Horst von Brand <vonbrand@xxxxxxxxxxxx> wrote:
"With some drawbacks" is the point: It has been determined that the
drawbacks are heavy enough that the 8KiB stack option should go.
Determined by voodoo and wild guessing.
Let's detect the need for 4K stacks: (I hope I found the correct place)
(Maybe the printk should be completely ifdefed, but I'm not sure)
Signed-off-by: Bodo Eggert <7eggert@xxxxxx>
--- 2.6.14/kernel/fork.c.ori 2005-12-21 19:06:24.000000000 +0100
+++ 2.6.14/kernel/fork.c 2005-12-21 19:15:23.000000000 +0100
@@ -168,4 +168,9 @@ static struct task_struct *dup_task_stru
if (!ti) {
free_task_struct(tsk);
+ printk(KERN_WARNING, "Can't allocate new task structure"
+#ifndef CONFIG_4KSTACKS
+ ". Maybe you could benefit from 4K stacks.\n"
+#endif
+ "\n");
return NULL;
}