diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index d8828a758932..c205937eb7f3 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -356,6 +356,39 @@ config SLQB_STATS default n depends on SLQB_SYSFS +config DEBUG_KMEMLEAK + bool "Kernel memory leak detector" + default n + depends on EXPERIMENTAL && (X86 || ARM) && !MEMORY_HOTPLUG + select DEBUG_SLAB if SLAB + select SLUB_DEBUG if SLUB + select DEBUG_FS if SYSFS + select STACKTRACE if STACKTRACE_SUPPORT + select KALLSYMS + help + Say Y here if you want to enable the memory leak + detector. The memory allocation/freeing is traced in a way + similar to the Boehm's conservative garbage collector, the + difference being that the orphan objects are not freed but + only shown in /sys/kernel/debug/kmemleak. Enabling this + feature will introduce an overhead to memory + allocations. See Documentation/kmemleak.txt for more + details. + + In order to access the kmemleak file, debugfs needs to be + mounted (usually at /sys/kernel/debug). + +config DEBUG_KMEMLEAK_TEST + tristate "Simple test for the kernel memory leak detector" + default n + depends on DEBUG_KMEMLEAK + help + Say Y or M here to build a test for the kernel memory leak + detector. This option enables a module that explicitly leaks + memory. + + If unsure, say N. + config DEBUG_PREEMPT bool "Debug preemptible kernel" depends on DEBUG_KERNEL && PREEMPT && (TRACE_IRQFLAGS_SUPPORT || PPC64) |