Re: NOHZ: WARNING: at arch/x86/kernel/smp.c:123native_smp_send_reschedule

From: Borislav Petkov
Date: Fri May 10 2013 - 05:40:21 EST


On Fri, May 10, 2013 at 11:37:29AM +0200, Ingo Molnar wrote:
> The pattern I use in such cases is:
>
> if (WARN_ONCE(!cpu_online(cpu))) {
> printk("%d %d\n", cpu, smp_processor_id());
> dump_stack();
> }

Cool, and WARN_ONCE dumps stack already so:

if (WARN_ONCE(!cpu_online(cpu)))
printk("%d %d\n", cpu, smp_processor_id());

Nice.

--
Regards/Gruss,
Boris.

Sent from a fat crate under my desk. Formatting is fine.
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