From: Frederic Leroy <fredo@starox.org>
To: Damian Lukowski <damian@tvk.rwth-aachen.de>
Cc: "Ilpo Järvinen" <ilpo.jarvinen@helsinki.fi>,
Netdev <netdev@vger.kernel.org>,
"David Miller" <davem@davemloft.net>,
"Eric Dumazet" <eric.dumazet@gmail.com>,
"Herbert Xu" <herbert@gondor.apana.org.au>,
"Greg KH" <gregkh@suse.de>
Subject: Re: scp stalls mysteriously
Date: Thu, 3 Dec 2009 20:23:28 +0100 [thread overview]
Message-ID: <20091203202328.62d7551a@houba> (raw)
In-Reply-To: <4B17C6C3.1060000@tvk.rwth-aachen.de>
Le Thu, 03 Dec 2009 15:10:11 +0100,
Damian Lukowski <damian@tvk.rwth-aachen.de> a écrit :
> > I suppose adding || !tp->retrans_stamp into the false condition is
> > fine as long as we don't then have a connection that can cause a
> > connection to hang there forever for some reason (this needs to be
> > understood well enough, not just test driven in stables :-)).
> >
> >> Unluckily, I still cannot reproduce the scp stalls here, so it
> >> would be nice if Frederic printed retrans_stamp together with
> >> icsk_ca_state and icsk_retransmits, please.
> >
> > It wouldn't hurt to know tp->packets_out and tp->retrans_out too,
> > that might have some significant w.r.t what happens because of FRTO.
>
> I made a patch for Frederic with Codebase
> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
>
> Thanks for testing.
I made a new .11 trace with damian patch.
The copy went to the end.
http://www.starox.org/pub/scp_stall/scp_stall-houba.11-patch_damian.pcap.bz2
http://www.starox.org/pub/scp_stall/scp_stall-houba.11-patch_damian.dmesg.bz2
http://www.starox.org/pub/scp_stall/scp_stall-houba.11-patch_damian.proc_net_netstat-before.bz2
http://www.starox.org/pub/scp_stall/scp_stall-houba.11-patch_damian.proc_net_netstat-after.bz2
http://www.starox.org/pub/scp_stall/scp_stall-houba.11-patch_damian.sysctl_net.ipv4.tcp-before.bz2
--
Frédéric Leroy
next prev parent reply other threads:[~2009-12-03 19:23 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-27 21:35 scp stalls mysteriously Frederic Leroy
2009-11-27 22:12 ` Ilpo Järvinen
[not found] ` <20091128010156.1219012a@houba>
2009-11-28 11:31 ` Ilpo Järvinen
2009-11-29 22:13 ` Ilpo Järvinen
2009-11-30 18:50 ` Frederic Leroy
2009-11-30 19:10 ` Ilpo Järvinen
2009-11-30 20:18 ` Ilpo Järvinen
2009-11-30 20:37 ` Frederic Leroy
2009-11-30 21:37 ` Ilpo Järvinen
2009-11-30 22:19 ` Frederic Leroy
2009-12-01 20:19 ` Frederic Leroy
2009-12-01 20:27 ` Ilpo Järvinen
2009-12-02 7:59 ` Frederic Leroy
2009-12-02 12:59 ` Ilpo Järvinen
2009-12-02 15:44 ` Frederic Leroy
2009-12-02 16:05 ` Ilpo Järvinen
2009-12-02 17:34 ` Frederic Leroy
2009-12-02 19:17 ` Damian Lukowski
2009-12-03 8:59 ` Frederic Leroy
2009-12-03 10:29 ` Ilpo Järvinen
2009-12-03 10:34 ` David Miller
2009-12-03 10:48 ` Ilpo Järvinen
2009-12-03 12:19 ` Asdo
2009-12-03 11:57 ` Damian Lukowski
2009-12-03 12:19 ` Damian Lukowski
2009-12-03 12:49 ` Ilpo Järvinen
2009-12-03 14:10 ` Damian Lukowski
2009-12-03 19:23 ` Frederic Leroy [this message]
2009-12-03 20:34 ` Damian Lukowski
2009-12-03 22:03 ` Frederic Leroy
2009-12-04 10:41 ` Ilpo Järvinen
2009-12-04 9:36 ` Frederic Leroy
2009-12-04 11:14 ` Ilpo Järvinen
2009-12-04 13:58 ` Frederic Leroy
2009-12-04 15:09 ` Ilpo Järvinen
2009-12-03 20:36 ` Ilpo Järvinen
2009-12-03 21:37 ` Frederic Leroy
2009-12-05 22:32 ` Damian Lukowski
2009-12-06 10:29 ` Ilpo Järvinen
2009-12-06 17:48 ` Ilpo Järvinen
2009-12-06 22:44 ` Damian Lukowski
2009-12-06 23:09 ` Ilpo Järvinen
2009-12-06 20:32 ` Frederic Leroy
2009-12-07 14:01 ` Ilpo Järvinen
2009-12-07 22:18 ` Frederic Leroy
2009-12-07 22:38 ` Ilpo Järvinen
2009-12-09 4:54 ` David Miller
2009-12-03 12:11 ` Frederic Leroy
2009-12-03 12:44 ` Ilpo Järvinen
2009-12-03 13:37 ` Arnd Hannemann
2009-12-03 14:27 ` Arnd Hannemann
2009-12-03 14:36 ` Ilpo Järvinen
2009-12-03 15:34 ` Arnd Hannemann
2009-12-03 15:48 ` Ilpo Järvinen
2009-12-03 18:32 ` Greg KH
2009-12-03 21:37 ` David Miller
2009-12-03 8:56 ` Frederic Leroy
2009-11-30 21:24 ` Frederic Leroy
2009-11-30 21:26 ` Ilpo Järvinen
2009-11-30 21:54 ` Frederic Leroy
2009-11-27 22:22 ` Frederic Leroy
2009-11-27 22:28 ` Ilpo Järvinen
2009-11-27 22:30 ` Ilpo Järvinen
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