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arch: arc: adjust privileged stack size of arc to 384 bytes

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Considering the case of call of printk, interrupt and
other cases, adjust the privileged stack size of arc to
384 bytes to avoid the the overflow of privileged stack.

Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
This commit is contained in:
Wayne Ren 2018-06-11 13:00:24 +08:00 • committed by Maureen Helm
commit d5bc9d7bee
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arch/Kconfig
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@ -82,6 +82,7 @@ config USERSPACE
config PRIVILEGED_STACK_SIZE
int "Size of privileged stack"
default 256
default 384 if ARC
depends on ARCH_HAS_USERSPACE
help
This option sets the privileged stack region size that will be used