Created attachment 126798 [details] dmesg Description ========================================== gem_exec_flush some subtests are failing Software Configuration =========================================== drm: commit: 0659558f6418693ad203b5de2f1bc4fa9f28708e mesa: commit: 8b06176f310f65628ce136b90a99005278ba5e0d cairo: commit: db8a7f1697c49ae4942d2aa49eed52dd73dd9c7a xorg-server-macros: commit: d7acec2d3a3abe79814ceb72e2c0d4d95ed31d37 xserver: commit: 3ef51c5c74297937002668b0c507fa88550db67e xf86-video-intel: commit: 15c5ff12459a034b552c787047d1af6d61047cd6 libva: commit: 7aa2dd979a3758e1f6378344b235595c5028a9e7 vaapi-intel-driver: commit: 36fbd817428d3a257f59bb1ca28ed491c3981616 piglit: commit: 1b071c6304dc69a3f754fd1196afde8f9688bb8e intel-gpu-tool: commit: 200237acac00f24730b0c5b4362936b6c510b0ed Hardware Configuration ============================================= Platform: Acer Aspire XC-603 CPU: Intel(R) Pentium(R) CPU J2900 @ 2.41GHz (family 6, model 55, stepping 8) Motherboard: Aspire XC-603 GPU: Intel® HD Graphics - Intel Corporation Atom Processor Z36xxx/Z37xxx Series Graphics & Display (rev 0e) Steps to reproduce ========================================= ./gem_exec_flush Test cases =========================================== gem_exec_flush@uc-prw-bsd-interruptible gem_exec_flush@wc-prw-blt-interruptible gem_exec_flush@basic-uc-prw-default gem_exec_flush@uc-prw-render gem_exec_flush@uc-prw-blt-interruptible gem_exec_flush@wc-prw-render-interruptible gem_exec_whisper@blt-fds-forked gem_exec_flush@stream-prw-default gem_exec_flush@uc-prw-default-interruptible gem_exec_flush@stream-prw-bsd-interruptible gem_exec_flush@wc-prw-bsd-interruptible gem_exec_flush@wc-prw-blt gem_exec_flush@stream-prw-default-interruptible gem_exec_flush@wc-prw-render gem_exec_flush@wc-prw-default gem_exec_flush@uc-prw-render-interruptible gem_exec_flush@uc-prw-blt gem_exec_flush@wc-prw-default-interruptible gem_exec_flush@stream-prw-blt-interruptible gem_exec_flush@stream-prw-bsd gem_exec_flush@stream-prw-blt gem_exec_flush@stream-prw-render gem_exec_flush@stream-prw-render-interruptible gem_exec_flush@uc-prw-bsd gem_exec_flush@wc-prw-bsd IGT output ============================================ (gem_exec_flush:13510) CRITICAL: Test assertion failure function run, file gem_exec_flush.c:278: (gem_exec_flush:13510) CRITICAL: Failed assertion: val == i (gem_exec_flush:13510) CRITICAL: error: 0xabcdabcd != 0x1d1 Stack trace: #0 [__igt_fail_assert+0xf1] #1 [run+0x891] #2 [__real_main533+0xb11] #3 [main+0x29] #4 [__libc_start_main+0xf0] #5 [_start+0x29] (gem_exec_flush:13508) CRITICAL: Test assertion failure function run, file gem_exec_flush.c:276: #6 [<unknown>+0x29] (gem_exec_flush:13509) CRITICAL: Test assertion failure function run, file gem_exec_flush.c:276: (gem_exec_flush:13509) CRITICAL: Failed assertion: val == i ^ 0xffffffff (gem_exec_flush:13509) CRITICAL: error: 0xdeadbeef != 0xffffffad Stack trace: (gem_exec_flush:13508) CRITICAL: Failed assertion: val == i ^ 0xffffffff (gem_exec_flush:13508) CRITICAL: error: 0xdeadbeef != 0xffffff7d Stack trace: child 2 failed with exit status 99 #0 [__igt_fail_assert+0xf1] Subtest basic-uc-prw-default failed. No log. Attachments ======================================== dmesg
the following subtest fail with the following configuration : Software information ============================================ Kernel version : 4.8.0-rc8-nightly+ (0e34cb5b35f0) Linux distribution : Ubuntu 16.04.1 LTS Architecture : 64-bit DRM version : 2.4.70 (0659558) Cairo version : 1.15.2 (db8a7f1) Intel GPU Tools version : intel-gpu-tools-1.16-22-g200237a Bios revision : 5.6 Bios release date : 06/06/2016 Hardware information ============================================ Platform : BSW Motherboard type : NUC5i3RYB Desktop CPU family : Core i3 CPU information : Intel(R) Core(TM) i3-5010U CPU @ 2.10GHz GPU Card : Intel Corporation Broadwell-U Integrated Graphics (rev 09) (prog-if 00 [VGA controller]) Memory ram : 8 GB Maximum memory ram allowed : 16 GB CPU thread : 4 CPU core : 2 Socket : Socket BGA1168 Signature : Type 0, Family 6, Model 61, Stepping 4 subtest ============================================== igt@gem_exec_flush@uc-rw-before-render-interruptible igt@gem_exec_flush@uc-rw-before-render igt@gem_exec_flush@uc-ro-before-vebox igt@gem_exec_flush@uc-rw-before-blt igt@gem_exec_flush@uc-rw-before-bsd-interruptible igt@gem_exec_flush@uc-ro-before-default-interruptible igt@gem_exec_flush@uc-rw-before-default igt@gem_exec_flush@uc-rw-before-bsd igt@gem_exec_flush@uc-ro-before-default igt@gem_exec_flush@uc-rw-before-vebox igt@gem_exec_flush@uc-ro-before-render-interruptible igt@gem_exec_flush@uc-ro-before-bsd igt@gem_exec_flush@uc-ro-before-blt igt@gem_exec_flush@uc-ro-before-render igt@gem_exec_flush@uc-ro-before-blt-interruptible
The good old clflush is mysteriously broken bug.
I reported a new bug to track separately the basic subtest: bug 98109
Hmm, for the moment it looks solid following the clflush w/a and recent test fix for byt (and earlier with shared global gtt).
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