Re: [patch] PID namespace design bug, workaround

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To: Ulrich Drepper <drepper@...>
Cc: Andrew Morton <akpm@...>, Ingo Molnar <mingo@...>, Linus Torvalds <torvalds@...>, <linux-kernel@...>, Sukadev Bhattiprolu <sukadev@...>, Serge Hallyn <serue@...>
Date: Friday, November 2, 2007 - 10:21 am

Ulrich Drepper wrote:

You pointed only one problem that is not a variation of "how do 
we handle the case when we pass our pid outside the namespace".

This problem with signals is now being resolved at IBM by Sukadev 
and Serge (I put them in Cc), so this is about to be fixed by the
time 2.6.24 releases (I hope).

As far as the "passing the pid outside the namespace" is concerned, 
is my answer "pids should never be used outside the namespace they
came from, otherwise userspace won't work as expected" satisfactory?

So is "everything else", you mentioned, covered with the problems
above?


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Messages in current thread:
[patch] PID namespace design bug, workaround, Ingo Molnar, (Thu Nov 1, 10:43 am)
Re: [patch] PID namespace design bug, workaround, Pavel Emelyanov, (Thu Nov 1, 11:02 am)
Re: [patch] PID namespace design bug, workaround, Ulrich Drepper, (Thu Nov 1, 10:53 am)
Re: [patch] PID namespace design bug, workaround, Ingo Molnar, (Thu Nov 1, 11:05 am)
Re: [patch] PID namespace design bug, workaround, Theodore Tso, (Thu Nov 1, 2:57 pm)
Re: [patch] PID namespace design bug, workaround, Ingo Molnar, (Thu Nov 1, 3:53 pm)
Re: [patch] PID namespace design bug, workaround, Ulrich Drepper, (Thu Nov 1, 8:23 pm)
Re: [patch] PID namespace design bug, workaround, Pavel Emelyanov, (Thu Nov 1, 10:51 am)
Re: [patch] PID namespace design bug, workaround, Ulrich Drepper, (Thu Nov 1, 10:56 am)
Re: [patch] PID namespace design bug, workaround, Dave Hansen, (Thu Nov 1, 12:12 pm)
Re: [patch] PID namespace design bug, workaround, Pavel Emelyanov, (Thu Nov 1, 11:05 am)
Re: [patch] PID namespace design bug, workaround, Ulrich Drepper, (Thu Nov 1, 8:21 pm)
Re: [patch] PID namespace design bug, workaround, Pavel Emelyanov, (Fri Nov 2, 3:55 am)
Re: [patch] PID namespace design bug, workaround, Andrew Morton, (Fri Nov 2, 4:04 am)
Re: [patch] PID namespace design bug, workaround, Dave Hansen, (Fri Nov 2, 1:30 pm)
Re: [patch] PID namespace design bug, workaround, Linus Torvalds, (Fri Nov 2, 1:39 pm)
Re: [patch] PID namespace design bug, workaround, Ingo Molnar, (Sat Nov 3, 4:12 pm)
Futexes and network filesystems., Er ic W. Biederman, (Tue Nov 20, 6:53 pm)
Re: Futexes and network filesystems., Kyle Moffett, (Wed Nov 21, 2:16 am)
Re: Futexes and network filesystems., Eric W. Biederman, (Wed Nov 21, 2:30 am)
Re: [patch] PID namespace design bug, workaround, Linus Torvalds, (Sat Nov 3, 6:40 pm)
Re: [patch] PID namespaces, Ingo Molnar, (Sun Nov 4, 6:38 am)
Re: [patch] PID namespaces, Denys Vlasenko, (Mon Nov 5, 10:47 am)
Re: [patch] PID namespaces, Dave Hansen, (Sun Nov 4, 4:12 pm)
Re: [patch] PID namespace design bug, workaround, Arjan van de Ven, (Sat Nov 3, 7:55 pm)
Re: [patch] PID namespace design bug, workaround, Nicholas Miell, (Sat Nov 3, 12:02 am)
Re: [patch] PID namespace design bug, workaround, Pavel Emelyanov, (Fri Nov 2, 4:14 am)
Re: [patch] PID namespace design bug, workaround, Ulrich Drepper, (Fri Nov 2, 10:05 am)
Re: [patch] PID namespace design bug, workaround, Pavel Emelyanov, (Fri Nov 2, 10:21 am)
Re: [patch] PID namespace design bug, workaround, Eric W. Biederman, (Sun Nov 4, 3:17 am)
Re: [patch] PID namespace design bug, workaround, Ulrich Drepper, (Fri Nov 2, 11:34 am)
Re: [patch] PID namespace design bug, workaround, Pavel Emelyanov, (Fri Nov 2, 11:58 am)
Re: [patch] PID namespace design bug, workaround, Ulrich Drepper, (Sat Nov 3, 12:34 am)
Re: [patch] PID namespace design bug, workaround, Pavel Emelyanov, (Tue Nov 6, 3:49 am)
Re: [patch] PID namespace design bug, workaround, Theodore Tso, (Fri Nov 2, 5:39 pm)
Re: [patch] PID namespace design bug, workaround, Peter Zijlstra, (Thu Nov 1, 10:56 am)
Re: [patch] PID namespace design bug, workaround, Pavel Emelyanov, (Thu Nov 1, 11:06 am)
Re: [patch] PID namespace design bug, workaround, Ingo Molnar, (Thu Nov 1, 11:17 am)
Re: [patch] PID namespace design bug, workaround, Pavel Emelyanov, (Thu Nov 1, 11:30 am)