From f0630fff54a239efbbd89faf6a62da071ef1ff78 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Sun, 15 Jul 2007 23:38:14 -0700 Subject: SLUB: support slub_debug on by default Add a new configuration variable CONFIG_SLUB_DEBUG_ON If set then the kernel will be booted by default with slab debugging switched on. Similar to CONFIG_SLAB_DEBUG. By default slab debugging is available but must be enabled by specifying "slub_debug" as a kernel parameter. Also add support to switch off slab debugging for a kernel that was built with CONFIG_SLUB_DEBUG_ON. This works by specifying slub_debug=- as a kernel parameter. Dave Jones wanted this feature. http://marc.info/?l=linux-kernel&m=118072189913045&w=2 [akpm@linux-foundation.org: clean up switch statement] Signed-off-by: Christoph Lameter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/vm/slub.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation/vm') diff --git a/Documentation/vm/slub.txt b/Documentation/vm/slub.txt index 1523320abd87..df812b03b65d 100644 --- a/Documentation/vm/slub.txt +++ b/Documentation/vm/slub.txt @@ -41,6 +41,8 @@ Possible debug options are P Poisoning (object and padding) U User tracking (free and alloc) T Trace (please only use on single slabs) + - Switch all debugging off (useful if the kernel is + configured with CONFIG_SLUB_DEBUG_ON) F.e. in order to boot just with sanity checks and red zoning one would specify: -- cgit v1.2.3