RFR: [8u] OOME in SurrogateLockerThread deadlocks the GC cycle

[Roman Kennke]

Am 03.10.2017 um 14:43 schrieb Aleksey Shipilev:
> On 10/03/2017 12:06 PM, Roman Kennke wrote:
>> Looks good.
>> It probably makes sense to evac the pll even before the root processor parallelizes root evac?
> Maybe, maybe not? Current placement guarantees first evac, and keeps the root evacuation code in
> common place, and keeps patch at bare minimum. I like that two last parts about it.
It doesn't exactly guarantee first evac, it just makes it more likely. 
There might well be one or more worker threads getting scheduled ahead 
of the one that evacs the pll. That's why I proposed to maybe even 
explictely evac the pll from the VMThread, even before we spin up the 
workers. But this might well be overkill (considering the other parts of 
the fix that already ensure smooth handling in case of failure). I leave 
the decision up to you :-)