diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2008-09-20 07:16:35 -0400 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-09-20 07:16:35 -0400 |
| commit | b817f7e020958c8f79842076c137daa6f72eb366 (patch) | |
| tree | b7e2b319b043584d6c4f621ad255130c28f63c26 /arch | |
| parent | 2194478157127d52338be96ac9436dc54005816a (diff) | |
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')
| -rw-r--r-- | arch/sh/Kconfig.debug | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug index 4d2d102e00d5..e6d2c8b11abd 100644 --- a/arch/sh/Kconfig.debug +++ b/arch/sh/Kconfig.debug | |||
| @@ -82,7 +82,7 @@ config DEBUG_STACK_USAGE | |||
| 82 | 82 | ||
| 83 | config 4KSTACKS | 83 | config 4KSTACKS |
| 84 | bool "Use 4Kb for kernel stacks instead of 8Kb" | 84 | bool "Use 4Kb for kernel stacks instead of 8Kb" |
| 85 | depends on DEBUG_KERNEL && (MMU || BROKEN) | 85 | depends on DEBUG_KERNEL && (MMU || BROKEN) && !PAGE_SIZE_64KB |
| 86 | help | 86 | help |
| 87 | If you say Y here the kernel will use a 4Kb stacksize for the | 87 | If you say Y here the kernel will use a 4Kb stacksize for the |
| 88 | kernel stack attached to each process/thread. This facilitates | 88 | kernel stack attached to each process/thread. This facilitates |