Hello,
RFC
Page owner tracks a call chain that has allocated a page, this
patch set extends it with a PAGE_OWNER_TRACK_FREE functionality,
that now also tracks a call chain that has freed the page.
Page dump, thus, now has the following format:
a) page allocated backtrace
b) page free backtrace
c) backtrace of 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.
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 | 15 ++++++-
include/linux/page_owner.h | 16 +++----
lib/Kconfig.debug | 10 +++++
mm/page_alloc.c | 4 +-
mm/page_owner.c | 110 +++++++++++++++++++++++++++++++--------------
mm/vmstat.c | 5 ++-
6 files changed, 113 insertions(+), 47 deletions(-)
--
2.9.0.37.g6d523a3
