| | 1 | config DEBUG_PAGEALLOC |
| | 2 | bool "Debug page memory allocations" |
| | 3 | depends on DEBUG_KERNEL && ARCH_SUPPORTS_DEBUG_PAGEALLOC |
| | 4 | depends on !HIBERNATION || !PPC && !SPARC |
| | 5 | depends on !KMEMCHECK |
| | 6 | ---help--- |
| | 7 | Unmap pages from the kernel linear mapping after free_pages(). |
| | 8 | This results in a large slowdown, but helps to find certain types |
| | 9 | of memory corruption. |
| | 10 | |
| | 11 | config WANT_PAGE_DEBUG_FLAGS |
| | 12 | bool |
| | 13 | |
| | 14 | config PAGE_POISONING |
| | 15 | bool "Debug page memory allocations" |
| | 16 | depends on DEBUG_KERNEL && !ARCH_SUPPORTS_DEBUG_PAGEALLOC |
| | 17 | depends on !HIBERNATION |
| | 18 | select DEBUG_PAGEALLOC |
| | 19 | select WANT_PAGE_DEBUG_FLAGS |
| | 20 | ---help--- |
| | 21 | Fill the pages with poison patterns after free_pages() and verify |
| | 22 | the patterns before alloc_pages(). This results in a large slowdown, |
| | 23 | but helps to find certain types of memory corruption. |
| | 24 | |
| | 25 | This option cannot be enabled in combination with hibernation as |
| | 26 | that would result in incorrect warnings of memory corruption after |
| | 27 | a resume because free pages are not saved to the suspend image. |
git://bbs.cooldavid.org / net-next-2.6.git / blame_incremental