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From "Ilya Leviev (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-4025) [drlvm][jit][tc]Known/proven race conditions markup at vmcore\src\jit\jit_runtime_support.cpp at rth_type_test_update_stats and rth_update_instanceof_stats functions
Date Fri, 01 Jun 2007 12:32:16 GMT
[drlvm][jit][tc]Known/proven race conditions markup at vmcore\src\jit\jit_runtime_support.cpp
at rth_type_test_update_stats and rth_update_instanceof_stats functions
---------------------------------------------------------------------------------------------------------------------------------------------------------------------

                 Key: HARMONY-4025
                 URL: https://issues.apache.org/jira/browse/HARMONY-4025
             Project: Harmony
          Issue Type: Bug
          Components: DRLVM
            Reporter: Ilya Leviev


Known/proven race conditions markup at vmcore\src\jit\jit_runtime_support.cpp at rth_type_test_update_stats
and rth_update_instanceof_stats functions

TC report on thread unsafe access that result in race conditions that occur during execution
of rth_type_test_update_stats and rth_update_instanceof_stats functions


Data-races: 

Memory read at "jit_runtime_support.cpp":351 conflicts with a prior memory write at "jit_runtime_support.cpp":351
Memory read at "jit_runtime_support.cpp":353 conflicts with a prior memory write at "jit_runtime_support.cpp":353
Memory write at "jit_runtime_support.cpp":355 conflicts with a prior memory write at "jit_runtime_support.cpp":355

Memory read at "jit_runtime_support.cpp":388 conflicts with a prior memory write at "jit_runtime_support.cpp":388
Memory read at "jit_runtime_support.cpp":390 conflicts with a prior memory write at "jit_runtime_support.cpp":390


As issues related to vm statistic data collection in debug mode and it not affect correctness
of execution I mark it by special API for prevention of further alarms on this race. 




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