[HARMONY-4388] [drlvm][jvmti] DRLVM crashes in jvmti_start_single_step_in_virtual_method(), file jvmti_step.cpp, line 504: assertion "vtable"

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Component/s: DRLVM
• Environment: Windows/x86, harmony-jdk-r553376
• Assignee: Gregory Shimansky
• Reporter: Ivan Popov
• Created: 07/Jul/07 11:07
• Updated: 02/May/13 02:29
• Resolved: 13/Sep/07 17:18

Description

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.

Issue Links

• depends upon: HARMONY-2889 [jdktools][jdwp] group identical Breakpoint, Step, MethodEntry, MethodExit events
• is duplicated by: HARMONY-4981 [drlvm][jvmti] single step crash in the virtual method