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Issue 728968 link

Starred by 1 user
Status: WontFix
Owner:
capn@chromium.org
Closed: Jul 2017
Cc:
█ msrchandra@chromium.org
sugoi@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Data race in sw::Surface::clearStencil

Project Member Reported by ClusterFuzz, Jun 2 2017 
Detailed report: https://clusterfuzz.com/testcase?key=6236906915627008

Fuzzer: inferno_twister_c
Job Type: linux_tsan_chrome_mp
Platform Id: linux

Crash Type: Data race WRITE 4
Crash Address: 0x7b40000012ac
Crash State:
  sw::Surface::clearStencil
  es2::Device::clearStencil
  es2::Context::clear
  
Sanitizer: thread (TSAN)

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6236906915627008


Issue filed automatically.

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

Comment 1 by msrchandra@chromium.org, Jun 5 2017

Cc: msrchandra@chromium.org
Components: Internals>GPU>SwiftShader
Labels: M-60 Test-Predator-Correct-CLs
Owner: npm@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 1074 of file Surface.cpp, which is stack frame 0. 

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 253 of file Device.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 3295 of file Context.cpp, which is stack frame 2. 

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 703 of file libGLESv2.cpp, which is stack frame 3. 

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 455 of file main.cpp, which is stack frame 4. 

Author: sievers
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src/+/dc3ca7cc1ca0c67c7cd454ffa8db137a0066de1c
Time: Thu Jan 15 02:02:26 2015
The CL last changed line 2678 of file gl_bindings_autogen_gl.cc, which is stack frame 5. 

Author: Geoff Lang
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src/+/ceb64f73f7bf1e1ae1914970c9adc455f564a1e9
Time: Mon Jan 30 17:02:53 2017
The CL last changed line 423 of file gl_gl_api_implementation.cc, which is stack frame 6.

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

Comment 2 by npm@chromium.org, Jun 6 2017

Owner: capn@chromium.org
Project Member

Comment 3 by ClusterFuzz, Jul 7 2017

Status: WontFix (was: Assigned)
ClusterFuzz testcase 6236906915627008 is flaky and no longer reproduces, so closing issue.

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

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