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| author | Christoph Lameter <clameter@sgi.com> | 2007-07-15 23:38:14 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-16 09:05:36 -0700 |
| commit | f0630fff54a239efbbd89faf6a62da071ef1ff78 (patch) | |
| tree | 4004adc3adf4dbe1a6188ca0bbd56f7606d4d05f /Documentation/vm | |
| parent | fc9a07e7bf1a76e710f5df017abb07628db1781d (diff) | |
| download | lwn-f0630fff54a239efbbd89faf6a62da071ef1ff78.tar.gz lwn-f0630fff54a239efbbd89faf6a62da071ef1ff78.zip | |
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 <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/vm')
| -rw-r--r-- | Documentation/vm/slub.txt | 2 |
1 files changed, 2 insertions, 0 deletions
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: |