RFR 8231999: Shenandoah: Traversal failed compiler/jsr292/CallSiteDepContextTest.java

[Zhengyu Gu]

On 10/16/19 11:25 AM, Roman Kennke wrote:
> So for traversal, it falls to the normal LRB, is that what you intended?

It is always the case, isn't it?


-Zhengyu

> 
> Roman
> 
>> This patch partially reverts JDK-8231293's fix, because it hides dead
>> oops from GC, by returning NULL, which causes the failure of this test
>> case.
>>
>> The root cause of JDK-8231293 is that, Traversal deactivates SATB
>> barrier too late, it should be turned off before weak root processing.
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8231999
>> Webrev: http://cr.openjdk.java.net/~zgu/JDK-8231999/webrev.00/
>>
>> Test:
>>    hotspot_gc_shenandoah (fastdebug and release) on Linux
>>
>> After this fix, CallSiteDepContextTest.java test hangs in traversal
>> mode, but it is separate issue, tracked by JDK-8232380.
>>
>> Thanks,
>>
>> -Zhengyu
>>
>>
>>
>