Bug#581581: jack2: cause reboot after restart daemon

[Vladimir Ipatov]

Package: jackd
Version: 1.9.5~dfsg-13
Severity: important

I'm using my firewire audiocard(Echo Audiofire 4) with ffado drivers. libffado, ffado-dbus-serverv, ffado-qt4-mixer and ffado-tools versions:
2.0.0-1
I'm using this versions because with the latest version, 2.0.0+svn1813-1, mixer don't start.

after upgrading jackd from 0.118+svn3796-3 to 1.9.5~dfsh-13 i noticed bug:
when i turn off my sound card, then turn it again and starting jackd, my computer reboots.
It happens when jackd starting, not when i turn on soundcard.
When i using jackd 0.118, my computer didn't reboot. That is why it seems not a hardware problem.
There are not any errors about this. The last messages are about normal turning off/turning on soundcard:

ieee1394: Node changed: 0-01:1023 -> 0-00:1023
ieee1394: Node suspended: ID:BUS[0-00:1023]  GUID[00148609c444c06e]
ieee1394: Node changed: 0-00:1023 -> 0-01:1023
ieee1394: Node resumed: ID:BUS[0-01:1023]  GUID[00148609c444c06e]


-- System Information:
Debian Release: 5.0.4
  APT prefers stable
  APT policy: (990, 'stable'), (500, 'unstable'), (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.26-2-xen-amd64 (SMP w/4 CPU cores)
Locale: LANG=ru_RU.UTF-8, LC_CTYPE=ru_RU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages jackd depends on:
ii  coreutils                6.10-6          The GNU core utilities
ii  debconf [debconf-2.0]    1.5.24          Debian configuration management sy
ii  libasound2               1.0.22-2        shared library for ALSA applicatio
ii  libc6                    2.10.2-7        Embedded GNU C Library: Shared lib
ii  libcelt0-0               0.7.1-1         The CELT codec runtime library
ii  libjack0                 1.9.5~dfsg-13   JACK Audio Connection Kit (librari
ii  libreadline6             6.1-2           GNU readline and history libraries
ii  libsamplerate0           0.1.4-1         audio rate conversion library
ii  libsndfile1              1.0.21-2        Library for reading/writing audio 

Versions of packages jackd recommends:
ii  jackd-firewire           1.9.5~dfsg-13   JACK Audio Connection Kit (FFADO a
ii  libpam-modules           1.0.1-5+lenny1  Pluggable Authentication Modules f
pn  qjackctl                 <none>          (no description available)

Versions of packages jackd suggests:
pn  jack-tools                    <none>     (no description available)
pn  libjackasyn0                  <none>     (no description available)
pn  meterbridge                   <none>     (no description available)

-- debconf information:
* jackd/tweak_rt_limits: true