CodeCacheExpansionSize too small for Zero on ppc32/ppc64

[Tobias Hartmann]

> Alternatively, wouldn't it make more sense to set CodeCacheExpansionSize
> in globals.hpp to os::vm_page_size()? I mean, then your change would
> still be in and we still would fix the problem.

Yes, but to be on the safe side, we should fix the 32*K defaults on all platforms:
http://cr.openjdk.java.net/~thartmann/8191996/webrev.01/

> Ok, let me test the change first real quick just to be safe.

Thanks! Please let me know if there are still problems.

> Thanks for being so quick fixing it!

Sure, I've filed JDK-8191996 and will send the fix for review soon.

Best regards,
Tobias