review(S): 7124829: NUMA: memory leak on Linux with large pages
vladimir.kozlov at oracle.com
Tue Dec 27 18:40:30 UTC 2011
You missed changes (additional parameter) in other OS files: bsd, solaris.
Igor Veresov wrote:
> The issue is with os::free_memory() changes made in 7060842 when the
> “madvise” call was replaced with “mmap”. This is the reason of
> exhaustive memory consumption. Seems when we need to remap some memory
> we need to do it using the same flags as we mapped it initially,
> particularly with “MAP_HUGETLB”. Otherwise system maps small pages
> instead of already reserved huge pages.
> Contributed by: Aleksey Ignatenko <aleksey.v.ignatenko at intel.com>
> Webrev: http://cr.openjdk.java.net/~iveresov/7124829/webrev.00/
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