[External] : Re: Need help with ZGC failure in Lilliput

Roman Kennke rkennke at redhat.com
Wed Jul 21 09:12:25 UTC 2021

>> The problem always happens during weak storage scan. Inflation of a lock
>> creates new weak handle that points back to the object. I suspect that, at the
>> very least, this must not point to the old copy of that object. I need to think this
>> through.
> Is the lock inflation provoked by the GC thread itself, as a side effect of reading the klass?

Yes. The more I think about it, the more I come to the conclusion that 
this might be a no-go, except maybe for a dirty prototype (which is my 
current goal, tbh).

Can you share more about Robbin's work? Because this sounds like it 
would help avoid such problems.


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