From: Andi Kleen <ak@suse.de>
To: "David S. Miller" <davem@redhat.com>
Cc: ak@suse.de, sim@netnation.com, linux-kernel@vger.kernel.org,
linux-net@vger.kernel.org
Subject: Re: Longstanding networking / SMP issue? (duplextest)
Date: Fri, 21 Feb 2003 11:45:41 +0100 [thread overview]
Message-ID: <20030221104541.GA18417@wotan.suse.de> (raw)
In-Reply-To: <20030221.021125.66547838.davem@redhat.com>
On Fri, Feb 21, 2003 at 02:11:25AM -0800, David S. Miller wrote:
> From: Andi Kleen <ak@suse.de>
> Date: Fri, 21 Feb 2003 11:22:58 +0100
>
> Doesn't work on preemptive, does it? How do you keep it on a single CPU
> when it runs in process context ?
>
> What runs in process context? ICMP responses are generated from BH's.
hmm, i was thinking about tcp process context, but you're right it can
only generate icmps for dead ports and that happens while still in
tcp_v4_rcv().
at least ipip.c will send icmps from process context (ipip_tunnel_xmit)
netfilter will probably do too.
-Andi
next prev parent reply other threads:[~2003-02-21 10:36 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20030219174757.GA5373@netnation.com.suse.lists.linux.kernel>
2003-02-20 7:52 ` Longstanding networking / SMP issue? (duplextest) Andi Kleen
2003-02-20 7:38 ` David S. Miller
2003-02-20 9:20 ` Simon Kirby
2003-02-20 9:34 ` Andi Kleen
2003-02-20 10:12 ` dada1
2003-02-20 10:54 ` Andi Kleen
2003-02-20 11:03 ` dada1
2003-02-21 4:24 ` David S. Miller
2003-02-21 7:27 ` Andi Kleen
2003-02-21 9:43 ` David S. Miller
2003-02-21 10:22 ` Andi Kleen
2003-02-21 10:11 ` David S. Miller
2003-02-21 10:45 ` Andi Kleen [this message]
2003-02-23 9:12 ` David S. Miller
2003-02-23 10:02 ` Christoph Hellwig
2003-02-23 9:55 ` David S. Miller
2003-02-23 10:30 ` Andi Kleen
2003-02-23 10:23 ` David S. Miller
2003-02-23 10:37 ` Christoph Hellwig
2003-02-23 9:58 ` David S. Miller
2003-02-21 15:15 ` Bill Davidsen
2003-02-19 17:47 Simon Kirby
2003-02-19 21:17 ` David S. Miller
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