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CONFIG_DEBUG_KMEMLEAK: Kernel memory leak detector

General informations

The Linux kernel configuration item CONFIG_DEBUG_KMEMLEAK:

Help text

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/dev-tools/kmemleak.rst for more details.

Enabling DEBUG_SLAB or SLUB_DEBUG may increase the chances of finding leaks due to the slab objects poisoning.

In order to access the kmemleak file, debugfs needs to be mounted (usually at /sys/kernel/debug).



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