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Issue 759397 link

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Issue metadata

Status: WontFix
Owner: ----
Closed: Jan 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Mac
Pri: 2
Type: Bug



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pobfuzz: GrTessellator::PathToTriangle timeout

Project Member Reported by ClusterFuzz, Aug 27 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4793455288254464

Fuzzer: libFuzzer_paint_op_buffer_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Timeout (exceeds 25 secs)
Crash Address: 
Crash State:
  paint_op_buffer_fuzzer
  
Sanitizer: address (ASAN)

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4793455288254464

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md for more information.

Note: This crash might not be reproducible with the provided testcase. That said, for the past 14 days we've been seeing this crash frequently. If you are unable to reproduce this, please try a speculative fix based on the crash stacktrace in the report. The fix can be verified by looking at the crash statistics in the report, a day after the fix is deployed. If the fix resolved the issue, please close the bug by marking as Fixed.
 
Project Member

Comment 1 by ClusterFuzz, Aug 27 2017

Labels: OS-Mac
Cc: msrchandra@chromium.org
Components: Internals>GPU>Rasterization
Labels: Test-Predator-Correct-CLs
Owner: bcwh...@chromium.org
Status: Assigned (was: Untriaged)
Assigning to concern owner from Predator results --
Regression information is not available. The result is the blame information. 

Author: senorblanco
Project: chromium-skia
Changelist: https://skia.googlesource.com/skia.git/+/49df8d17c56ee08ecf860289d501913d356f67dc
Time: Fri Oct 07 08:36:56 2016 -0700
The CL last changed line 373 of file GrTessellator.cpp, which is stack frame 3. 

Author: Stephen White
Project: chromium-skia
Changelist: https://skia.googlesource.com/skia.git/+/64dbb89efc9daba9f62b4a385354a77aaa54861e
Time: Wed May 03 16:00:38 2017 -0400
The CL last changed line 1301 of file GrTessellator.cpp, which is stack frame 4. 

Author: Stephen White
Project: chromium-skia
Changelist: https://skia.googlesource.com/skia.git/+/0cb31675f3aa9cc878aa3a9e1a7ad09efdb350fc
Time: Thu Jun 08 14:41:01 2017 -0400
The CL last changed line 1751 of file GrTessellator.cpp, which is stack frame 5. 

Author: senorblanco
Project: chromium-skia
Changelist: https://skia.googlesource.com/skia.git/+/f57372daf0562a187c24d427366ac6d0cb980c9b
Time: Wed Aug 31 10:36:19 2016 -0700
The CL last changed line 1797 of file GrTessellator.cpp, which is stack frame 6. 

Author: senorblanco
Project: chromium-skia
Changelist: https://skia.googlesource.com/skia.git/+/f57372daf0562a187c24d427366ac6d0cb980c9b
Time: Wed Aug 31 10:36:19 2016 -0700
The CL last changed line 1864 of file GrTessellator.cpp, which is stack frame 7. 

Author: Brian Salomon
Project: chromium-skia
Changelist: https://skia.googlesource.com/skia.git/+/9530f7ebf529acce1d6e99fa40032bbf13826a03
Time: Tue Jul 11 09:03:10 2017 -0400
The CL last changed line 291 of file GrTessellatingPathRenderer.cpp, which is stack frame 8. 

Author: senorblanco
Project: chromium-skia
Changelist: https://skia.googlesource.com/skia.git/+/f57372daf0562a187c24d427366ac6d0cb980c9b
Time: Wed Aug 31 10:36:19 2016 -0700
The CL last changed line 331 of file GrTessellatingPathRenderer.cpp, which is stack frame 9.

Suspecting Commit#
https://skia.googlesource.com/skia.git/+/0cb31675f3aa9cc878aa3a9e1a7ad09efdb350fc

@bcwhite -- Could you please look into the issue, kindly re-assign if this is not related to your changes.
Thank You.
Owner: senorblanco@chromium.org
I'm guessing this was assigned to the wrong "White".  :-)

Comment 4 by enne@chromium.org, Aug 28 2017

Labels: -Pri-1 Pri-2

Comment 5 by enne@chromium.org, Sep 7 2017

Cc: senorblanco@chromium.org bsalomon@chromium.org
Owner: ----
Status: Available (was: Assigned)
Summary: pobfuzz: GrTessellator::PathToTriangle timeout (was: Timeout in paint_op_buffer_fuzzer)

Comment 6 by enne@chromium.org, Sep 7 2017

Components: -Internals>GPU>Rasterization Internals>Skia

Comment 7 by mmoroz@chromium.org, Oct 24 2017

For more information, please see https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md.

The link referenced in the description is no longer valid.
Project Member

Comment 8 by ClusterFuzz, Jan 27 2018

Status: WontFix (was: Available)
ClusterFuzz testcase 4793455288254464 is flaky and no longer crashes, so closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.

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