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Issue 711849 link

Starred by 1 user
Status: Duplicate
Merged: issue 710753
Owner:
capn@chromium.org
Closed: Apr 2017
Cc:
█ msrchandra@chromium.org
█ jbau...@chromium.org
sugoi@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 3
Type: Bug



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Data race in sw::Surface::resolve

Project Member Reported by ClusterFuzz, Apr 15 2017

Comment 1 by msrchandra@chromium.org, Apr 17 2017

Cc: msrchandra@chromium.org
Components: Internals>GPU>SwiftShader
Labels: Test-Predator-Correct-CLs M-58
Owner: jbau...@chromium.org
Status: Assigned (was: Untriaged)
Assigning to the concern owner from Predator results --
Regression information is not available. The result is the blame information. 

Author: John Bauman
Project: chromium-swiftshader
Changelist: https://swiftshader.googlesource.com/SwiftShader.git/+/894018228b0e0bdbd7aa7e8f47d4a9458789ca82
Time: Tue May 06 15:04:28 2014 -0400
The CL last changed line 1072 of file Surface.cpp, which is stack frame 0. 

Author: John Bauman
Project: chromium-swiftshader
Changelist: https://swiftshader.googlesource.com/SwiftShader.git/+/894018228b0e0bdbd7aa7e8f47d4a9458789ca82
Time: Tue May 06 15:04:28 2014 -0400
The CL last changed line 1417 of file Surface.cpp, which is stack frame 1. 

Author: Nicolas Capens
Project: chromium-swiftshader
Changelist: https://swiftshader.googlesource.com/SwiftShader.git/+/0bac285a78df6a6d7a6b68784748b92805420ffb
Time: Sat May 07 06:09:58 2016 -0400
The CL last changed line 640 of file Device.cpp, which is stack frame 2. 

Author: Alexis Hetu
Project: chromium-swiftshader
Changelist: https://swiftshader.googlesource.com/SwiftShader.git/+/b9dda64e0e31dc5ac3eb7a19948062385a097cdb
Time: Thu Oct 06 11:25:32 2016 -0400
The CL last changed line 4087 of file Context.cpp, which is stack frame 3. 

Author: Alexis Hetu
Project: chromium-swiftshader
Changelist: https://swiftshader.googlesource.com/SwiftShader.git/+/b9dda64e0e31dc5ac3eb7a19948062385a097cdb
Time: Thu Oct 06 11:25:32 2016 -0400
The CL last changed line 6220 of file libGLESv2.cpp, which is stack frame 4. 

Author: Alexis Hetu
Project: chromium-swiftshader
Changelist: https://swiftshader.googlesource.com/SwiftShader.git/+/b9dda64e0e31dc5ac3eb7a19948062385a097cdb
Time: Thu Oct 06 11:25:32 2016 -0400
The CL last changed line 6238 of file libGLESv2.cpp, which is stack frame 5. 

Author: Nicolas Capens
Project: chromium-swiftshader
Changelist: https://swiftshader.googlesource.com/SwiftShader.git/+/0bac285a78df6a6d7a6b68784748b92805420ffb
Time: Sat May 07 06:09:58 2016 -0400
The CL last changed line 1286 of file main.cpp, which is stack frame 6.

@John Bauman -- Could you please look into the issue, kindly re-assign if this is not related to your changes.
Thank You.

Comment 2 by jbau...@chromium.org, Apr 17 2017

Cc: jbau...@chromium.org
Owner: capn@chromium.org

Comment 3 by capn@chromium.org, Apr 18 2017

Labels: -Pri-2 Pri-3
Mergedinto: 710753
Status: Duplicate (was: Assigned)
Project Member

Comment 4 by ClusterFuzz, Jun 6 2017 

ClusterFuzz has detected this issue as fixed in range 477096:477113.

Detailed report: https://clusterfuzz.com/testcase?key=4515126008086528

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_tsan_chrome_mp
Platform Id: linux

Crash Type: Data race WRITE 4
Crash Address: 0x7b4000002374
Crash State:
  sw::Surface::resolve
  sw::Surface::lockInternal
  es2::Device::stretchRect
  
Sanitizer: thread (TSAN)

Fixed: https://clusterfuzz.com/revisions?job=linux_tsan_chrome_mp&range=477096:477113

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4515126008086528


See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.
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