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Commit b817f7e0 authored by Paul Mundt's avatar Paul Mundt
Browse files

sh: Disable 4kB stacks when using PAGE_SIZE_64KB. 



This combination triggers a divide by zero in kernel/fork.c when
calculating the initial max_threads value:

	max_threads = mempages / (8 * THREAD_SIZE / PAGE_SIZE);

Simply disable 4K stacks on 64kB PAGE_SIZE to work around this,
as it's not a terribly useful combination to begin with.

Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 21944781

arch/sh/Kconfig.debug

+1 −1
Original line number Diff line number Diff line
@@ -82,7 +82,7 @@ config DEBUG_STACK_USAGE 


config 4KSTACKS

	bool "Use 4Kb for kernel stacks instead of 8Kb"

	depends on DEBUG_KERNEL && (MMU || BROKEN)

	depends on DEBUG_KERNEL && (MMU || BROKEN) && !PAGE_SIZE_64KB

	help

	  If you say Y here the kernel will use a 4Kb stacksize for the

	  kernel stack attached to each process/thread. This facilitates