[patch] Suggest running gdbserver for a PID in container

[Pedro Alves]

On 03/15/2016 10:07 PM, Jan Kratochvil wrote:
> Hi,
>
> currently
> 	gdb -p <pid from a container>
> will print:
> 	warning: Target and debugger are in different PID namespaces; thread lists and other data are likely unreliable
>
> BTW it is a bit lost in all the other messages.  Full screen output is in:
> 	https://sourceware.org/bugzilla/show_bug.cgi?id=19828
>
> It correctly states the problem but it does not say how to solve it.
>
> Is at least this little suggestion OK?

OK.

> Originally I wanted to suggest also the Docker "-p 1234:1234" parameter but
> I see the containers are more general topic than just Docker (even LxC etc.).
>
> According to Gary future GDBs should be able to work even without gdbserver.
> But currently gdbserver is still required.

Yes, when/if Infinity notes are accepted in glibc.

Thanks,
Pedro Alves