quoted

This patch adds arch_trigger_all_cpu_backtrace() for mips architecture.

Don't forget your Signed-off-by

I'm sorry fot this. 

quoted

+static void arch_dump_stack(void *info)
+{
+ struct pt_regs *regs;  
+ 
+ regs = get_irq_regs();
+
+ if(regs)
+ show_regs(regs);
+
+ dump_stack();
+}
+
+void arch_trigger_all_cpu_backtrace(bool include_self)
+{
+ smp_call_function(arch_dump_stack, NULL, 1);

should this call arch_dump_stack directly too if include_self?

Currently, in case of mips there is no case include_self is true, so this is not a problem. 
arch_trigger_all_cpu_backtrace can only be called from trigger_allbutself_cpu_backtrace() in kernel/watchdog.c.
But as you said, if the case will be added, we should consider that.

Thanks.

Cheers
James