RFR: 8150518: G1 GC crashes at G1CollectedHeap::do_collection_pause_at_safepoint(double)

[Thomas Schatzl]

Hi Jon,

On Wed, 2016-03-16 at 10:30 -0700, Jon Masamitsu wrote:
> 
> On 03/16/2016 04:40 AM, Thomas Schatzl wrote:
> > Hi,
> > 
> > 
[...]
> > > > Find below is the details
> > > > Bugid - https://bugs.openjdk.java.net/browse/JDK-8150518
> > > > Webrev - http://cr.openjdk.java.net/~rpatil/8150518/webrev.01/
> > > Looks good.
> >    fine with me, but we probably need to prepare some release note
> > about
> > that behavioral change.
> 
> I added the label release-note=yes and the comment
> 
> > For release notes
> > 
> > With UseG1GC specifying -XX:ParallelGCThreads=0 is no longer
> > allowed. 
> > Previously with -XX:ParallelGCThreads=0 G1 would execute some tasks
> > using serial code executed by the VM thread. The closest
> > approximation 
> > to this behavior is to specify -XX:ParallelGCThreads=1 which will 
> > cause parallel tasks to be executed by a single GC worker thread
> > using 
> > parallel code. 
> 
> Please feel free to edit that comment.

  sounds fine. Thanks.

Thomas