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From "Ilya Leviev (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-4261) [drlvm][finalizer] Race conditions at "finalizer_thread.cpp":(68-77) at set_fin_thread_attached() and clear_fin_thread_attached() function on reliability test ClassReflectionTest
Date Thu, 21 Jun 2007 12:21:27 GMT
[drlvm][finalizer] Race conditions at "finalizer_thread.cpp":(68-77) at set_fin_thread_attached()
and clear_fin_thread_attached() function on reliability test ClassReflectionTest
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

                 Key: HARMONY-4261
                 URL: https://issues.apache.org/jira/browse/HARMONY-4261
             Project: Harmony
          Issue Type: Bug
          Components: DRLVM
            Reporter: Ilya Leviev


Race conditions at "finalizer_thread.cpp":(68-77) at set_fin_thread_attached() and clear_fin_thread_attached()
functions while reliability test ClassReflectionTest execution


TC report on thread unsafe access that result in race condition that occur during concurrent
execution of set_fin_thread_attached() and clear_fin_thread_attached() function


if it low priority issue I will mark it as expected race condition. 


Write -> Write data-race Memory write at "finalizer_thread.cpp":77 conflicts with a prior
memory write at "finalizer_thread.cpp":68


Stack Trace: 

Context
	Function EntryPoint "dllcrt0.c":323
	Function EntryPoint "crtexe.c":202
	Function EntryPoint "crtexe.c":398
	Function main "cmain.c":146
	Function gpProtectedMain "main.c":391
	Function invocation "main.c":668
	Function JNI_CreateJavaVM "jni.cpp":531
	Function finalizer_threads_init "finalizer_thread.cpp":125
	Function clear_fin_thread_attached "finalizer_thread.cpp":77

Definition
	Function EntryPoint "crtexe.c":398
	Function main "cmain.c":146
	Function gpProtectedMain "main.c":391
	Function invocation "main.c":668
	Function JNI_CreateJavaVM "jni.cpp":531
	Function finalizer_threads_init "finalizer_thread.cpp":96
	Function malloc "dbgheap.c":139
	Function nh_malloc_dbg "dbgheap.c":260
	Function heap_alloc_dbg "dbgheap.c":397
	Function heap_alloc_base "malloc.c":211

1st Access
	Function finalizer_threads_init "finalizer_thread.cpp":126
	Function hythread_create "thread_native_basic.c":165
	Function hythread_create_with_group "thread_native_basic.c":136
	Function os_thread_create "os_thread.c":37
	Function beginthreadex "threadex.c":145
	Function EntryPoint "dllcrt0.c":323
	Function threadstartex "threadex.c":241
	Function thread_start_proc "thread_native_basic.c":711
	Function finalizer_thread_func "finalizer_thread.cpp":228
	Function set_fin_thread_attached "finalizer_thread.cpp":68

	"67"	""	" static void set_fin_thread_attached(void)"
	"68"	"*"	" { fin_thread_info->thread_attached = 1; }"


2nd Access
	Function EntryPoint "dllcrt0.c":323
	Function EntryPoint "crtexe.c":202
	Function EntryPoint "crtexe.c":398
	Function main "cmain.c":146
	Function gpProtectedMain "main.c":391
	Function invocation "main.c":668
	Function JNI_CreateJavaVM "jni.cpp":531
	Function finalizer_threads_init "finalizer_thread.cpp":125
	Function clear_fin_thread_attached "finalizer_thread.cpp":77

	"76"	""	" static void clear_fin_thread_attached(void)"
	"77"	"*"	" { fin_thread_info->thread_attached = 0; }"



See also Source View screenshots. 




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