menu "Kernel hacking" source "lib/Kconfig.debug" config DEBUG_RODATA bool "Write protect kernel read-only data structures" depends on DEBUG_KERNEL help Mark the kernel read-only data as write-protected in the pagetables, in order to catch accidental (and incorrect) writes to such const data. This option may have a slight performance impact because a portion of the kernel code won't be covered by a TLB anymore. If in doubt, say "N". endmenu config DEBUG_STACKOVERFLOW bool "Check for stack overflows" default y depends on DEBUG_KERNEL ---help--- Say Y here if you want to check the overflows of kernel, IRQ and exception stacks. This option will cause messages of the stacks in detail when free stack space drops below a certain limit. If in doubt, say "N".