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Bug#304136: marked as done (cupsys: cupsd hangs on blocking sendto while browsing for other cups servers)

Your message dated Sun, 1 Jun 2008 23:09:06 +0200
with message-id <20080601210906.GB6509@piware.de>
and subject line Cleaning up old bug reports
has caused the Debian Bug report #304136,
regarding cupsys: cupsd hangs on blocking sendto while browsing for other cups servers
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
304136: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=304136
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: cupsys
Version: 1.1.23-7
Severity: important


I had problems with cupsd hanging after a variable period of use.
I was able to track it down to the fact that cupsd was blocking forever
at sendto's of messages it was broadcasting on a network as part of
it's "browsing" scheme. 
SUGGESTED FIX: change the mode of the socket descriptor to non-blocking!

Further explanation:
My system was installed with BrowseAddress set to "@LOCAL" 
which cupsd apparently interpreted to mean all of my networks...
in particular, the problem i had was the "network" that connects me to
my DSL modem.  Not what one might expect by "@LOCAL" but hey...
I'm not entirely sure why the socket filled up (causing the blocking)...
(i do have a firewall installed).
But changing the configuration to specify only my local network fixed
the problem.

It would be nice if other people didn't have to waste the time that i
did... making the socket non-blocking seems simple enough.
Perhaps some fix to the resolution of "@LOCAL" might be a good idea
also...

Thanks,
Ted Merrill


-- System Information:
Debian Release: 3.1
  APT prefers unstable
  APT policy: (990, 'unstable'), (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.7-1-686-smp
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1) (ignored: LC_ALL set to en_US)

Versions of packages cupsys depends on:
ii  adduser                     3.63         Add and remove users and groups
ii  debconf                     1.4.46       Debian configuration management sy
ii  libc6                       2.3.2.ds1-20 GNU C Library: Shared libraries an
ii  libcupsimage2               1.1.23-7     Common UNIX Printing System(tm) - 
ii  libcupsys2-gnutls10         1.1.23-7     Common UNIX Printing System(tm) - 
ii  libgnutls11                 1.0.16-13    GNU TLS library - runtime library
ii  libpam0g                    0.76-22      Pluggable Authentication Modules l
ii  libpaper1                   1.1.14-3     Library for handling paper charact
ii  libslp1                     1.0.11a-2    OpenSLP libraries
ii  patch                       2.5.9-2      Apply a diff file to an original
ii  perl-modules                5.8.4-8      Core Perl modules
ii  xpdf-utils                  3.00-13      Portable Document Format (PDF) sui
ii  zlib1g                      1:1.2.2-4    compression library - runtime

-- debconf information:
* cupsys/raw-print: true
  cupsys/lpr-backend-setuid: false
* cupsys/backend: ipp, lpd, parallel, serial, socket, usb

--- End Message ---
--- Begin Message --- 
Dear bug submitter,

This bug was reported against a very old version of cups (older than
in the current stable Debian version "Etch"). About a year ago,
Martin-Eric Racine asked for feedback whether the bug still applied to
the current Debian Etch version, but we did not get any feedback. In
order to not keep around old, hardware-specific, and inactive bugs
around forever, I close this bug now.

Please report back if you still experience the problem with the
current version in Etch; if you can test Lenny/unstable, that would be
highly appreciated, of course. I will reopen this bug then.

Thank you for your report!

Martin
-- 
Martin Pitt                        | http://www.piware.de
Ubuntu Developer (www.ubuntu.com)  | Debian Developer  (www.debian.org)

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