Yunchao, do you mind taking a look at this?  It's pretty bad because it crashed the process.  I am not sure if the crash is from Chrome or driver (more likely driver).  Once we have some preliminary understanding of the bug, we should file a radar as soon as we can.

(I caught this on Mac Beta seed with HD 6000).

Let me know if you don't have this Mac on your side, then I'll try to find time to take a look.

Qiankun is investigating this issue.

These tests failed on MacOS Sierra 10.12.2 Beta (16C41b) with Intel Iris Pro graphics card and hung on MacOS Sierra 10.12.2 Beta (16C41b) with Intel HD graphics 515. They  both caused by doing "texImage2D(GL_RGB9_E5), then draw with the texture" twice. I didn't see crash on the above two platforms. I will write a radar description about this bug.

They triggered a crash on Intel HD 6000

Thanks Qiankun for the Radar description.

Filed as:
[Chrome GPU] Regression in OpenGL RGB9_E5 texture formats on Intel GPUs in 10.12.2 Beta
Radar 29259244

This is still crashing on public 10.12.2 (16C67)

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/441e2bf997a5a78a92c5b49b391b852e065713fa

commit 441e2bf997a5a78a92c5b49b391b852e065713fa
Author: kbr <kbr@chromium.org>
Date: Wed Jan 11 06:46:15 2017

Switch Mac Intel GPU jobs to target 10.12 bots instead of 10.10.

BUG= 679607 ,  663188 
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel;master.tryserver.chromium.android:android_optional_gpu_tests_rel
TBR=zmo@chromium.org
NOTRY=true

Review-Url: https://codereview.chromium.org/2627553002
Cr-Commit-Position: refs/heads/master@{#442828}

[modify] https://crrev.com/441e2bf997a5a78a92c5b49b391b852e065713fa/content/test/gpu/generate_buildbot_json.py
[modify] https://crrev.com/441e2bf997a5a78a92c5b49b391b852e065713fa/content/test/gpu/gpu_tests/test_expectations.py
[modify] https://crrev.com/441e2bf997a5a78a92c5b49b391b852e065713fa/content/test/gpu/gpu_tests/webgl2_conformance_expectations.py
[modify] https://crrev.com/441e2bf997a5a78a92c5b49b391b852e065713fa/testing/buildbot/chromium.gpu.fyi.json
[modify] https://crrev.com/441e2bf997a5a78a92c5b49b391b852e065713fa/testing/buildbot/chromium.gpu.json

This is fixed in 10.12.2 beta.  We need to upgrade the bots and remove the conformance expectations.

I mean 10.12.4 beta

The assigned owner "qiankun.miao@intel.com" is not able to receive e-mails, please re-triage.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Blocking on completion of the 10.12.4 upgrade.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/1733d120eb79e2d8d49b18892e60ee1297f646f7

commit 1733d120eb79e2d8d49b18892e60ee1297f646f7
Author: zmo <zmo@chromium.org>
Date: Thu Jun 08 23:24:48 2017

Update WebGL2 conformance test expectations for Mac bots.

BUG= 598930 , 617290 , 618464 ,630800, 641149 , 643866 , 645298 , 646182 , 654187 , 663188 ,665197, 665656 , 676848 , 679682 , 679684 , 679686 , 679687 , 679689 , 679690 , 679691 , 680278 , 684903 
TEST=mac bots on GPU FYI waterfall
TBR=kbr@chromium.org,kainino@chromium.org
NOTRY=true
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel

Review-Url: https://codereview.chromium.org/2931993002
Cr-Commit-Position: refs/heads/master@{#478121}

[modify] https://crrev.com/1733d120eb79e2d8d49b18892e60ee1297f646f7/content/test/gpu/gpu_tests/webgl2_conformance_expectations.py