Hello, Page owner tracks a call chain that has allocated a page, this patch set extends it with a free_pages call chain tracking functionality. Page dump, thus, now has the following format: a) page allocated backtrace b) page free backtrace c) backtrace of the path that has trigger bad page For a quick example of a case when this new b) part can make a difference please see 0003. v2: -- do not add PAGE_OWNER_TRACK_FREE .config -- Joonsoo -- minor improvements Sergey Senozhatsky (3): mm/page_owner: rename page_owner functions mm/page_owner: rename PAGE_EXT_OWNER flag mm/page_owner: track page free call chain include/linux/page_ext.h | 13 +++++-- include/linux/page_owner.h | 16 ++++----- mm/page_alloc.c | 4 +-- mm/page_owner.c | 86 ++++++++++++++++++++++++++++------------------ mm/vmstat.c | 5 ++- 5 files changed, 77 insertions(+), 47 deletions(-) -- 2.9.0.37.g6d523a3 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>