On 9/12/19 4:53 PM, Vlastimil Babka wrote: > On 9/11/19 5:19 PM, Qian Cai wrote: >> >> The new config looks redundant and confusing. It looks to me more of a document update >> in Documentation/dev-tools/kasan.txt to educate developers to select PAGE_OWNER and >> DEBUG_PAGEALLOC if needed. > > Agreed. But if you want it fully automatic, how about something > like this (on top of mmotm/next)? If you agree I'll add changelog > and send properly. > > ----8<---- > > From a528d14c71d7fdf5872ca8ab3bd1b5bad26670c9 Mon Sep 17 00:00:00 2001 > From: Vlastimil Babka <vbabka@xxxxxxx> > Date: Thu, 12 Sep 2019 15:51:23 +0200 > Subject: [PATCH] make KASAN enable page_owner with free stack capture > > --- > include/linux/page_owner.h | 1 + > lib/Kconfig.kasan | 4 ++++ > mm/Kconfig.debug | 5 +++++ > mm/page_alloc.c | 6 +++++- > mm/page_owner.c | 37 ++++++++++++++++++++++++------------- > 5 files changed, 39 insertions(+), 14 deletions(-) > Looks ok to me. This certainly better than full dependency on the DEBUG_PAGEALLOC which we don't need.
