RFR: 8012241 Kitchensink crashed with OOME on linux x64

[Zhengyu Gu]

NMT shuts itself down when it encounters OOM. But most of time, OOM is encountered by other parts of VM, which could result in fatal error. The change is to intercept OOM in os::malloc() and shutdown NMT, hopefully will free enough memory to allow VM to continue executing.


Bug:  https://jbs.oracle.com/bugs/browse/JDK-8012241
External bug: Not available
Webrev: http://cr.openjdk.java.net/~zgu/8012241/webrev.00/


Thanks,

-Zhengyu