X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=lib%2FKconfig.debug;h=5f2ce616c0462db9b9055528110268385b2b653e;hb=4ccce02eb31b847dd6bf8486f037ba1db39403c5;hp=d780351835e9cb9e0b9bcf26f0e85f43d11f15c4;hpb=2ec1c17cadd0b994732f292d4bc49fc3a05d85a4;p=karo-tx-linux.git

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index d780351835e9..5f2ce616c046 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -227,6 +227,22 @@ config UNUSED_SYMBOLS
 	  you really need it, and what the merge plan to the mainline kernel for
 	  your module is.
 
+config PAGE_OWNER
+	bool "Track page owner"
+	depends on DEBUG_KERNEL && STACKTRACE_SUPPORT
+	select DEBUG_FS
+	select STACKTRACE
+	select PAGE_EXTENSION
+	help
+	  This keeps track of what call chain is the owner of a page, may
+	  help to find bare alloc_page(s) leaks. Even if you include this
+	  feature on your build, it is disabled in default. You should pass
+	  "page_owner=on" to boot parameter in order to enable it. Eats
+	  a fair amount of memory if enabled. See tools/vm/page_owner_sort.c
+	  for user-space helper.
+
+	  If unsure, say N.
+
 config DEBUG_FS
 	bool "Debug Filesystem"
 	help