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From "Ivan Popov (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-4388) [drlvm][jvmti] DRLVM crashes in jvmti_start_single_step_in_virtual_method(), file jvmti_step.cpp, line 504: assertion "vtable"
Date Sat, 07 Jul 2007 11:08:04 GMT
[drlvm][jvmti] DRLVM crashes in jvmti_start_single_step_in_virtual_method(), file jvmti_step.cpp,
line 504: assertion "vtable"
------------------------------------------------------------------------------------------------------------------------------

                 Key: HARMONY-4388
                 URL: https://issues.apache.org/jira/browse/HARMONY-4388
             Project: Harmony
          Issue Type: Bug
          Components: DRLVM
         Environment: Windows/x86, harmony-jdk-r553376
            Reporter: Ivan Popov


After applying patch HARMONY-2889 for JDWP agent the following JDWP stress test:

    org.apache.harmony.test.stress.jpda.jdwp.scenario.EVENT014.EventTest014

crashes DRLVM in function jvmti_start_single_step_in_virtual_method(), file jvmti_step.cpp,
line 504: assertion "vtable".
Stack trace is the following:

>	harmonyvm.dll!_assert(const char * expr=0x007fe9cc, const char * filename=0x007fe970,
unsigned int lineno=504)  Line 295	C
 	harmonyvm.dll!jvmti_start_single_step_in_virtual_method(DebugUtilsTI * ti=0x016150a0, VMBreakPoint
* bp=0x03e9fa94, void * data=0x038d5950)  Line 504 + 0x1a	C++
 	harmonyvm.dll!jvmti_process_jit_single_step_event(TIEnv * unused_env=0x00000000, VMBreakPoint
* bp=0x03e9fa94, void * data=0x038d5950)  Line 589 + 0x11	C++
 	harmonyvm.dll!VMBreakPoints::process_native_breakpoint()  Line 673 + 0x25	C++
 	harmonyvm.dll!process_native_breakpoint_event()  Line 1329	C++
 	harmonyvm.dll!asm_process_native_breakpoint_event()  Line 1341	C++
 	12737a4c()	
 	harmonyvm.dll!vm_invoke_native_array_stub(unsigned int * args=0x03e9fd14, int sz=1, void
* f=0x0188c5d0)  Line 77	C++
 	harmonyvm.dll!JIT_execute_method_default(void * jit=0x00000000, _jmethodID * methodID=0x02f9a148,
jvalue * return_value=0x00000000, jvalue * args=0x03e9fef4)  Line 200	C++
 	em.dll!DrlEMImpl::executeMethod(_jmethodID * meth=0x02f9a148, jvalue * return_value=0x00000000,
jvalue * args=0x03e9fef4)  Line 509 + 0x16	C++
 	em.dll!ExecuteMethod(_jmethodID * meth=0x02f9a148, jvalue * return_value=0x00000000, jvalue
* args=0x03e9fef4)  Line 43 + 0x21	C++
 	harmonyvm.dll!vm_execute_java_method_array(_jmethodID * method=0x02f9a148, jvalue * result=0x00000000,
jvalue * args=0x03e9fef4)  Line 60 + 0x1b	C++
 	harmonyvm.dll!Objects_To_Finalize::do_finalization(int quantity=0)  Line 519 + 0xf	C++
 	harmonyvm.dll!vm_do_finalization(int quantity=0)  Line 631	C++
 	harmonyvm.dll!finalizer_thread_func(void * * args=0x035f02a0)  Line 241 + 0x7	C++
 	hythr.dll!thread_start_proc(void * arg=0x00427320)  Line 729 + 0x9	C
 	hythr.dll!_threadstartex(void * ptd=0x00427418)  Line 241 + 0xd	C
 	kernel32.dll!77e66063() 	

This crash happens only in JIT mode. If debugg VM is started in -Xint mode (using option "-Djpda.settings.debuggeeVMExtraOptions=-Xint"),
test successfully passes. I believe this is bug in implementation of JVMTI single step support
in JIT mode.



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