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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2008-02-05 16:50:37 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-02-05 16:50:54 +0100 |
| commit | 2485579bf5d3ea30d39b251defa1620ad77168bd (patch) | |
| tree | ef07e9e793f7f73d69b21c539ad96d5346787182 /arch/s390/Kconfig.debug | |
| parent | 01bc8ad165490458a8feb744c8f401c1a7098e3a (diff) | |
| download | lwn-2485579bf5d3ea30d39b251defa1620ad77168bd.tar.gz lwn-2485579bf5d3ea30d39b251defa1620ad77168bd.zip | |
[S390] DEBUG_PAGEALLOC support for s390.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/Kconfig.debug')
| -rw-r--r-- | arch/s390/Kconfig.debug | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug index 2283933a9a93..4599fa06bd82 100644 --- a/arch/s390/Kconfig.debug +++ b/arch/s390/Kconfig.debug @@ -6,4 +6,12 @@ config TRACE_IRQFLAGS_SUPPORT source "lib/Kconfig.debug" +config DEBUG_PAGEALLOC + bool "Debug page memory allocations" + depends on DEBUG_KERNEL + help + Unmap pages from the kernel linear mapping after free_pages(). + This results in a slowdown, but helps to find certain types of + memory corruptions. + endmenu |