apparently my post is a bit wrong, see Gaurav's posts.
That said, I found the following in arch/i386/kernel/irq.c
#ifdef CONFIG_DEBUG_STACKOVERFLOW
/* Debugging check for stack overflow: is there less than 1KB free? */
{
long esp;
__asm__ __volatile__("andl %%esp,%0" :
"=r" (esp) : "0" (THREAD_SIZE - 1));
if (unlikely(esp < (sizeof(struct thread_info) + STACK_WARN))) {
printk("do_IRQ: stack overflow: %ld\n",
esp - sizeof(struct thread_info));
dump_stack();
}
}
#endif
is that what you are looking for?
On Wed, 29 Sep 2004 11:24:49 +0200, Stephane List <slist@xxxxxxxxxxx> wrote:
>
> >IIUC a kernel module uses the kernel's stack and heap. And because of
> >this modules which use a lot of stack space can cause some serious
> >problems.
> >
> >
> >
> Does Linux provide a mecanism to panic in case of stack or heap overflow ?
> If I run Linux in an emulator, is there a thing I could trace to detect
> such problem ?
>
> Thanks
>
> Stephane
>
>
>
> --
> Kernelnewbies: Help each other learn about the Linux kernel.
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> FAQ: http://kernelnewbies.org/faq/
>
>
--
Brandon Niemczyk
http://bniemczyk.doesntexist.com
--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive: http://mail.nl.linux.org/kernelnewbies/
FAQ: http://kernelnewbies.org/faq/
