RFR (XS) 8212005: Epsilon elastic TLAB sizing may cause misalignment

[Aleksey Shipilev]

Bug:
  https://bugs.openjdk.java.net/browse/JDK-8212005

I thought we handle it properly, but we are not. This causes tier1_gc failures in x86_32 now.

Fix:
  http://cr.openjdk.java.net/~shade/8212005/webrev.01/

Testing: Linux {x86_64, x86_32} gc/epsilon, jdk-submit (running)

Thanks,
-Aleksey

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: OpenPGP digital signature
URL: <https://mail.openjdk.org/pipermail/hotspot-gc-dev/attachments/20181010/640b782c/signature.asc>