mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 06:50:58 +07:00
7bc32f6f90
Fix kconfig dependency warning to satisfy dependencies: warning: (PAGE_POISONING) selects DEBUG_PAGEALLOC which has unmet direct dependencies (DEBUG_KERNEL && ARCH_SUPPORTS_DEBUG_PAGEALLOC && (!HIBERNATION || !PPC && !SPARC) && !KMEMCHECK) Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
25 lines
908 B
Plaintext
25 lines
908 B
Plaintext
config DEBUG_PAGEALLOC
|
|
bool "Debug page memory allocations"
|
|
depends on DEBUG_KERNEL
|
|
depends on !HIBERNATION || ARCH_SUPPORTS_DEBUG_PAGEALLOC && !PPC && !SPARC
|
|
depends on !KMEMCHECK
|
|
select PAGE_POISONING if !ARCH_SUPPORTS_DEBUG_PAGEALLOC
|
|
---help---
|
|
Unmap pages from the kernel linear mapping after free_pages().
|
|
This results in a large slowdown, but helps to find certain types
|
|
of memory corruption.
|
|
|
|
For architectures which don't enable ARCH_SUPPORTS_DEBUG_PAGEALLOC,
|
|
fill the pages with poison patterns after free_pages() and verify
|
|
the patterns before alloc_pages(). Additionally,
|
|
this option cannot be enabled in combination with hibernation as
|
|
that would result in incorrect warnings of memory corruption after
|
|
a resume because free pages are not saved to the suspend image.
|
|
|
|
config WANT_PAGE_DEBUG_FLAGS
|
|
bool
|
|
|
|
config PAGE_POISONING
|
|
bool
|
|
select WANT_PAGE_DEBUG_FLAGS
|