[pkg-fetchmail-maint] Bug#186739: marked as done (SSL-POP3 closes
connection when feeding to local SMTP takes too long ->
fetchmail dies with signal 13)
Debian Bug Tracking System
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Sun Jul 31 10:18:06 UTC 2005
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From: "Ralf G. R. Bergs" <rabe at RWTH-Aachen.DE>
To: Debian Bug Tracking System <submit at bugs.debian.org>
Subject: SSL-POP3 closes connection when feeding to local SMTP takes too long -> fetchmail dies with signal 13
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Date: Sat, 29 Mar 2003 15:38:31 +0100
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Package: fetchmail-ssl
Version: 5.9.11-6.2
Severity: important
I'm running SpamAssassin on my local machine. It's invoked using sa-exim
during SMTP time (i.e. before my local Exim has accepted the message
so that it can bounce it during the SMTP phase in case it's spam.)
Since a week or so I have one host that I poll via POP3-over-SSL. Sometimes
(for reasons I can't find out) the SpamAssassin "spamd" process takes
"forever" to complete, so I've written a small cron job that kills Exim
processes that are running since more than 15 minutes wall time. Whenever
this happens while fetchmail is trying to feed a message it has just
fetched from the SSL-POP3 server fetchmail dies with the following
message (longer syslog snippet follows):
============================= 8x ===========================
Mar 29 05:20:11 Server fetchmail[25165]: awakened at Sat Mar 29 05:20:11 2003
Mar 29 05:20:17 Server fetchmail[25165]: 5.9.11 querying MailServer (protocol POP3) at Sat Mar 29 05:20:17 2003: poll started
Mar 29 05:20:17 Server fetchmail[25165]: Issuer Organization: <Issuer's Organization>
Mar 29 05:20:17 Server fetchmail[25165]: Issuer CommonName: <Issuer's CommonName>
Mar 29 05:20:17 Server fetchmail[25165]: Server CommonName: <Server's CommonName>
Mar 29 05:20:17 Server fetchmail[25165]: Server CommonName mismatch: my.domain != mailhost.my.domain
Mar 29 05:20:17 Server fetchmail[25165]: Server key fingerprint: 00:01:02:03:04:05:06:07:08:09:0a:0b:0c:0d:0e:0f
Mar 29 05:20:17 Server fetchmail[25165]: Warning: server certificate verification: unable to get local issuer certificate
Mar 29 05:20:17 Server fetchmail[25165]: Issuer Organization: <Issuer's Organization>
Mar 29 05:20:17 Server fetchmail[25165]: Issuer CommonName: <Issuer's CommonName>
Mar 29 05:20:17 Server fetchmail[25165]: Server CommonName: <Server's CommonName>
Mar 29 05:20:17 Server fetchmail[25165]: Server CommonName mismatch: my.domain != mailhost.my.domain
Mar 29 05:20:17 Server fetchmail[25165]: Warning: server certificate verification: certificate not trusted
Mar 29 05:20:17 Server fetchmail[25165]: Issuer Organization: <Issuer's Organization>
Mar 29 05:20:17 Server fetchmail[25165]: Issuer CommonName: <Issuer's CommonName>
Mar 29 05:20:17 Server fetchmail[25165]: Server CommonName: <Server's CommonName>
Mar 29 05:20:17 Server fetchmail[25165]: Server CommonName mismatch: my.domain != mailhost.my.domain
Mar 29 05:20:17 Server fetchmail[25165]: Warning: server certificate verification: unable to verify the first certificate
Mar 29 05:20:17 Server fetchmail[25165]: POP3< +OK ready <32674.1048911625 at our.pop3.server>
Mar 29 05:20:17 Server fetchmail[25165]: POP3> CAPA
Mar 29 05:20:18 Server fetchmail[25165]: POP3< +OK Capability list follows
Mar 29 05:20:18 Server fetchmail[25165]: POP3< TOP
Mar 29 05:20:18 Server fetchmail[25165]: POP3< USER
Mar 29 05:20:18 Server fetchmail[25165]: POP3< LOGIN-DELAY 0
Mar 29 05:20:18 Server fetchmail[25165]: POP3< EXPIRE 0
Mar 29 05:20:18 Server fetchmail[25165]: POP3< UIDL
Mar 29 05:20:18 Server fetchmail[25165]: POP3< RESP-CODES
Mar 29 05:20:18 Server fetchmail[25165]: POP3< AUTH-RESP-CODE
Mar 29 05:20:18 Server fetchmail[25165]: POP3< X-MANGLE
Mar 29 05:20:18 Server fetchmail[25165]: POP3< X-MACRO
Mar 29 05:20:18 Server fetchmail[25165]: POP3< X-LOCALTIME Sat, 29 Mar 2003 05:20:25 +0100
Mar 29 05:20:18 Server fetchmail[25165]: POP3< .
Mar 29 05:20:18 Server fetchmail[25165]: POP3> USER username
Mar 29 05:20:18 Server fetchmail[25165]: POP3< +OK Password required for username.
Mar 29 05:20:18 Server fetchmail[25165]: POP3> PASS
Mar 29 05:20:18 Server fetchmail[25165]: POP3< +OK username has 1 visible message (0 hidden) in 14233 octets.
Mar 29 05:20:21 Server fetchmail[25165]: POP3> STAT
Mar 29 05:20:21 Server fetchmail[25165]: POP3< +OK 1 14233
Mar 29 05:20:21 Server fetchmail[25165]: 1 message for username at our.pop3.server (14233 octets).
Mar 29 05:20:21 Server fetchmail[25165]: POP3> LIST
Mar 29 05:20:21 Server fetchmail[25165]: POP3< +OK 1 visible messages (14233 octets)
Mar 29 05:20:21 Server fetchmail[25165]: POP3< 1 14233
Mar 29 05:20:21 Server fetchmail[25165]: POP3< .
Mar 29 05:20:21 Server fetchmail[25165]: POP3> RETR 1
Mar 29 05:20:21 Server fetchmail[25165]: POP3< +OK 14233 octets
Mar 29 05:20:21 Server fetchmail[25165]: reading message username at our.pop3.server:1 of 1 (14233 octets)
Mar 29 05:20:21 Server fetchmail[25165]: SMTP< 220 my.own.host ESMTP
Mar 29 05:20:21 Server fetchmail[25165]: SMTP> EHLO our.pop3.server
Mar 29 05:20:21 Server fetchmail[25165]: SMTP< 250-my.own.host Hello localhost [127.0.0.1]
Mar 29 05:20:21 Server fetchmail[25165]: SMTP< 250-SIZE 8388608
Mar 29 05:20:21 Server fetchmail[25165]: SMTP< 250-PIPELINING
Mar 29 05:20:21 Server fetchmail[25165]: SMTP< 250 HELP
Mar 29 05:20:21 Server fetchmail[25165]: SMTP> MAIL FROM:<the at spammer.net> SIZE=14233
Mar 29 05:20:21 Server fetchmail[25165]: SMTP< 250 OK
Mar 29 05:20:21 Server fetchmail[25165]: SMTP> RCPT TO:<username at localhost>
[time passes]
Mar 29 05:40:01 Server fetchmail[25165]: SMTP< 421 my.own.host: Service not available - closing connection
Mar 29 05:40:01 Server fetchmail[25165]: SMTP error: 421 my.own.host: Service not available - closing connection
Mar 29 05:40:01 Server fetchmail[25165]: SMTP listener doesn't like recipient address username at localhost'
Mar 29 05:40:01 Server fetchmail[25165]: SMTP< 220 my.own.host ESMTP
Mar 29 05:40:01 Server fetchmail[25165]: SMTP> HELO localhost
Mar 29 05:40:01 Server fetchmail[25165]: SMTP< 250 my.own.host Hello localhost [127.0.0.1]
Mar 29 05:40:02 Server fetchmail[25165]: SMTP> MAIL FROM:<FETCHMAIL-DAEMON at internal.non-public.host.name>
Mar 29 05:40:02 Server fetchmail[25165]: SMTP< 250 OK
Mar 29 05:40:02 Server fetchmail[25165]: SMTP> RCPT TO:<fetchmail>
Mar 29 05:40:02 Server fetchmail[25165]: SMTP< 250 Accepted
Mar 29 05:40:02 Server fetchmail[25165]: SMTP> DATA
Mar 29 05:40:02 Server fetchmail[25165]: SMTP< 354 Enter message, ending with "." on a line by itself
Mar 29 05:40:02 Server fetchmail[25165]: SMTP: (bounce-message body)
Mar 29 05:40:02 Server fetchmail[25165]: SMTP>. (EOM)
Mar 29 05:40:03 Server fetchmail[25165]: SMTP< 250 OK id=18z88Q-0006Zh-00
Mar 29 05:40:03 Server fetchmail[25165]: SMTP> QUIT
Mar 29 05:40:03 Server fetchmail[25165]: SMTP< 221 my.own.host closing connection
Mar 29 05:40:03 Server fetchmail[25165]: SMTP> RSET
Mar 29 05:40:03 Server fetchmail[25165]: not flushed
Mar 29 05:40:03 Server fetchmail[25165]: POP3> QUIT
Mar 29 05:40:03 Server fetchmail[25165]: POP3< -ERR POP timeout from our.pop3.server
Mar 29 05:40:03 Server fetchmail[25165]: POP timeout from our.pop3.server
Mar 29 05:40:03 Server fetchmail[25165]: 5.9.11 querying MailServer (protocol POP3) at Sat Mar 29 05:40:03 2003: poll completed
Mar 29 05:40:03 Server fetchmail[25165]: Query status=4 (PROTOCOL)
Mar 29 05:40:03 Server fetchmail[25165]: terminated with signal 13
============================= 8x ===========================
Note that the SSL connection IS established altho there is a problem
with certificate trust (which I don't bother about since I'm not too
paranoid; I know that all is fine with the server :-)
I'm seeing these crashes ONLY since I started polling the one host
using SSL. Before that I've NEVER seen this, and I'm running fetchmail
since years.
-- System Information
Debian Release: 3.0
Architecture: i386
Kernel: Linux Server 2.4.19-xfs #1 Sat Nov 23 17:19:23 CET 2002 i586
Locale: LANG=C, LC_CTYPE=C
Versions of packages fetchmail-ssl depends on:
ii fetchmail-common 5.9.11-6.2 POP3, APOP, IMAP mail gatherer/for
ii libc6 2.2.5-11.2 GNU C Library: Shared libraries an
ii libssl0.9.6 0.9.6g-0.woody.1 SSL shared libraries
---------------------------------------
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for 186739-done at bugs.debian.org; Sun, 31 Jul 2005 10:43:13 +0200
Message-ID: <42EC8F21.3040206 at RWTH-Aachen.DE>
Date: Sun, 31 Jul 2005 10:43:13 +0200
From: "Ralf G. R. Bergs" <rabe at RWTH-Aachen.DE>
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To: 186739-done at bugs.debian.org
Subject: Can't reproduce
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I'm sorry but I no longer have the means of rebuilding the scenario from
out of my original report -- it's more than 2 years ago since then... :-)
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