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| author | Sri Krishna chowdary <schowdary@nvidia.com> | 2018-12-28 09:38:54 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-12-28 21:11:51 +0100 |
| commit | d53ce042277a94eadf9a8a31fc41fac54c67dec5 (patch) | |
| tree | 3da438e716f60f459fead3af0ef0279ad80778c2 /lib | |
| parent | mm/page_alloc.c: don't call kasan_free_pages() at deferred mem init (diff) | |
| download | linux-d53ce042277a94eadf9a8a31fc41fac54c67dec5.tar.xz linux-d53ce042277a94eadf9a8a31fc41fac54c67dec5.zip | |
kmemleak: add config to select auto scan
Kmemleak scan can be cpu intensive and can stall user tasks at times. To
prevent this, add config DEBUG_KMEMLEAK_AUTO_SCAN to enable/disable auto
scan on boot up. Also protect first_run with DEBUG_KMEMLEAK_AUTO_SCAN as
this is meant for only first automatic scan.
Link: http://lkml.kernel.org/r/1540231723-7087-1-git-send-email-prpatel@nvidia.com
Signed-off-by: Sri Krishna chowdary <schowdary@nvidia.com>
Signed-off-by: Sachin Nikam <snikam@nvidia.com>
Signed-off-by: Prateek <prpatel@nvidia.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index b3c91b9e32f8..2b5a4256e88b 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -593,6 +593,21 @@ config DEBUG_KMEMLEAK_DEFAULT_OFF Say Y here to disable kmemleak by default. It can then be enabled on the command line via kmemleak=on. +config DEBUG_KMEMLEAK_AUTO_SCAN + bool "Enable kmemleak auto scan thread on boot up" + default y + depends on DEBUG_KMEMLEAK + help + Depending on the cpu, kmemleak scan may be cpu intensive and can + stall user tasks at times. This option enables/disables automatic + kmemleak scan at boot up. + + Say N here to disable kmemleak auto scan thread to stop automatic + scanning. Disabling this option disables automatic reporting of + memory leaks. + + If unsure, say Y. + config DEBUG_STACK_USAGE bool "Stack utilization instrumentation" depends on DEBUG_KERNEL && !IA64 |