ThunderX Panic after r368370

[Michal Meloun]

On 06.12.2020 3:21, Marcel Flores wrote:
> Hi All,
> 
> Looks like the ThunderX started panicking at boot after r368370:
> 
> https://reviews.freebsd.org/rS368370
> 
>  From a verbose boot, it looks like it bails in gic0 redistributor setup(?):
> 
> gic0: CPU29 Re-Distributor woke up
> gic0: CPU24 enabled CPU interface via system registers
> gic0: CPU17 enabled CPU interface via system registers
> gic0: CPU29 enabled CPU interface via system registers
> done
> 
> Full Verbose boot:
> https://gist.github.com/mesflores/f026122495c8494d041bce04d30b15bb
> 
> I'm not really familiar with the details of the commit, but happy to test
> anything if anyone has any ideas.


Hi Marcel
are you able to get crashdump and do backtrace?
https://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug.html#kerneldebug-obtain
and
https://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug-gdb.html
If not, I'll make some debug patch.

It's weird, even though GIC is potentially affected by my patch, in this 
case the cpuid numbering was not changed.

Thanks,
Michal