Re: [PATCH v2 1/6] mm/balloon_compaction: ignore anonymous pages

2014-09-02 Thread Rafael Aquini
On Sat, Aug 30, 2014 at 08:41:09PM +0400, Konstantin Khlebnikov wrote: > From: Konstantin Khlebnikov > > Sasha Levin reported KASAN splash inside isolate_migratepages_range(). > Problem is in function __is_movable_balloon_page() which tests AS_BALLOON_MAP > in page->mapping->flags. This function

Re: [PATCH v2 1/6] mm/balloon_compaction: ignore anonymous pages

2014-09-02 Thread Rafael Aquini
On Sat, Aug 30, 2014 at 08:41:09PM +0400, Konstantin Khlebnikov wrote: From: Konstantin Khlebnikov k.khlebni...@samsung.com Sasha Levin reported KASAN splash inside isolate_migratepages_range(). Problem is in function __is_movable_balloon_page() which tests AS_BALLOON_MAP in

[PATCH v2 1/6] mm/balloon_compaction: ignore anonymous pages

2014-08-30 Thread Konstantin Khlebnikov
From: Konstantin Khlebnikov Sasha Levin reported KASAN splash inside isolate_migratepages_range(). Problem is in function __is_movable_balloon_page() which tests AS_BALLOON_MAP in page->mapping->flags. This function has no protection against anonymous pages. As result it tried to check address

[PATCH v2 1/6] mm/balloon_compaction: ignore anonymous pages

2014-08-30 Thread Konstantin Khlebnikov
From: Konstantin Khlebnikov k.khlebni...@samsung.com Sasha Levin reported KASAN splash inside isolate_migratepages_range(). Problem is in function __is_movable_balloon_page() which tests AS_BALLOON_MAP in page-mapping-flags. This function has no protection against anonymous pages. As result it