RFR: 8170355 - [BACKOUT] 8k class metaspace chunks misallocated from 4k chunk freelist

Stefan Karlsson stefan.karlsson at oracle.com
Fri Nov 25 15:58:32 UTC 2016

Hi Jesper,

On 2016-11-25 16:18, Jesper Wilhelmsson wrote:
> Hi,
> Please review this backout of JDK-8169931 that is causing problems in
> the nightlies that has proven difficult to fix.

The assert introduced in JDK-8169931 found a similar bug but this time 
in the metaspace initialization code. Using command line flags, there 
are ways to request a non-humongous chunk size (smaller than the Medium 
chunk size) that doesn't match any of the fixed chunk sizes.

> Bug: https://bugs.openjdk.java.net/browse/JDK-8170355
> Webrev: http://cr.openjdk.java.net/~jwilhelm/8170355/webrev.00/

The backout looks good.


> Thanks,
> /Jesper

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