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Date:      Fri, 18 Jan 2008 23:45:32 +0000
From:      "Christian Walther" <cptsalek@gmail.com>
To:        multimedia@freebsd.org
Subject:   audio/jack: jackd fails to start
Message-ID:  <14989d6e0801181545u67af699ak2576f9c3c46af513@mail.gmail.com>

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Hi,

today I installed audio/jack as needed for audio/ardour.
The problem is that ardour2 fails to initialize jackd during startup. Trying

$ jackd -d oss

gives the same error message:

jackd 0.103.0
Copyright 2001-2005 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details

JACK compiled with System V SHM support.
loading driver ..
OSS: failed to open device /dev/dsp: oss_driver.c@527, errno=2
cannot start driver
zsh: segmentation fault  jackd -d oss

I tried the following steps to solve this issue:
- Rebuilt jack without CFLAGS defined for optimization
- Rebuilt kernel + world with sources from todays stable, uname says:
FreeBSD fairy.alashan.de 6.3-STABLE FreeBSD 6.3-STABLE #0: Fri Jan 18
23:51:25 UTC 2008     zoot@fairy:/usr/obj/usr/src/sys/FAIRY  i386
- Rebuilt jack afterwards (without CFLAGS), too

So far nothing helped. I did a truss on "jackd -d oss" and I guess the
following line is the most interesting one:

open("",O_APPEND|O_SHLOCK|O_EXLOCK|O_ASYNC|O_FSYNC|O_CREAT|O_TRUNC|O_EXCL|O_NOCTTY|O_DIRECT|0xbf8e5000,05003243460)
= 0 (0x0)

Is this a known issue and/or does anybody know how to solve it?

Christian



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