RFR (S): 8218446: SuspendAtExit hangs

[David Holmes]

Thanks Robbin!

David

On 18/03/2019 6:26 pm, Robbin Ehn wrote:
> Hi David!
> 
>>
>> The fix is quite simple: we put the thread in the _thread_blocked 
>> state exactly as we already do for the suspend path in 
>> JavaThread::check_special_condition_for_native_trans.
> 
> Thanks for making the S/R saner, I agree totally!
> 
> Looks good!
> 
> /Robbin
> 
>>
>> With that fix SuspendAt Exit no longer appears to hang.
>>
>> Additional testing: (all tests that use suspend() just for good 
>> measure) (in progress)
>>    - hotspot
>>      - vmtestbase/nsk/jdi
>>      - runtime/Thread/SuspendAtExit.java
>>      - runtime/handshake/HandshakeWalkSuspendExitTest.java
>>      - runtime/jni/terminatedThread/TestTerminatedThread.java
>>      - vmTestbase/nsk/jvmti/GetThreadState/thrstat002/
>>    - jdk
>>      - com/sun/jdi/PopAsynchronousTest.java
>>      - java/nio/channels/SocketChannel/SendUrgentData.java
>>      - java/lang/management/ThreadMXBean/ThreadMXBeanStateTest.java
>>      - java/lang/ThreadGroup/Suspend.java
>>
>> Plus mach5 tiers 1-3.
>>
>> Thanks,
>> David