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[S390] Don't use small stacks when lockdep is used.

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The lock dependency validator adds a bunch of extra stack frames to
the stack, which can cause stack overflows. Especially seen on 31 bit
where the small stack is only 4k.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens
2006-12-04 15:41:10 +01:00
committed by Martin Schwidefsky
parent 47af551852
commit 74f8f557fd
1 changed files with 1 additions and 1 deletions
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arch/s390/Kconfig
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@@ -178,7 +178,7 @@ config PACK_STACK
config SMALL_STACK config SMALL_STACK
bool "Use 4kb/8kb for kernel stack instead of 8kb/16kb" bool "Use 4kb/8kb for kernel stack instead of 8kb/16kb"
depends on PACK_STACK depends on PACK_STACK && !LOCKDEP
help help
If you say Y here and the compiler supports the -mkernel-backchain If you say Y here and the compiler supports the -mkernel-backchain
option the kernel will use a smaller kernel stack size. For 31 bit option the kernel will use a smaller kernel stack size. For 31 bit