RFR (XS): 8055525: Bigapp weblogic+medrec fails to startup after JDK-8038423

Thomas Schatzl thomas.schatzl at oracle.com
Wed Aug 20 12:08:19 UTC 2014


Hi all,

  some correction to my explanation:

On Wed, 2014-08-20 at 13:41 +0200, Thomas Schatzl wrote:
> Hi all,
> 
>   can I have reviews for the following tiny change that fixes startup on
> linux with large pages enabled and said large pages configured by the
> OS?
> 
> The problem is some unnecessary initialization in G1RegionToSpaceMapper
> that fakes that all regions are initially committed in that case.

s/G1RegionToSpaceMapper/G1PageBasedVirtualSpace 

> 
> This is not required, because the lower layer (G1PageBasedVirtualSpace)

... because G1PageBasedVirtualSpace already does ...

> already does fake commit/uncommit calls (in that case these calls are
> nops like done elsewhere).
> 
> CR:
> https://bugs.openjdk.java.net/browse/JDK-8055525
> Webrev:
> http://cr.openjdk.java.net/~tschatzl/8055525/webrev/
> 
> Testing:
> jprt, manual local testing of bigapps/medrec before/after the change

Thanks,
  Thomas




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