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SubjectRe: [PATCH] i386: Execute stack overflow warning on interrupt stack
On 05/02/2008 11:18 AM, Andi Kleen wrote:
> i386: Execute stack overflow warning on interrupt stack
[...]
> --- linux.orig/arch/x86/kernel/irq_32.c
> +++ linux/arch/x86/kernel/irq_32.c
> @@ -61,6 +61,26 @@ static union irq_ctx *hardirq_ctx[NR_CPU
> static union irq_ctx *softirq_ctx[NR_CPUS] __read_mostly;
> #endif
>
> +static void stack_overflow(void)
> +{
> + printk("low stack detected by irq handler\n");
> + dump_stack();
> +}
> +
> +static inline void call_on_stack2(void *func, unsigned long stack,
> + unsigned long arg1, unsigned long arg2)
> +{
> + unsigned long bx;
> + asm volatile(
> + " xchgl %%ebx,%%esp \n"
> + " call *%%edi \n"
> + " movl %%ebx,%%esp \n"
> + : "=a" (arg1), "=d" (arg2), "=b" (bx)
> + : "0" (arg1), "1" (arg2), "2" (stack),
> + "D" (func)
> + : "memory", "cc", "ecx');

Am I seeing wrong, or is it a ' after the ecx?


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