[8u] RFR: 8215355: Object monitor deadlock with no threads holding the monitor (using jemalloc 5.1)

[Severin Gehwolf]

On Wed, 2020-03-11 at 09:05 +1000, David Holmes wrote:
> Hi Severin,
> 
> LGTM.

Thanks for the review, David!

Cheers,
Severin

> Thanks,
> David
> 
> On 10/03/2020 11:52 pm, Severin Gehwolf wrote:
> > Hi,
> > 
> > Could I please get a review of this OpenJDK 8u backport? The patch is
> > in Oracle JDK 8u and we should get it backported for parity. It doesn't
> > apply cleanly, but is rather trivial to be fixed up manually. The hunk
> > in thread.hpp didn't apply since JDK-8139864[1] is not in OpenJDK 8u.
> > Thus, changed '>=' to '>' manually in thread.hpp.
> > 
> > Bug: https://bugs.openjdk.java.net/browse/JDK-8215355
> > webrev: http://cr.openjdk.java.net/~sgehwolf/webrevs/JDK-8215355/01/webrev/
> > Original change: https://hg.openjdk.java.net/jdk/jdk/rev/189f47d990b5
> > 
> > Testing: Reproducer in JDK-8215355 (fails prior/passes after), tier1 tests.
> > 
> > Thoughts?
> > 
> > Thanks,
> > Severin
> >