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| author | Jeff Garzik <jgarzik@pobox.com> | 2006-01-17 10:26:28 -0500 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2006-01-17 10:26:28 -0500 |
| commit | 0825788ff27c7145e9d558cb2a26f3837d1f9be5 (patch) | |
| tree | f6bdb892cec8ca0df69c08a3477c89f1542999e5 /arch/x86_64/Kconfig.debug | |
| parent | 02f693c7118f6be9e677070eb630c1f3a654cdd3 (diff) | |
| parent | 1bc4ccfff8675adc3d96f91245eb7e2dc0043ca9 (diff) | |
Merge branch 'upstream'
Diffstat (limited to 'arch/x86_64/Kconfig.debug')
| -rw-r--r-- | arch/x86_64/Kconfig.debug | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86_64/Kconfig.debug b/arch/x86_64/Kconfig.debug index e2c6e64a85e..fcb06a50fdd 100644 --- a/arch/x86_64/Kconfig.debug +++ b/arch/x86_64/Kconfig.debug @@ -9,6 +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" |