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

Guilherme G. Piccoli gpiccoli at linux.vnet.ibm.com
Wed Feb 22 00:42:16 AEDT 2017

On 02/21/2017 02:33 AM, Michael Ellerman wrote:
> Michael Ellerman <mpe at ellerman.id.au> writes:
>> "Guilherme G. Piccoli" <gpiccoli at 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.



> cheers

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