--- linux-2.6.7/arch/i386/Kconfig	2004/07/27 18:15:33	1.1
+++ linux-2.6.7/arch/i386/Kconfig	2004/07/27 18:16:05
@@ -1294,6 +1294,13 @@
 	  on the VM subsystem for higher order allocations. This option
 	  will also use IRQ stacks to compensate for the reduced stackspace.
 
+config 16KSTACKS
+	bool "Use 16Kb for kernel stacks instead of 8Kb"
+	help
+	  If you say Y here the kernel will use a 16Kb stacksize for the
+	  kernel stack attached to each process/thread. This option
+	  will also use IRQ stacks to compensate for the reduced stackspace.
+
 config X86_FIND_SMP_CONFIG
 	bool
 	depends on X86_LOCAL_APIC || X86_VOYAGER
--- linux-2.6.7/arch/i386/kernel/irq.c	2004/07/11 19:47:05	1.1
+++ linux-2.6.7/arch/i386/kernel/irq.c	2004/07/11 19:47:26
@@ -77,7 +77,7 @@
 /*
  * per-CPU IRQ handling stacks
  */
-#ifdef CONFIG_4KSTACKS
+#if defined(CONFIG_4KSTACKS) || defined(CONFIG_16KSTACKS)
 union irq_ctx *hardirq_ctx[NR_CPUS];
 union irq_ctx *softirq_ctx[NR_CPUS];
 #endif
@@ -488,7 +488,7 @@
 	 * useful for irq hardware that does not mask cleanly in an
 	 * SMP environment.
 	 */
-#ifdef CONFIG_4KSTACKS
+#if defined(CONFIG_4KSTACKS) || defined(CONFIG_16KSTACKS)
 
 	for (;;) {
 		irqreturn_t action_ret;
@@ -1116,7 +1116,7 @@
 }
 
 
-#ifdef CONFIG_4KSTACKS
+#if defined(CONFIG_4KSTACKS) || defined(CONFIG_16KSTACKS)
 static char softirq_stack[NR_CPUS * THREAD_SIZE]  __attribute__((__aligned__(THREAD_SIZE), __section__(".bss.page_aligned")));
 static char hardirq_stack[NR_CPUS * THREAD_SIZE]  __attribute__((__aligned__(THREAD_SIZE), __section__(".bss.page_aligned")));
 
--- linux-2.6.7/include/asm-i386/irq.h	2004/07/11 19:43:37	1.1
+++ linux-2.6.7/include/asm-i386/irq.h	2004/07/11 19:44:06
@@ -31,7 +31,7 @@
 #define ARCH_HAS_NMI_WATCHDOG		/* See include/linux/nmi.h */
 #endif
 
-#ifdef CONFIG_4KSTACKS
+#if defined(CONFIG_4KSTACKS) || defined(CONFIG_16KSTACKS)
 /*
  * per-CPU IRQ handling contexts (thread information and stack)
  */
--- linux-2.6.7/include/asm-i386/module.h	2004/07/11 19:43:37	1.1
+++ linux-2.6.7/include/asm-i386/module.h	2004/07/11 19:45:28
@@ -63,8 +63,12 @@
 #ifdef CONFIG_4KSTACKS
 #define MODULE_STACKSIZE "4KSTACKS "
 #else
+#ifdef CONFIG_16KSTACKS
+#define MODULE_STACKSIZE "16KSTACKS "
+#else
 #define MODULE_STACKSIZE ""
 #endif
+#endif
 
 #define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_REGPARM MODULE_STACKSIZE
 
--- linux-2.6.7/include/asm-i386/thread_info.h	2004/07/11 19:43:37	1.1
+++ linux-2.6.7/include/asm-i386/thread_info.h	2004/07/11 19:45:09
@@ -55,8 +55,12 @@
 #ifdef CONFIG_4KSTACKS
 #define THREAD_SIZE            (4096)
 #else
+#ifdef CONFIG_16KSTACKS
+#define THREAD_SIZE		(16384)
+#else
 #define THREAD_SIZE		(8192)
 #endif
+#endif
 
 #define STACK_WARN             (THREAD_SIZE/8)
 /*