BUG in tty_open when using containers and ptrace

Grzegorz Nosek root at localdomain.pl
Sun Jul 5 13:35:24 PDT 2009

On nie, lip 05, 2009 at 10:00:58 +0200, Môshe van der Sterre wrote:
> On Sat, 4 Jul 2009 15:28:52 +0200, Grzegorz Nosek <root at localdomain.pl>
> wrote:
> > Sorry for digging up such an old thread but I have apparently been
> > bitten by the same bug.
> Ok.
> Unfortunately, I have had no opportunity to put time into this bug,
> and have not been able to provide the info Serge requested.
> > I've been playing with libvirt 0.6.4 (which
> > mounts devpts with option newinstance) and I got the oops below
> > while strace'ing container init (upstart actually, got SIGINT and was
> > about to exit; sorry, no strace available but I remember nothing
> > extraordinary except for a "+++ Killed by SIGSEGV +++" at the end).
> Your bug seems the same. I had not noticed it using unmodified lxc tools,
> but apparently it is present in your case. 
> I'll be following this, and reply if circumstances permit.

Can/could you reliably trigger the bug? I managed to kill the box
twice by poking at random but I'm not sure what exact steps are needed.

Best regards,
 Grzegorz Nosek

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