuffer_flush_on_ring, file intel_batchbuffer.c:184:
Failed assertion: (drm_intel_gem_bo_context_exec(batch->bo, ctx, used, ring)) == 0
Last errno: 5, Input/output error
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [intel_batchbuffer_flush_on_ring+0xc5]
  #2 [do_test+0x3f5]
  #3 [__real_main303+0x4f9]
  #4 [main+0x29]
  #5 [__libc_start_main+0xf5]
  #6 [_start+0x29]
  #7 [<unknown>+0x29]
Test assertion failure function gem_execbuf, file ioctl_wrappers.c:445:
Failed assertion: result == 0
Last errno: 5, Input/output error
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [gem_mmap__gtt+0x0]
  #2 [do_test+0x545]
  #3 [__real_main303+0x4f9]
  #4 [main+0x29]
  #5 [__libc_start_main+0xf5]
  #6 [_start+0x29]
  #7 [<unknown>+0x29]
Test assertion failure function intel_batchbuffer_flush_on_ring, file intel_batchbuffer.c:184:
Failed assertion: (drm_intel_gem_bo_context_exec(batch->bo, ctx, used, ring)) == 0
Last errno: 5, Input/output error
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [intel_batchbuffer_flush_on_ring+0xc5]
  #2 [do_test+0x3f5]
  #3 [__real_main303+0x4f9]
  #4 [main+0x29]
  #5 [__libc_start_main+0xf5]
  #6 [_start+0x29]
  #7 [<unknown>+0x29]
Test assertion failure function intel_batchbuffer_flush_on_ring, file intel_batchbuffer.c:184:
Failed assertion: (drm_intel_gem_bo_context_exec(batch->bo, ctx, used, ring)) == 0
Last errno: 5, Input/output error
Test assertion failure function gem_execbuf, file ioctl_wrappers.c:445:
Failed assertion: result == 0
Last errno: 5, Input/output error
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [intel_batchbuffer_flush_on_ring+0xc5]
  #2 [do_test+0x3f5]
  #3 [__real_main303+0x4f9]
  #4 [main+0x29]
  #5 [__libc_start_main+0xf5]
  #6 [_start+0x29]
  #7 [<unknown>+0x29]
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [gem_mmap__gtt+0x0]
  #2 [igt_hang_ring+0x16b]
  #3 [bcs_hang+0xe]
  #4 [do_test+0x412]
  #5 [__real_main303+0x4f9]
  #6 [main+0x29]
  #7 [__libc_start_main+0xf5]
  #8 [_start+0x29]
  #9 [<unknown>+0x29]
Subtest forked-thrash-inactive-hang failed.
**** DEBUG ****
Test requirement passed: has_ban_period
Test requirement passed: has_gpu_reset(fd)
****  END  ****
child 0 failed with exit status 99
Subtest forked-thrash-inactive-hang: FAIL (299.756s)
Test assertion failure function gem_quiescent_gpu, file drmtest.c:171:
Failed assertion: drmIoctl((fd), ((((1U) << (((0+8)+8)+14)) | ((('d')) << (0+8)) | (((0x40 + 0x29)) << 0) | ((((sizeof(struct drm_i915_gem_execbuffer2)))) << ((0+8)+8)))), (&execbuf)) == 0
Last errno: 5, Input/output error