From: Paul Mundt Date: Sat, 20 Sep 2008 11:16:35 +0000 (+0900) Subject: sh: Disable 4kB stacks when using PAGE_SIZE_64KB. X-Git-Tag: v2.6.28-rc1~99^2~38 X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=b817f7e020958c8f79842076c137daa6f72eb366;p=linux-2.6-omap-h63xx.git 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: Paul Mundt --- diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug index 4d2d102e00d..e6d2c8b11ab 100644 --- a/arch/sh/Kconfig.debug +++ b/arch/sh/Kconfig.debug @@ -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