[Pkg-utopia-maintainers] Bug#407217: avahi-daemon/mt-daapd disappear from network after ~1 hour

[Jon Dowland]

Package: avahi-daemon
Version: 0.6.15-2
Severity: important

Hello, I use mt-daapd and thus avahi-daemon on a Thecus
n2100 embedded ARM box. I routinely find that the shares do
not appear on workstations on the same LAN after a period of
inactivity. Restarting the daemons via /etc/init.d results
in them re-appearing.

Here's an example, with times:

Tue Jan 16 19:32:10 GMT 2007

I am confident that mt-daapd and avahi-daemon were running
on the n2100 when I last looked. However neither the n2100
as a Workstation or as an Itunes share are present in
"avahi-discover" on my workstation, nor rhythmbox (my
primary daapd client).

Looking on the server, the mt-daapd and avahi-daemon
processes are indeed present. I restart mt-daapd and it
shows up in avahi-discover and rhythmbox on my client.

Tue Jan 16 21:58:32 GMT 2007

I've been away from the computer for about 90 minutes,
during which rhythmbox has been idle. On return, I see that
the mt-daapd share is not visible in rhythmbox anymore and
the workstation/itunes entries are missing from
avahi-discover.

Logging onto the server, the mt-daapd and avahi-daemon
processes are present. Looking at the logs (mt-daapd.log,
I've configured it to log outside of syslog), I can see
that I last played a tune 100 minutes ago. There are also
two further log messages:
    
        2007-01-16 20:19:20 (00084005): Session 1: Streaming file '207-the_cure-airlock-the_soundtrack.mp3' to 192.168.123.110 (offset 0)
        2007-01-16 20:50:24 (0008c005): Thread 30: Entering ws_returnerror (204: Logout Successful)
        2007-01-16 21:20:24 (00088004): Thread 29:  could not read: Timer expired

There is nothing further from avahi-daemon or from mt-daapd
in any other files (e.g. syslog).

I can turn up debugging for mt-daapd, but I'm not sure how
to do that for avahi-daemon, at least not cleanly: I may
file a separate wishlist bug to ask for support for this in
/etc/default/avahi-daemon or similar. For now I've hacked
the --debug option directly into /etc/init.d/avahi-daemon. 

I'll report back to this bug if I get more info as a result
of this hack.

Because the "workstation" entries disappear from
avahi-discover in addition to the itunes share, I think
this might be an avahi-daemon bug, rather than one
specific to mt-daapd.

Restarting mt-daapd results in the itunes share returning,
but not the workstation entry: restarting avahi-daemon
results in the workstation entry returning, but not the
itunes share.

-- System Information:
Debian Release: 4.0
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-3-686
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)

Versions of packages avahi-daemon depends on:
ii  adduser                      3.100       Add and remove users and groups
ii  dbus                         1.0.2-1     simple interprocess messaging syst
ii  libavahi-common3             0.6.15-2    Avahi common library
ii  libavahi-core4               0.6.15-2    Avahi's embeddable mDNS/DNS-SD lib
ii  libc6                        2.3.6.ds1-8 GNU C Library: Shared libraries
ii  libcap1                      1:1.10-14   support for getting/setting POSIX.
ii  libdaemon0                   0.10-1      lightweight C library for daemons
ii  libdbus-1-3                  1.0.2-1     simple interprocess messaging syst
ii  libexpat1                    1.95.8-3.3  XML parsing C library - runtime li

Versions of packages avahi-daemon recommends:
ii  libnss-mdns                   0.8-4.1    NSS module for Multicast DNS name 

-- no debconf information
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