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Posted to commits@harmony.apache.org by "Gregory Shimansky (JIRA)" <ji...@apache.org> on 2007/05/23 16:47:17 UTC
[jira] Assigned: (HARMONY-3945) [drlvm][util] Known/proven race
conditions markup at "vm_strings.cpp":604
[ https://issues.apache.org/jira/browse/HARMONY-3945?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gregory Shimansky reassigned HARMONY-3945:
------------------------------------------
Assignee: Gregory Shimansky
> [drlvm][util] Known/proven race conditions markup at "vm_strings.cpp":604
> -------------------------------------------------------------------------
>
> Key: HARMONY-3945
> URL: https://issues.apache.org/jira/browse/HARMONY-3945
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Ilya Leviev
> Assigned To: Gregory Shimansky
> Attachments: HARMONY-3945_add_markup.patch, SourceViewScreenshot-1.jpg
>
>
> TC report on thread unsafe access that result in race condition that occur during concurrent execution of vm_instantiate_cp_string_slow functions.
> 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.
> Write -> Write data-race
> Memory write at "vm_strings.cpp":604 conflicts with a prior memory write at "vm_strings.cpp":604
> Stack Trace:
> Context
> Function int Jitrino::Jet::rt_h_dcmp_l(double,double) "arith_rt.cpp":110
> Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
> Function m2n_free_local_handles "m2n_ia32.cpp":268
> Function int Jitrino::Jet::rt_h_dcmp_l(double,double) "arith_rt.cpp":110
> Function vm_get_gc_thread_local "c_interface.cpp":2334
> Function gc_alloc_fast "gc_for_vm.cpp":178
> Function int Jitrino::Jet::rt_h_lcmp(__int64,__int64) "arith_rt.cpp":70
> Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
> Function rth_ldc_ref_helper "jit_runtime_support.cpp":163
> Function struct ManagedObject * vm_instantiate_cp_string_slow(struct Class *,unsigned int) "vm_strings.cpp":601
> 1st Access
> Function double Jitrino::Jet::rt_h_i64_2_dbl(__int64) "arith_rt.cpp":272
> Function double Jitrino::Jet::rt_h_flt_2_dbl(float) "arith_rt.cpp":294
> Function double Jitrino::Jet::rt_h_neg_dbl64(double) "arith_rt.cpp":49
> Function int Jitrino::Jet::rt_h_dcmp_l(double,double) "arith_rt.cpp":110
> Function int Jitrino::Jet::rt_h_lcmp(__int64,__int64) "arith_rt.cpp":70
> 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 rth_ldc_ref_helper "jit_runtime_support.cpp":163
> Function struct ManagedObject * vm_instantiate_cp_string_slow(struct Class *,unsigned int) "vm_strings.cpp":604
> "600" "" " vm_instantiate_cp_string_slow(Class* c, unsigned cp_index)"
> "601" "" " {"
> "602" "" " ASSERT_THROW_AREA;"
> "603" "" " #ifdef VM_STATS"
> "604" "*" " VM_Statistics::get_vm_stats().num_instantiate_cp_string_slow++;"
> "605" "" " #endif"
> "606" "" " "
> "607" "" " Java_java_lang_String* result;"
> 2nd Access
> Function int Jitrino::Jet::rt_h_dcmp_l(double,double) "arith_rt.cpp":110
> Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
> Function m2n_free_local_handles "m2n_ia32.cpp":268
> Function int Jitrino::Jet::rt_h_dcmp_l(double,double) "arith_rt.cpp":110
> Function vm_get_gc_thread_local "c_interface.cpp":2334
> Function gc_alloc_fast "gc_for_vm.cpp":178
> Function int Jitrino::Jet::rt_h_lcmp(__int64,__int64) "arith_rt.cpp":70
> Function class VM_thread * get_thread_ptr_stub(void) "thread_manager.cpp":138
> Function rth_ldc_ref_helper "jit_runtime_support.cpp":163
> Function struct ManagedObject * vm_instantiate_cp_string_slow(struct Class *,unsigned int) "vm_strings.cpp":604
> "600" "" " vm_instantiate_cp_string_slow(Class* c, unsigned cp_index)"
> "601" "" " {"
> "602" "" " ASSERT_THROW_AREA;"
> "603" "" " #ifdef VM_STATS"
> "604" "*" " VM_Statistics::get_vm_stats().num_instantiate_cp_string_slow++;"
> "605" "" " #endif"
> "606" "" " "
> "607" "" " Java_java_lang_String* result;"
> See also Source View screenshots.
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