Date: Thu, 17 Aug 1995 01:36:06 +0200 (MET DST) From: jan@todonix.ping.de (Jan Wedekind) To: bugs@freebsd.org Subject: telnet / rlogin hangs ?! Message-ID: <m0sis0F-0006yYC@todonix.ping.de>
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Hi,
we just updated to 2.1.0-SNAP, running in the following new
problems;
after about 10 up to 20 hours of run-time the kernel or net software
partly refuses logins.
Everything else works fine: SMTP, NNTP etc.
from a linux system i get:
jan@todonix <520>telnet leary
Trying 193.100.14.4...
Connected to leary.ping.de.
Escape character is '^]'.
FreeBSD (leary) (ttyp0)
and no login prompt! But after typing return one time everything
is fine!
>From another FreeBSD (1.1.5) system i got:
jan@lilly <512>telnet leary
Trying 193.100.14.4...
Connected to leary.ping.de.
Escape character is '^]'.
FreeBSD (leary) (ttyp1)
Connection closed by foreign host.
jan@lilly <513>telnet leary
Trying 193.100.14.4...
Connected to leary.ping.de.
Escape character is '^]'.
FreeBSD (leary) (ttyp1)
Password:Connection closed by foreign host.
shortly after this the problems we got a login: prompt on FreeBSD,
but with rlogin we had to wait for about 2 minutes!
we took the telnet session and ktrace'd the mentioned rlogind process:
bash# kdump
17895 rlogind RET select 0
17895 rlogind CALL close(0x4)
17895 rlogind RET close 0
17895 rlogind CALL socket(0x2,0x2,0)
17895 rlogind RET socket 4
17895 rlogind CALL connect(0x4,0x8088010,0x10)
17895 rlogind RET connect 0
17895 rlogind CALL sendto(0x4,0xefbfc58c,0x1c,0,0,0)
17895 rlogind GIO fd 4 wrote 28 bytes
"\0\^D\^A\0\0\^A\0\0\0\0\0\0
#localhost\0\0\^A\0\^A"
17895 rlogind RET sendto 28/0x1c
17895 rlogind CALL select(0x5,0xefbfc344,0,0,0xefbfc33c)
repeatet several times, finally (1-3 min.) finishing in :
17895 rlogind CALL socket(0x2,0x2,0)
17895 rlogind RET socket 4
17895 rlogind CALL connect(0x4,0x8088010,0x10)
17895 rlogind RET connect 0
17895 rlogind CALL sendto(0x4,0xefbfc58c,0x35,0,0,0)
17895 rlogind GIO fd 4 wrote 53 bytes
"\0\^F\^A\0\0\^A\0\0\0\0\0\0\^T#my_very_good_friend\^Fdomain\^Dping\^Bd\
e\0\0\^A\0\^A"
17895 rlogind RET sendto 53/0x35
17895 rlogind CALL select(0x5,0xefbfc344,0,0,0xefbfc33c)
17895 rlogind RET select 1
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ hier we got the connection!
17895 rlogind CALL recvfrom(0x4,0xefbfcc24,0x400,0,0xefbfc364,0xefbfc338)
17895 rlogind GIO fd 4 read 53 bytes
"\0\^F\M^E\M^@\0\^A\0\0\0\0\0\0\^T#my_very_good_friend\^Fdomain\^Dping\
\^Bde\0\0\^A\0\^A"
17895 rlogind RET recvfrom 53/0x35
17895 rlogind CALL close(0x4)
17895 rlogind RET close 0
17895 rlogind CALL open(0x803b9b2,0,0x1b6)
17895 rlogind NAMI "/etc/hosts"
17895 rlogind RET open 4
17895 rlogind CALL fstat(0x4,0xefbfcf2c)
17895 rlogind RET fstat 0
17895 rlogind CALL read(0x4,0x11000,0x2000)
17895 rlogind GIO fd 4 read 514 bytes
"# $Id: hosts,v 1.4 1994/06/24 23:50:16 wollman Exp $
Of course you may've the whole ktrace.out - file; about
186 kB long.
many thanks for going on solving these problems,
Jan
--
PING e.V. Jan Wedekind (Kassenwart) jan@ping.de
Emil-Figge-Str. 85 Lindemannstr. 12 kasse@ping.de
44227 Dortmund 44137 Dortmund vorstand@ping.de
Tel.: 0231 / 97 91 - 0 Tel.: +49 (231) 13 44 04 info@ping.de
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