[drlvm][jit] Known/proven race conditions markup at \vm\vmcore\src\jit\jit_runtime_support.cpp(L367,
L369)
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Key: HARMONY-3858
URL: https://issues.apache.org/jira/browse/HARMONY-3858
Project: Harmony
Issue Type: Bug
Components: DRLVM
Reporter: Ilya Leviev
Priority: Minor
Attachments: HARMONY-3858_add_markup.patch
There are thread unsafe access that result in race condition that occur during concurrent
execution of rth_update_checkcast_stats function
If it not affect correctness of execution I have marked it by special API for prevention of
further alarms on this race.
Write -> Write data-race
Memory write at "jit_runtime_support.cpp":367 conflicts with a prior memory write at "jit_runtime_support.cpp":367
Stack Traces1:
Context
Function vm_invoke_native_array_stub "ini_ia32.cpp":76
Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
Function m2n_free_local_handles "m2n_ia32.cpp":268
Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
Function m2n_free_local_handles "m2n_ia32.cpp":268
Function hythread_thin_monitor_try_enter "thread_native_thin_monitor.c":341
Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
Function jthread_monitor_enter "thread_java_monitors.c":157
Function m2n_free_local_handles "m2n_ia32.cpp":268
Function rth_update_checkcast_stats "jit_runtime_support.cpp":366
1st Access
Function void JIT_execute_method_default(void *,struct _jmethodID *,union jvalue *,union
jvalue *) "ini_ia32.cpp":199
Function vm_invoke_native_array_stub "ini_ia32.cpp":76
Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
Function m2n_free_local_handles "m2n_ia32.cpp":268
Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
Function m2n_free_local_handles "m2n_ia32.cpp":268
Function hythread_thin_monitor_try_enter "thread_native_thin_monitor.c":341
Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
Function m2n_free_local_handles "m2n_ia32.cpp":268
Function rth_update_checkcast_stats "jit_runtime_support.cpp":367
2nd Access
Function vm_invoke_native_array_stub "ini_ia32.cpp":76
Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
Function m2n_free_local_handles "m2n_ia32.cpp":268
Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
Function m2n_free_local_handles "m2n_ia32.cpp":268
Function hythread_thin_monitor_try_enter "thread_native_thin_monitor.c":341
Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
Function jthread_monitor_enter "thread_java_monitors.c":157
Function m2n_free_local_handles "m2n_ia32.cpp":268
Function rth_update_checkcast_stats "jit_runtime_support.cpp":367
"" "365" "" " static void rth_update_checkcast_stats(ManagedObject* o, Class* super)"
"0x890F0" "366" "" " {"
"0x89107" "367" "*" " VM_Statistics::get_vm_stats().num_checkcast ++;"
"0x8912A" "368" "" " if (o == (ManagedObject*)VM_Global_State::loader_env->managed_null)
{"
"0x8913B" "369" "*" " VM_Statistics::get_vm_stats().num_checkcast_null++;"
"0x8915E" "370" "" " } else {"
"0x89160" "371" "" " if (o->vt()->clss == super)"
Write -> Write data-race
Memory write at "jit_runtime_support.cpp":369 conflicts with a prior memory write at "jit_runtime_support.cpp":369
Stack Traces 2:
Context
Function m2n_free_local_handles "m2n_ia32.cpp":268
Function vm_get_gc_thread_local "c_interface.cpp":2334
Function gc_alloc_fast "gc_for_vm.cpp":178
Function vm_get_gc_thread_local "c_interface.cpp":2334
Function gc_alloc_fast "gc_for_vm.cpp":178
Function is_class_initialized "jit_runtime_support.cpp":702
Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
Function hythread_suspend_disable "hythread_ext.h":421
Function m2n_pop_local_handles "m2n_ia32.cpp":257
Function rth_update_checkcast_stats "jit_runtime_support.cpp":366
1st Access
Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
Function hythread_self "hythread.h":465
Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
Function m2n_free_local_handles "m2n_ia32.cpp":268
Function hythread_self "hythread.h":465
Function vm_get_gc_thread_local "c_interface.cpp":2334
Function gc_alloc_fast "gc_for_vm.cpp":178
Function rth_get_interface_vtable "jit_runtime_support.cpp":651
Function hythread_self "hythread.h":465
Function rth_update_checkcast_stats "jit_runtime_support.cpp":369
2nd Access
Function m2n_free_local_handles "m2n_ia32.cpp":268
Function vm_get_gc_thread_local "c_interface.cpp":2334
Function gc_alloc_fast "gc_for_vm.cpp":178
Function vm_get_gc_thread_local "c_interface.cpp":2334
Function gc_alloc_fast "gc_for_vm.cpp":178
Function is_class_initialized "jit_runtime_support.cpp":702
Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
Function hythread_suspend_disable "hythread_ext.h":421
Function m2n_pop_local_handles "m2n_ia32.cpp":257
Function rth_update_checkcast_stats "jit_runtime_support.cpp":369
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