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Starred by 2 users

Issue metadata

Status: Duplicate
Merged: issue 702695
Owner:
Closed: Apr 2017
Components:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: ----
Type: ----



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SIGILL in layout tests on Mac

Project Member Reported by yutak@chromium.org, Feb 28 2017

Issue description

The following test is failing on various Mac:

https://test-results.appspot.com/dashboards/flakiness_dashboard.html#testType=webkit_tests&showExpectations=true&tests=custom-properties%2Fregister-property-syntax-parsing.html

crash log for renderer (pid <unknown>):
STDOUT: #CRASHED - renderer
STDERR: Received signal 4 <unknown> 00010fdd628c
STDERR:  [0x00010de627ec]
STDERR:  [0x00010de626e1]
STDERR:  [0x7fffeaaa6bba]
STDERR:  [0x000000000000]
STDERR:  [0x00010fb2aa36]
STDERR:  [0x00010d3d3271]
STDERR:  [0x00010d4545dc]
STDERR:  [0x00010d453b9d]
STDERR:  [0x2f625b10437d]
STDERR: [end of stack trace]

Signal 4 is SIGILL
(see https://developer.apple.com/legacy/library/documentation/Darwin/Reference/ManPages/man3/signal.3.html)

The regression range contains following clang roll:
https://chromium.googlesource.com/chromium/src/+/4d3a24b0257cb96368b91fb006893c69d296e121

Seems like the new clang miscompile something here.
 

Comment 1 by yutak@chromium.org, Feb 28 2017

Labels: OS-Mac
Summary: SIGILL in layout tests on Mac (was: SIGILL on layout tests)

Comment 4 by yutak@chromium.org, Feb 28 2017

(SIGILL may mean assertion failure, but I assume some diagnosis is printed on
 stdout or stderr in that case.)

Comment 5 by yutak@chromium.org, Feb 28 2017

Updating TestExpectations: https://codereview.chromium.org/2724553002
Project Member

Comment 6 by bugdroid1@chromium.org, Feb 28 2017

Labels: -Sheriff-Chromium
removing sheriff label given this has an owner.
Mergedinto: 702695
Status: Duplicate (was: Assigned)
Can you CC me on the bug? I don't have permission to see it.

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