Strange behaviour on half-occupied heap

[Aleksey Shipilev]

On 08/30/2018 07:28 PM, Simon Ogorodnik wrote:
> Find out that issue related to my local build, and not reproduces with build from CI with same sources

I can see how the zero space for CSet can happen, even if it is intermittent. I think evac-reserve
would help to mitigate bad behaviors on densely populated heaps:
  http://mail.openjdk.java.net/pipermail/shenandoah-dev/2018-August/007270.html

If everything goes well, it should land in sh/jdk8 early next week.

-Aleksey