Re: [PATCH 2/3] powerpc/xmon: drop the nobt option from xmon plus minor fixes

["Guilherme G. Piccoli" <gpiccoli@linux.vnet.ibm.com>]

On 02/21/2017 02:33 AM, Michael Ellerman wrote:
> Michael Ellerman <mpe@ellerman.id.au> writes:
>> "Guilherme G. Piccoli" <gpiccoli@linux.vnet.ibm.com> writes:
> ...
>>
>> Imagine you're debugging a machine and you drop into xmon to check
>> something, then drop out again.
>>
>> Then you go away and leave the box, and it crashes into xmon, but xmon
>> doesn't print a backtrace because you've already been in xmon. Usually
>> you can just get on the console and hit 't', but sometimes the machine
>> crashes so hard that xmon doesn't take input - in which case you now
>> have no backtrace. :sadface:
> 
> OK I read your patch wrong, the above won't happen.
> 
> But I still don't think we need any of the auto back trace suppression.

Just to clarify, so do you think we always should print the backtrace
automatically, correctly? I can change it and resend the patch if you want.

Thanks,


Guilherme

> 
> cheers
>