From: "Dâniel Fraga" <fragabr@gmail.com>
To: "Ilpo Järvinen" <ilpo.jarvinen@helsinki.fi>
Cc: David Miller <davem@davemloft.net>,
thomas.jarosch@intra2net.com, billfink@mindspring.com,
Netdev <netdev@vger.kernel.org>, Patrick Hardy <kaber@trash.net>,
netfilter-devel@vger.kernel.org, kadlec@blackhole.kfki.hu
Subject: Re: [PATCH] tcp FRTO: in-order-only "TCP proxy" fragility workaround
Date: Sun, 24 Aug 2008 16:38:43 -0300 [thread overview]
Message-ID: <20080824163843.33b4f890@tux> (raw)
In-Reply-To: <Pine.LNX.4.64.0808231736490.10712@wrl-59.cs.helsinki.fi>
On Sat, 23 Aug 2008 17:38:32 +0300 (EEST)
"Ilpo Järvinen" <ilpo.jarvinen@helsinki.fi> wrote:
> Thanks for verifying it!
Ops! i replied too fast! I just got a stalled connection again!
Important: these files were generated with the HTB patches applied.
Here are botch tcpdump files:
http://www.abusar.org/htb/dump-mail-server.log
http://www.abusar.org/htb/dump-mail-client.log
Both readmibs:
http://www.abusar.org/htb/readmibs-server.txt
http://www.abusar.org/htb/readmibs-client.txt
Here are both cat /proc/net/tcp:
http://www.abusar.org/htb/tcp-server.txt
http://www.abusar.org/htb/tcp-client.txt
I use the following to generate those dumps:
1) on the server:
tcpdump -s 0 -w dump-mail-server.log -i eth0 host 201.52.214.230
2) on the client:
tcpdump -s 0 -w dump-mail-client.log -i eth0 host teleporto.abusar.org and port 995
What happened?
1) the connection was stalled
2) these tcpdumps are the *best ones* I got because although I started them with
the connection already stalled, the connection suddenly is not stalled anymore,
and a few minutes later was stalled again...
3) I keep tcpdump running for more time
Ps: anyway I could notice that the only two services that
remain stalled is nntp, ftp, pop3 and smtp... http is never stalled,
neither ssh. It seems to affect only "old" protocols :)
Ps2: anyway, the htb patch seems to help, because the problem
took much longer to happen. With htb patches the problem happens one time a day.
Without the htb patches the problem happens more than one time a day.
Ps3: I really doesn't understand why "nmap -sS server"
"solves" the stalled connection issue.
Ps4: sorry for my hurry feedback before. I thought the problem had gone. Anyway,
I hope this time I provided the best data for you. Thanks.
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next prev parent reply other threads:[~2008-08-24 19:38 UTC|newest]
Thread overview: 118+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-26 8:47 Transfer stalls with NAT under 2.6.24.3 Sven Riedel
2008-03-26 9:24 ` Patrick McHardy
2008-03-26 10:21 ` Sven Riedel
2008-03-26 15:47 ` Patrick McHardy
2008-03-26 18:45 ` Jozsef Kadlecsik
2008-03-26 19:16 ` Krzysztof Oledzki
2008-03-31 6:53 ` Sven Riedel
2008-07-04 14:54 ` TCP connection stalls under 2.6.24.7 Thomas Jarosch
2008-07-04 20:58 ` Jozsef Kadlecsik
2008-07-04 21:04 ` Jozsef Kadlecsik
2008-07-07 9:18 ` Thomas Jarosch
2008-07-07 13:18 ` Thomas Jarosch
2008-07-10 13:17 ` Jozsef Kadlecsik
2008-07-10 14:12 ` Thomas Jarosch
2008-07-10 21:21 ` Jozsef Kadlecsik
2008-07-11 14:33 ` Thomas Jarosch
2008-07-15 11:47 ` Thomas Jarosch
2008-07-15 16:10 ` Thomas Jarosch
2008-07-15 18:30 ` Dâniel Fraga
2008-07-31 4:47 ` Dâniel Fraga
2008-07-31 7:39 ` Ilpo Järvinen
2008-08-02 12:24 ` Dâniel Fraga
2008-07-15 20:17 ` Ilpo Järvinen
2008-07-16 8:07 ` Thomas Jarosch
2008-07-16 9:03 ` Thomas Jarosch
2008-07-17 13:55 ` Ilpo Järvinen
2008-07-17 15:15 ` Thomas Jarosch
2008-07-17 15:53 ` Ilpo Järvinen
2008-07-18 9:14 ` Thomas Jarosch
2008-07-18 13:55 ` Ilpo Järvinen
2008-07-18 14:02 ` Thomas Jarosch
2008-07-19 7:35 ` Ilpo Järvinen
2008-07-25 10:00 ` Ilpo Järvinen
2008-07-25 13:00 ` Thomas Jarosch
2008-07-25 14:06 ` Ilpo Järvinen
2008-07-25 15:34 ` Thomas Jarosch
2008-07-31 7:39 ` Thomas Jarosch
2008-07-31 12:44 ` Dâniel Fraga
2008-07-31 13:47 ` Thomas Jarosch
2008-07-31 14:11 ` Dâniel Fraga
2008-08-06 18:53 ` Dâniel Fraga
2008-08-07 6:54 ` Ilpo Järvinen
2008-08-07 11:50 ` Denys Fedoryshchenko
2008-08-07 12:11 ` Thomas Jarosch
2008-08-07 12:14 ` Ilpo Järvinen
2008-08-07 12:23 ` Denys Fedoryshchenko
2008-08-08 9:56 ` Ilpo Järvinen
2008-08-08 10:32 ` Denys Fedoryshchenko
2008-08-07 11:33 ` [PATCH] tcp FRTO: in-order-only "TCP proxy" fragility workaround Ilpo Järvinen
2008-08-08 4:42 ` Bill Fink
2008-08-08 10:32 ` Ilpo Järvinen
2008-08-11 21:44 ` David Miller
2008-08-12 7:46 ` Thomas Jarosch
2008-08-12 8:18 ` David Miller
2008-08-12 17:43 ` Dâniel Fraga
2008-08-12 17:52 ` Ilpo Järvinen
2008-08-13 17:53 ` Dâniel Fraga
2008-08-13 18:34 ` Ilpo Järvinen
2008-08-15 4:34 ` Dâniel Fraga
2008-08-15 7:06 ` Ilpo Järvinen
2008-08-15 21:35 ` Dâniel Fraga
2008-08-15 22:06 ` Ilpo Järvinen
2008-08-15 23:57 ` Dâniel Fraga
2008-08-16 2:15 ` Dâniel Fraga
2008-08-16 7:10 ` Ilpo Järvinen
2008-08-16 19:18 ` Ilpo Järvinen
2008-08-17 0:36 ` Dâniel Fraga
2008-08-19 10:38 ` Ilpo Järvinen
2008-08-20 0:34 ` Dâniel Fraga
2008-08-20 7:57 ` Ilpo Järvinen
2008-08-20 12:37 ` Ilpo Järvinen
2008-08-22 21:32 ` Dâniel Fraga
2008-08-22 21:37 ` David Miller
2008-08-23 14:14 ` Dâniel Fraga
2008-08-23 14:38 ` Ilpo Järvinen
2008-08-24 19:38 ` Dâniel Fraga [this message]
2008-08-26 14:10 ` Ilpo Järvinen
2008-08-26 14:32 ` Ilpo Järvinen
2008-08-26 17:18 ` Dâniel Fraga
2008-08-26 20:40 ` Ilpo Järvinen
2008-08-26 21:17 ` Dâniel Fraga
2008-08-27 10:22 ` Ilpo Järvinen
2008-08-27 19:51 ` Dâniel Fraga
2008-08-27 20:32 ` Ilpo Järvinen
2008-08-27 20:50 ` Dâniel Fraga
2008-08-27 21:25 ` Ilpo Järvinen
2008-08-27 21:42 ` Dâniel Fraga
2008-08-27 22:24 ` Dâniel Fraga
2008-08-28 21:49 ` Dâniel Fraga
2008-08-29 13:07 ` Ilpo Järvinen
2008-08-29 17:41 ` Dâniel Fraga
2008-09-01 7:11 ` Ilpo Järvinen
2008-08-30 6:56 ` Dâniel Fraga
2008-09-01 7:11 ` Ilpo Järvinen
2008-09-07 8:17 ` Dâniel Fraga
2008-09-08 10:27 ` Ilpo Järvinen
2008-09-08 20:20 ` Dâniel Fraga
2008-09-11 13:44 ` Ilpo Järvinen
2008-09-11 17:30 ` Dâniel Fraga
2008-09-12 10:16 ` Ilpo Järvinen
2008-09-13 23:31 ` Dâniel Fraga
2008-09-16 12:10 ` Ilpo Järvinen
2008-09-16 14:24 ` Dâniel Fraga
2008-09-17 10:23 ` Ilpo Järvinen
2008-09-18 20:35 ` Dâniel Fraga
2008-09-18 21:04 ` Ilpo Järvinen
2008-09-21 3:02 ` Dâniel Fraga
2008-09-22 4:23 ` Dâniel Fraga
2008-09-22 11:22 ` Ilpo Järvinen
2008-09-22 16:13 ` Dâniel Fraga
2008-09-15 19:42 ` Dâniel Fraga
2008-09-11 18:12 ` Dâniel Fraga
2008-08-15 21:59 ` Dâniel Fraga
2008-08-13 8:00 ` Thomas Jarosch
2008-08-22 21:18 ` Ilpo Järvinen
2008-08-11 21:41 ` David Miller
-- strict thread matches above, loose matches on Subject: below --
2008-08-25 16:45 Thomas Jarosch
2008-08-26 12:03 ` Ilpo Järvinen
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