Bug#581581: jack2: cause reboot after restart daemon

[Adrian Knoth]

On Fri, May 14, 2010 at 02:56:22AM +0400, Vladimir Ipatov wrote:

> 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.


That's weird. Can you investigate it? Is it an upstream bug? Please file
a bug report against the ffado package with the corresponding output.

The mixer clearly should work.


> 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.

Just to learn more about this: do you start jackd as root or as a user?
Normally, a user process should never be able to crash the machine.
OTOH, firewire is a little bit special, because it has write access to a
larger portion of the main memory.

However, jackd must not reboot the machine, that's for sure.


> ieee1394: Node changed: 0-01:1023 -> 0-00:1023

This is the old firewire stack. Any chance you could run it on Juju?
You'd need to upgrade your kernel to 2.6.32 or later.


Though jackd2 might trigger the behaviour, it must not reboot your
machine as long as you're not running jackd as root.

We surely need to investigate further...



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