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From: David Brownell <david-b@pacbell.net>
To: linux-kernel@vger.kernel.org
Subject: Re: Linux 2.6.11-rc2
Date: Sun, 23 Jan 2005 22:51:42 -0800	[thread overview]
Message-ID: <200501232251.42394.david-b@pacbell.net> (raw)

I'm seeing a problem with TCP as accessed through KMail (SuSE 9.2, x86_64).
But oddly enough, only for sending mail, not reading it; and not through
other (reading) applications... it's a regression with respect to rc1 and
earlier kernels.  Basically, it can only send REALLY TINY emails...

What ethereal shows me is roughly:

 - SMTP connect, initial handshake, ok (ACKed later)
 - Send two 1500 byte Ethernet packets
 - Each gets an ICMP destination unreachable, frag needed, next hop MTU 1492
 - ... all retransmits are 1500 bytes not 1492, triggering ICMPs ...

Naturally the connection goes nowhere.  

- Dave

             reply	other threads:[~2005-01-24  6:52 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-01-24  6:51 David Brownell [this message]
2005-01-24 18:05 ` Linux 2.6.11-rc2 Martin Josefsson
2005-01-24 21:13   ` David Brownell
2005-01-25 18:35 ` David Ford
2005-01-25 18:54   ` David Brownell
2005-01-27  9:02     ` 2.6.11-rc2 TCP ignores PMTU ICMP (Re: Linux 2.6.11-rc2) Janos Farkas
2005-01-27 19:28       ` David Brownell
2005-01-27 20:00         ` Janos Farkas
2005-01-27 23:11         ` David Brownell
2005-01-27 23:41           ` David S. Miller
2005-01-28  1:33             ` Patrick McHardy
2005-01-28  3:00               ` Rusty Russell
2005-01-28 14:04               ` Art Haas
2005-01-31 22:13               ` Bill Davidsen
  -- strict thread matches above, loose matches on Subject: below --
2005-01-22  2:13 Linux 2.6.11-rc2 Linus Torvalds
2005-01-22  6:32 ` Udo A. Steinberg
2005-01-22 14:04   ` Martin Josefsson
2005-01-22 20:57     ` Udo A. Steinberg
2005-01-22 21:05       ` Martin Josefsson
2005-01-22 21:15       ` Linus Torvalds
2005-01-22 23:54     ` sean
2005-01-23  0:34       ` Martin Josefsson
2005-01-23 17:26         ` sean
2005-01-23 21:11 ` Magnus Määttä
2005-01-24 10:43   ` Adrian Bunk
2005-01-24 18:23     ` Magnus Määttä

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