When running Kitchensink on a rather large Solaris machine, we get the error:
"Attempt to use MPSS failed".

This error comes from os_solaris.cpp, Solaris::set_up_large_pages. The issue that the system call memcntl does not succeed. For more info about memcntl, see http://www.informit.com/articles/article.aspx?p=174103&seqNum=3.

AFAIK, memcntl is used to give Solaris a hint for the page size we want to use for a given virtual address region. memcntl can fails for various reasons (errno is not printed in the debug message), some examples are:
- Unsupported page size for the virtual address range
- Unaligned boundaries for the virtual address range
- Virtual address region is reserved with MAP_NORESERVE

The unsuccessful syscall means that the OS will not get the hint, which might result in slightly less performance.

Impact: Medium (we might get slightly wrong performance, but the app will still work)
Likelihood: Low (only happened once)
Workaround: High (run without large pages)

Medium + Low + High = P4