RFR: 8316397: StackTrace/Suspended/GetStackTraceSuspendedStressTest.java failed with: SingleStep event is NOT expected [v4]

[David Holmes]

On Thu, 27 Feb 2025 22:28:33 GMT, Patricio Chilano Mateo <pchilanomate at openjdk.org> wrote:

>>> It has to be added somewhere between coming out of the blocked state 
>> 
>> Sorry when are we in the blocked state in the current scenario?
>
> When trying to get the JvmtiThreadState_lock to create the JvmtiThreadState object:
> 
> 
> Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
> V  [libjvm.so+0x14ba342]  Mutex::lock_contended(Thread*)+0x392  (interfaceSupport.inline.hpp:210)
> V  [libjvm.so+0x14bbf7a]  Mutex::lock()+0x9a  (mutex.cpp:125)
> V  [libjvm.so+0x120e9cb]  JvmtiEventControllerPrivate::thread_started(JavaThread*)+0x31b  (mutexLocker.hpp:196)
> V  [libjvm.so+0x1212c08]  JvmtiExport::get_jvmti_thread_state(JavaThread*)+0x98  (jvmtiExport.cpp:424)
> V  [libjvm.so+0x121e54a]  JvmtiExport::at_single_stepping_point(JavaThread*, Method*, unsigned char*)+0x7a  (jvmtiExport.cpp:1332)
> V  [libjvm.so+0xed8728]  InterpreterRuntime::at_safepoint(JavaThread*)+0x118  (interpreterRuntime.cpp:1165)

Uggghhh - I see. So why isn't this caught at ` ~ThreadBlockInVMPreprocess()`? Sorry I'm struggling to see the complete code.

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PR Review Comment: https://git.openjdk.org/jdk/pull/23490#discussion_r1974625178