[Lxc-users] Problem with core dumps generated from containers, apport

[Hans Feldt]

> -----Original Message-----
> From: Serge Hallyn [mailto:serge.hallyn at ubuntu.com]
> Sent: den 23 april 2013 14:52
> To: Hans Feldt
> Cc: lxc-users at lists.sourceforge.net
> Subject: Re: [Lxc-users] Problem with core dumps generated from
> containers, apport

> > 260 is the PID of my test program (sleep 1000) in the container. It of
> > course had another PID on the host...
> 
> Hm, well that's certainly surprising to me, but there it is, in
> fs/coredump.c:format_corename(): case 'p' uses task_tgid_vnr().
> 
> Would you like to send a patch upstream to add 'P' as an option for using the
> global pid?

Sorry this is out of my competence. I did check the code you pointed at and I think there's
a name space conversion thing missing before handing over the PID over to user space. I
could not find what function could do the trick.

As a workaround if I temporarily change the core_pattern to write to file instead, I
should get a readable useable core dump from a container process

Thanks,
Hans