RFR: 8234654: ZGC: Only disarm NMethods when marking/relocating code roots

[Per Liden]

Thanks Erik!

/Per

On 11/22/19 3:35 PM, erik.osterlund at oracle.com wrote:
> Hi Per,
> 
> Looks good.
> 
> Thanks,
> /Erik
> 
> On 11/22/19 3:03 PM, Per Liden wrote:
>> ZRootIterator will currently always try to disarm on-stack NMethods. 
>> Strictly speaking, we should only do this when marking/relocating code 
>> roots, not when e.g. iterating the heap.
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8234654
>> Webrev: http://cr.openjdk.java.net/~pliden/8234654/webrev.0
>>
>> /Per
>