diff options
Diffstat (limited to 'arch/x86_64/Kconfig.debug')
| -rw-r--r-- | arch/x86_64/Kconfig.debug | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/arch/x86_64/Kconfig.debug b/arch/x86_64/Kconfig.debug index d584ecc27ea1..fcb06a50fdd2 100644 --- a/arch/x86_64/Kconfig.debug +++ b/arch/x86_64/Kconfig.debug @@ -2,15 +2,6 @@ menu "Kernel hacking" source "lib/Kconfig.debug" -# !SMP for now because the context switch early causes GPF in segment reloading -# and the GS base checking does the wrong thing then, causing a hang. -config CHECKING - bool "Additional run-time checks" - depends on DEBUG_KERNEL && !SMP - help - Enables some internal consistency checks for kernel debugging. - You should normally say N. - config INIT_DEBUG bool "Debug __init statements" depends on DEBUG_KERNEL @@ -18,6 +9,16 @@ config INIT_DEBUG Fill __init and __initdata at the end of boot. This helps debugging illegal uses of __init and __initdata after initialization. +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 2MB TLB anymore. + If in doubt, say "N". + config IOMMU_DEBUG depends on GART_IOMMU && DEBUG_KERNEL bool "Enable IOMMU debugging" |