[4012] in linux-net channel archive
Re: Strange Problem with Linux 2.0 TCP
daemon@ATHENA.MIT.EDU (Jon Lewis)
Wed Aug 14 07:53:19 1996
Date: Tue, 13 Aug 1996 03:54:52 -0400 (EDT)
From: Jon Lewis <jlewis@inorganic5.fdt.net>
To: Andi Kleen <andi@mlm.extern.lrz-muenchen.de>
cc: linux-net@vger.rutgers.edu
In-Reply-To: <199608111051.MAA23054@maja.mlm.extern.lrz-muenchen.de>
On Sun, 11 Aug 1996, Andi Kleen wrote:
> I just discovered that telnet to our main linux server (RH 3.0.3/2.0.8)
> doesn't work anymore. I tried to track the problem down and it looks
> like a TCP bug:
>
> Trying 141.84.33.1...
> Connected to maja.mlm.extern.lrz-muenchen.de.
> Escape character is '^]'.
>
> maja (MLM)
>
> and then nothing. ps shows that it hangs in the login process. strace
> on the login process shows that it hangs in the write to stdout, strace
> on the telnetd process shows this:
It sounds like the "stuck pty" bug that several other people have been
experiencing since 1.1.x. If you can determine that the telnets to the
server hang only on a certain pty, try grabbing that tty with screen.
Then enter a xon via control-a q. This is the only way I've found so far
to "unstick" a stuck pty.
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