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Commit 74f8f557 authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky
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[S390] Don't use small stacks when lockdep is used. 



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: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 47af5518

arch/s390/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -178,7 +178,7 @@ config PACK_STACK 


config SMALL_STACK

	bool "Use 4kb/8kb for kernel stack instead of 8kb/16kb"

	depends on PACK_STACK

	depends on PACK_STACK && !LOCKDEP

	help

	  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