I didn't have time to follow this thread today, will try tomorrow. Perhaps this was already answered...
On 11/26, Ian Kent wrote: > > On Tue, 2014-11-25 at 22:52 +0100, Oleg Nesterov wrote: > > > > and probably we also need this for coredump helpers, we want them > > to be per-namespace. > > To save me some time could you point me to some of the related code > please. I don't normally play in that area. See call_usermodehelper_*() in do_coredump(). This has the same problems (and just in case, of course other problems, starting from the fact that core_pattern is global). We need the right root to find the binary, etc. > > > + switch_task_namespaces(current, ns); > > > > This doesn't look sane because this won't switch task_active_pid_ns(). > > I wondered about that too but I didn't design the open()/setns() No, I don't think we should use setns() in this case... > > And otoh. If we actually want to use the caller's mnt_ns/namespaces we > > could simply fork/reparent a child which will do execve ? > > Are you saying that the user space program should be modified to do > this? No, no, I meant that the kernel could do this (yes, not that trivial) on behalf of the caller's process. Oleg. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
