Application failure with traversal

[Aleksey Shipilev]

On 02/09/2018 06:27 PM, Lennart Börjeson wrote:
>>  c) C2: -XX:-TieredCompilation
> 
> Fails.

OK, both good and bad! And that is without any GC cycle happening, right? If so, that must
definitely point at something gone wrong in C2, which means we can use passive mode, and gradually
narrow down which part had failed (in order of most probability):

 0) Run with -XX:-TieredCompilation -XX:ShenandoahGCHeuristics=passive
 1) Add -XX:+ShenandoahBarriersForConst
 2) Add -XX:+ShenandoahAsmWB
 3) Add -XX:+ShenandoahReadBarrier
 4) Add -XX:+ShenandoahWriteBarrier
 5) Add -XX:-ShenandoahWriteBarrierRB
 6) Add -XX:+ShenandoahStoreValEnqueueBarrier
 7) Add -XX:+ShenandoahCASBarrier
 8) Add -XX:+ShenandoahAcmpBarrier
 9) Add -XX:+ShenandoahCloneBarrier

-Aleksey