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authorDave Hansen <dave.hansen@linux.intel.com>2014-01-22 00:48:48 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-22 01:19:43 +0100
commit0e147aed4c250766e657855db55a395d2c8008a5 (patch)
tree97f9e808e2bb6b8d5ef011ddfd70812c148f2df9 /mm/hugetlb.c
parentmm: Make {,set}page_address() static inline if WANT_PAGE_VIRTUAL (diff)
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mm: hugetlbfs: Add some VM_BUG_ON()s to catch non-hugetlbfs pages
Dave Jiang reported that he was seeing oopses when running NUMA systems and default_hugepagesz=1G. I traced the issue down to migrate_page_copy() trying to use the same code for hugetlb pages and transparent hugepages. It should not have been trying to pass thp pages in there. So, add some VM_BUG_ON()s for the next hapless VM developer that tries the same thing. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Tested-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Mel Gorman <mgorman@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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