On Tue, Aug 29, 2006 at 04:36:56PM +0200, Andi Kleen wrote:
> On Tuesday 29 August 2006 15:00, Borislav Petkov wrote:
> > On Tue, Aug 29, 2006 at 01:16:22PM +0200, Andi Kleen wrote:
> > >
> > > >
> > > > Without a hex dump of stack contents there's very little I can do.
> > >
> > > Borislav, if you can reproduce the crash please boot with kstack=2048 and send output
> > > of that.
> > Yeah,
> > that's a no-go, same output:
>
> Can you please try it with this debug patch?
>
> -Andi
>
> Index: linux/arch/x86_64/kernel/traps.c
Sorry,
but this patches x86_64 arch and mine is i386. I could change the
kstack_depth_to_print from 24 to 2048 in
linux/arch/i386/kernel/traps.c by hand instead but I don't have
a _show_stack function there, do I? Or maybe that is not at all necessary to see a
"proper" stack dump?
> ===================================================================
> --- linux.orig/arch/x86_64/kernel/traps.c
> +++ linux/arch/x86_64/kernel/traps.c
> @@ -106,7 +106,7 @@ static inline void preempt_conditional_c
> preempt_enable_no_resched();
> }
>
> -static int kstack_depth_to_print = 12;
> +static int kstack_depth_to_print = 2048;
> #ifdef CONFIG_STACK_UNWIND
> static int call_trace = 1;
> #else
> @@ -418,7 +418,7 @@ void show_stack(struct task_struct *tsk,
> void dump_stack(void)
> {
> unsigned long dummy;
> - show_trace(NULL, NULL, &dummy);
> + _show_stack(NULL, NULL, &dummy);
> }
>
> EXPORT_SYMBOL(dump_stack);
Regards,
Boris.
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