Re: 2.5.69-mjb1

[William Lee Irwin III <wli@holomorphy.com>]

On Sat, May 10, 2003 at 08:44:09PM -0700, Martin J. Bligh wrote:
> thread_info_cleanup (4K stacks pt 1)		Dave Hansen / Ben LaHaise
> 	Prep work to reduce kernel stacks to 4K
> interrupt_stacks    (4K stacks pt 2)		Dave Hansen / Ben LaHaise
> 	Create a per-cpu interrupt stack.
> stack_usage_check   (4K stacks pt 3)		Dave Hansen / Ben LaHaise
> 	Check for kernel stack overflows.
> 4k_stack            (4K stacks pt 4)		Dave Hansen
> 	Config option to reduce kernel stacks to 4K


diff -urpN linux-2.5.69/include/asm-i386/processor.h kstk-2.5.69-1/include/asm-i386/processor.h
--- linux-2.5.69/include/asm-i386/processor.h	2003-05-04 16:53:00.000000000 -0700
+++ kstk-2.5.69-1/include/asm-i386/processor.h	2003-05-12 06:05:39.000000000 -0700
@@ -470,8 +470,8 @@ extern int kernel_thread(int (*fn)(void 
 extern unsigned long thread_saved_pc(struct task_struct *tsk);
 
 unsigned long get_wchan(struct task_struct *p);
-#define KSTK_EIP(tsk)	(((unsigned long *)(4096+(unsigned long)(tsk)->thread_info))[1019])
-#define KSTK_ESP(tsk)	(((unsigned long *)(4096+(unsigned long)(tsk)->thread_info))[1022])
+#define KSTK_EIP(task)	(((unsigned long *)(task)->thread_info)[THREAD_SIZE/sizeof(unsigned long) - 5])
+#define KSTK_ESP(task)	(((unsigned long *)(task)->thread_info)[THREAD_SIZE/sizeof(unsigned long) - 2])
 
 struct microcode {
 	unsigned int hdrver;