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From: Matt Mackall <mpm@selenic.com>
To: David Miller <davem@davemloft.net>
Cc: ilpo.jarvinen@helsinki.fi, linux-kernel@vger.kernel.org,
	netdev@vger.kernel.org
Subject: Re: [PATCH] Stop scaring users with "treason uncloaked!"
Date: Thu, 18 Dec 2008 21:49:21 -0600	[thread overview]
Message-ID: <1229658561.3726.602.camel@calx> (raw)
In-Reply-To: <20081218.161513.241236470.davem@davemloft.net>

On Thu, 2008-12-18 at 16:15 -0800, David Miller wrote:
> From: Matt Mackall <mpm@selenic.com>
> Date: Thu, 18 Dec 2008 17:50:34 -0600
> 
> > If you want, we can instead say "Peer %d unexpectedly shrunk window...".
> > So long as the scary bit is gone, I don't care.
> 
> Since we have established that the blame is equally possible to
> be the local as the remote system, something like:
> 
> 	TCP: Unexpected shrink of advertised window detected ...
> 
> is probably the best.

How's this:

The original message was unhelpful and extremely alarming to our poor
users, despite its charm. Make it less frightening.

Signed-off-by: Matt Mackall <mpm@selenic.com>

diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index cc4e6d2..0170e91 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -299,14 +299,14 @@ static void tcp_retransmit_timer(struct sock *sk)
 #ifdef TCP_DEBUG
 		struct inet_sock *inet = inet_sk(sk);
 		if (sk->sk_family == AF_INET) {
-			LIMIT_NETDEBUG(KERN_DEBUG "TCP: Treason uncloaked! Peer %pI4:%u/%u shrinks window %u:%u. Repaired.\n",
+			LIMIT_NETDEBUG(KERN_DEBUG "TCP: Peer %pI4:%u/%u unexpectedly shrunk window %u:%u (repaired)\n",
 			       &inet->daddr, ntohs(inet->dport),
 			       inet->num, tp->snd_una, tp->snd_nxt);
 		}
 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
 		else if (sk->sk_family == AF_INET6) {
 			struct ipv6_pinfo *np = inet6_sk(sk);
-			LIMIT_NETDEBUG(KERN_DEBUG "TCP: Treason uncloaked! Peer %pI6:%u/%u shrinks window %u:%u. Repaired.\n",
+			LIMIT_NETDEBUG(KERN_DEBUG "TCP: Peer %pI6:%u/%u unexpectedly shrunk window %u:%u (repaired)\n",
 			       &np->daddr, ntohs(inet->dport),
 			       inet->num, tp->snd_una, tp->snd_nxt);
 		}


-- 
Mathematics is the supreme nostalgia of our time.


  reply	other threads:[~2008-12-19  3:50 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-18 22:16 [PATCH] Stop scaring users with "treason uncloaked!" Matt Mackall
2008-12-18 22:33 ` Ilpo Järvinen
2008-12-18 22:36   ` Herbert Xu
2008-12-18 23:50   ` Matt Mackall
2008-12-19  0:15     ` David Miller
2008-12-19  3:49       ` Matt Mackall [this message]
2008-12-19  3:54         ` David Miller
2008-12-19 18:13       ` markus reichelt
2008-12-19  0:08   ` David Miller
2008-12-18 22:44 ` Herbert Xu
2008-12-18 22:49   ` Alan Cox
2008-12-18 23:02     ` Herbert Xu
2008-12-18 23:14       ` Alan Cox
2008-12-19  0:07         ` David Miller
2008-12-18 23:06   ` Matt Mackall
2008-12-19  0:45     ` David Schwartz
2008-12-19  0:55       ` Krzysztof Halasa
2008-12-19  0:58       ` Rick Jones
2009-01-26 17:46     ` Lennart Sorensen

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