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authorPaul Mundt <lethal@linux-sh.org>2008-09-20 20:16:35 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-09-20 20:16:35 +0900
commitb817f7e020958c8f79842076c137daa6f72eb366 (patch)
treeb7e2b319b043584d6c4f621ad255130c28f63c26 /arch/sh/Kconfig.debug
parent2194478157127d52338be96ac9436dc54005816a (diff)
downloadvexpress-lsk-b817f7e020958c8f79842076c137daa6f72eb366.tar.gz
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 <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/Kconfig.debug')
-rw-r--r--arch/sh/Kconfig.debug2
1 files changed, 1 insertions, 1 deletions
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