Hi

Recently i got a smc wireless network interface (usb) and following certain links I found I had to use the ndiswrapper to start this device, this is working, secondly I have to patch the kernel someware and this is the part im struggling with. This is the patch script.

What exactly do I patch ( A little confuzed thanx )

Running slackware 11
Toshiba sattelite L-20
2.6.18.1 kernel



diff -urN linux-2.6.18/arch/i386/Kconfig.debug linux-2.6.18-16kstacks/arch/i386/Kconfig.debug
--- linux-2.6.18/arch/i386/Kconfig.debug 2006-09-19 23:42:06.000000000 -0400
+++ linux-2.6.18-16kstacks/arch/i386/Kconfig.debug 2006-09-27 13:09:54.000000000 -0400
@@ -66,6 +66,14 @@
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"
+ depends on DEBUG_KERNEL
+ 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
diff -urN linux-2.6.18/arch/i386/defconfig linux-2.6.18-16kstacks/arch/i386/defconfig
--- linux-2.6.18/arch/i386/defconfig 2006-09-19 23:42:06.000000000 -0400
+++ linux-2.6.18-16kstacks/arch/i386/defconfig 2006-09-27 13:09:54.000000000 -0400
@@ -1518,12 +1518,14 @@
#
# CONFIG_PRINTK_TIME is not set
CONFIG_MAGIC_SYSRQ=y
-# CONFIG_DEBUG_KERNEL is not set
+CONFIG_DEBUG_KERNEL=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_EARLY_PRINTK=y
CONFIG_X86_FIND_SMP_CONFIG=y
CONFIG_X86_MPPARSE=y
+# CONFIG_4KSTACKS is not set
+CONFIG_16KSTACKS=y

#
# Security options
diff -urN linux-2.6.18/arch/i386/kernel/irq.c linux-2.6.18-16kstacks/arch/i386/kernel/irq.c
--- linux-2.6.18/arch/i386/kernel/irq.c 2006-09-19 23:42:06.000000000 -0400
+++ linux-2.6.18-16kstacks/arch/i386/kernel/irq.c 2006-09-27 13:11:05.000000000 -0400
@@ -33,7 +33,7 @@
}
#endif

-#ifdef CONFIG_4KSTACKS
+#if defined(CONFIG_4KSTACKS) || defined(CONFIG_16KSTACKS)
/*
* per-CPU IRQ handling contexts (thread information and stack)
*/
@@ -55,7 +55,7 @@
{
/* high bit used in ret_from_ code */
int irq = ~regs->orig_eax;
-#ifdef CONFIG_4KSTACKS
+#if defined(CONFIG_4KSTACKS) || defined(CONFIG_16KSTACKS)
union irq_ctx *curctx, *irqctx;
u32 *isp;
#endif
@@ -82,7 +82,7 @@
}
#endif

-#ifdef CONFIG_4KSTACKS
+#if defined(CONFIG_4KSTACKS) || defined(CONFIG_16KSTACKS)

curctx = (union irq_ctx *) current_thread_info();
irqctx = hardirq_ctx[smp_processor_id()];
@@ -126,7 +126,7 @@
return 1;
}

-#ifdef CONFIG_4KSTACKS
+#if defined(CONFIG_4KSTACKS) || defined(CONFIG_16KSTACKS)

/*
* These should really be __section__(".bss.page_aligned") as well, but
diff -urN linux-2.6.18/include/asm-i386/irq.h linux-2.6.18-16kstacks/include/asm-i386/irq.h
--- linux-2.6.18/include/asm-i386/irq.h 2006-09-19 23:42:06.000000000 -0400
+++ linux-2.6.18-16kstacks/include/asm-i386/irq.h 2006-09-27 13:09:54.000000000 -0400
@@ -24,7 +24,7 @@
# define ARCH_HAS_NMI_WATCHDOG /* See include/linux/nmi.h */
#endif

-#ifdef CONFIG_4KSTACKS
+#if defined(CONFIG_4KSTACKS) || defined(CONFIG_16KSTACKS)
extern void irq_ctx_init(int cpu);
extern void irq_ctx_exit(int cpu);
# define __ARCH_HAS_DO_SOFTIRQ
diff -urN linux-2.6.18/include/asm-i386/module.h linux-2.6.18-16kstacks/include/asm-i386/module.h
--- linux-2.6.18/include/asm-i386/module.h 2006-09-19 23:42:06.000000000 -0400
+++ linux-2.6.18-16kstacks/include/asm-i386/module.h 2006-09-27 13:09:54.000000000 -0400
@@ -69,8 +69,12 @@
#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

diff -urN linux-2.6.18/include/asm-i386/thread_info.h linux-2.6.18-16kstacks/include/asm-i386/thread_info.h
--- linux-2.6.18/include/asm-i386/thread_info.h 2006-09-19 23:42:06.000000000 -0400
+++ linux-2.6.18-16kstacks/include/asm-i386/thread_info.h 2006-09-27 13:09:54.000000000 -0400
@@ -56,8 +56,12 @@
#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)
/*

try skipping the patch. Ussually the larger stack size is a work around for possible crashes with windows drivers under linuxant/ndiswrapper.

If you still want to try it tho, do this:

Then you have to recompile your kernel (after you 'make menuconfig' and enable that new option) and reboot with the new kernel. Check the sticky up top if your unsure how to go about that.