On Mon, 18 May 2009, Mel Gorman wrote: > Due to some confustion between VM_SHARED and VM_MAYSHARE in hugetlbfs, > it is possible for hugepage reservations to get leaked. By using > VM_SHARED, hugetlbfs will treat a shmem segment mapped read-only as if > it was MAP_PRIVATE. > > This patch adds a test that checks if the kernel is vunerable to this bug. > Note if this test fails, the system may no longer be usable for hugepage > testing as the system will always think it has insufficient pages. > > A patch is currently being tested for this bug but no fix is merged > upstream yet. > > Signed-off-by: Mel Gorman <m...@csn.ul.ie>
Applied, thanks. Eric
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