From: ebiederm@xmission.com (Eric W. Biederman)
To: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Cc: Patrick McHardy <kaber@trash.net>, Jeff Garzik <jeff@garzik.org>,
YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>,
netdev@vger.kernel.org, jamal <hadi@cyberus.ca>,
Linux Containers <containers@lists.osdl.org>,
Ben Greear <greearb@candelatech.com>,
Stephen Hemminger <shemminger@linux-foundation.org>,
David Miller <davem@davemloft.net>
Subject: Re: [RFD] L2 Network namespace infrastructure
Date: Sat, 23 Jun 2007 14:31:52 -0600 [thread overview]
Message-ID: <m1r6o28laf.fsf@ebiederm.dsl.xmission.com> (raw)
In-Reply-To: <467D8056.1000307@gmx.net> (Carl-Daniel Hailfinger's message of "Sat, 23 Jun 2007 22:19:34 +0200")
Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> writes:
> Can one namespace DoS other namespaces' access to the routing cache?
> Two scenarios come to mind:
> * provoking hash collisions
> * lock contention (sorry, haven't checked whether/how we do locking)
My initial expectation is that the protections we have to prevent one user from
performing a DoS on another user generally cover the cases between namespaces as
well.
Further in general global caches and global resource management is more efficient
then per namespace management.
Eric
next prev parent reply other threads:[~2007-06-23 20:37 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-22 19:39 [RFD] L2 Network namespace infrastructure Eric W. Biederman
2007-06-22 21:22 ` [PATCH] net: Basic network " Eric W. Biederman
2007-06-23 10:40 ` [RFD] L2 Network " Patrick McHardy
2007-06-23 15:20 ` Ben Greear
2007-06-23 17:26 ` Eric W. Biederman
2007-06-23 20:09 ` Ben Greear
2007-06-23 20:39 ` Eric W. Biederman
2007-06-23 20:44 ` Ben Greear
2007-06-23 17:26 ` Stephen Hemminger
2007-06-23 17:55 ` Eric W. Biederman
2007-06-23 20:03 ` Ben Greear
2007-06-27 14:41 ` [Devel] " Kirill Korotaev
2007-06-23 17:19 ` Eric W. Biederman
2007-06-23 18:00 ` Patrick McHardy
2007-06-23 19:08 ` Eric W. Biederman
2007-06-23 20:19 ` Carl-Daniel Hailfinger
2007-06-23 20:31 ` Eric W. Biederman [this message]
2007-06-23 20:57 ` David Miller
2007-06-23 21:22 ` Benny Amorsen
2007-06-24 5:39 ` David Miller
2007-06-23 21:41 ` Eric W. Biederman
2007-06-24 5:45 ` David Miller
2007-06-24 12:58 ` Eric W. Biederman
2007-06-25 2:39 ` David Miller
2007-06-26 15:32 ` Eric W. Biederman
2007-06-23 22:15 ` Jeff Garzik
2007-06-23 22:56 ` Eric W. Biederman
2007-06-24 1:28 ` Jeff Garzik
2007-06-25 15:23 ` Serge E. Hallyn
2007-06-27 15:38 ` [Devel] " Kirill Korotaev
2007-06-24 5:48 ` David Miller
2007-06-24 10:25 ` Benny Amorsen
2007-06-24 12:38 ` Eric W. Biederman
2007-06-25 15:11 ` Serge E. Hallyn
2007-06-28 14:53 ` Kirill Korotaev
2007-06-27 14:39 ` [Devel] " Kirill Korotaev
2007-06-27 14:45 ` Patrick McHardy
2007-06-27 14:56 ` Ben Greear
2007-06-28 13:12 ` Kirill Korotaev
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