Re: [RESEND PATCH 4.0-rc5 v19 6/6] ARM: Add support for on-demand backtrace of other CPUs

[Hillf Danton]

> 
> +void ipi_cpu_backtrace(struct pt_regs *regs)
> +{
> +	int cpu = smp_processor_id();
> +
> +	if (cpumask_test_cpu(cpu, to_cpumask(backtrace_mask))) {
> +		printk_nmi_backtrace_this_cpu_begin();
> +		pr_warn("FIQ backtrace for cpu %d\n", cpu);
> +		if (regs != NULL)
> +			show_regs(regs);
> +		else
> +			dump_stack();

Help more if we could print both register and stack info.

> +		printk_nmi_backtrace_this_cpu_end();
> +
> +		cpumask_clear_cpu(cpu, to_cpumask(backtrace_mask));
> +	}
> +}



--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/