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-rw-r--r--arch/s390/Makefile2
-rw-r--r--arch/s390/include/asm/thread_info.h4
2 files changed, 5 insertions, 1 deletions
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index ee65185bbc80..0b33577932c3 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -27,7 +27,7 @@ KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-option,-ffreestanding)
KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO),-g)
KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO_DWARF4), $(call cc-option, -gdwarf-4,))
UTS_MACHINE := s390x
-STACK_SIZE := 16384
+STACK_SIZE := $(if $(CONFIG_KASAN),32768,16384)
CHECKFLAGS += -D__s390__ -D__s390x__
export LD_BFD
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index 1bbbaf6ae511..79b40600f523 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -13,7 +13,11 @@
/*
* General size of kernel stacks
*/
+#ifdef CONFIG_KASAN
+#define THREAD_SIZE_ORDER 3
+#else
#define THREAD_SIZE_ORDER 2
+#endif
#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
#ifndef __ASSEMBLY__