On Thu, Jun 26, 2008 at 02:29:58PM +0200, monstr@xxxxxxxxx wrote:
> +static int kstack_depth_to_print = 24;
> +
x86 has a sysctl for this. It may be worth making this non-static and
generalizing the ifdef case. Plenty of other architectures could benefit
from this also.
> +void show_trace(struct task_struct *task, unsigned long *stack)
> +{
> + unsigned long addr;
> +
> + if (!stack)
> + stack = (unsigned long *)&stack;
> +
> + printk(KERN_INFO "Call Trace: ");
> +#ifdef CONFIG_KALLSYMS
> + printk(KERN_INFO "\n");
> +#endif
> + while (!kstack_end(stack)) {
> + addr = *stack++;
> + if (__kernel_text_address(addr)) {
> + printk(KERN_INFO "[<%08lx>] ", addr);
> + print_symbol("%s\n", addr);
Use print_ip_sym() here for future-proofing.
> + }
> + }
> + printk(KERN_INFO "\n");
And here you can:
if (!tsk)
tsk = current;
debug_show_held_locks(tsk);
> +}
> +
for when you get around to implementing lockdep.
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