uml: fix kernel stack size on x86_64
Force KERNEL_STACK_ORDER to be at least 1 on UML/x86_64, to avoid overflows. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -278,6 +278,7 @@ config HIGHMEM
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config KERNEL_STACK_ORDER
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int "Kernel stack size order"
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default 1 if 64BIT
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range 1 10 if 64BIT
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default 0 if !64BIT
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help
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This option determines the size of UML kernel stacks. They will
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