You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@harmony.apache.org by "Alexey Varlamov (JIRA)" <ji...@apache.org> on 2007/06/01 11:02:16 UTC
[jira] Assigned: (HARMONY-3858) [drlvm][jit] Known/proven race
conditions markup at \vm\vmcore\src\jit\jit_runtime_support.cpp(L367, L374)
[ https://issues.apache.org/jira/browse/HARMONY-3858?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexey Varlamov reassigned HARMONY-3858:
----------------------------------------
Assignee: Alexey Varlamov
> [drlvm][jit] Known/proven race conditions markup at \vm\vmcore\src\jit\jit_runtime_support.cpp(L367, L374)
> ----------------------------------------------------------------------------------------------------------
>
> Key: HARMONY-3858
> URL: https://issues.apache.org/jira/browse/HARMONY-3858
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Ilya Leviev
> Assignee: Alexey Varlamov
> Priority: Minor
> Attachments: HARMONY-3858_add_markup.patch, screenshot-1.jpg
>
>
> There are thread unsafe access that result in race condition that occur during concurrent execution of rth_update_checkcast_stats function
> As issues related to vm statistic data collection and it not affect correctness of execution I mark 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
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.