| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | menu "Kernel hacking" |
| 2 | |
| 3 | source "lib/Kconfig.debug" |
| 4 | |
| 5 | config DEBUG_RWLOCK |
| 6 | bool "Read-write spinlock debugging" |
| 7 | depends on DEBUG_KERNEL && SMP |
| 8 | help |
| 9 | If you say Y here then read-write lock processing will count how many |
| 10 | times it has tried to get the lock and issue an error message after |
| 11 | too many attempts. If you suspect a rwlock problem or a kernel |
| 12 | hacker asks for this option then say Y. Otherwise say N. |
| 13 | |
| Helge Deller | 1bcdd85 | 2006-01-13 13:21:06 -0700 | [diff] [blame] | 14 | config DEBUG_RODATA |
| 15 | bool "Write protect kernel read-only data structures" |
| 16 | depends on DEBUG_KERNEL |
| 17 | help |
| 18 | Mark the kernel read-only data as write-protected in the pagetables, |
| 19 | in order to catch accidental (and incorrect) writes to such const |
| 20 | data. This option may have a slight performance impact because a |
| 21 | portion of the kernel code won't be covered by a TLB anymore. |
| 22 | If in doubt, say "N". |
| 23 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | endmenu |