Fwd: Linux/PowerPC jack issue

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Fwd: Linux/PowerPC jack issue

Nicola Mattei-2
Hi all,
in order to gather more informations on an issue that is affecting
linux users on powerpc architecture with a recent (>=0.102.20) version
of jack that is being debated on ardour-users (Here you can read the
entire thread http://www.nabble.com/Jack-problems-in-Fiesty-PPC-tf4203090.html
) I've compiled the lastest svn sources of jack with --enable-debug
configure flag.

Here is what I get.

jahmax@arkangelsk:~/src/jack$ jackd -d alsa -d hw:0 -p 1024 -n 16 -S -r 44100
jackd 0.107.2
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.
jack: 4860:13421777332 engine.c:jack_get_fifo_fd:3348:
/dev/shm/jack-1000/default/jack-ack-fifo-4860-0
jack: 4860:13421777610 engine.c:jack_get_fifo_fd:3392: opened
engine->fifo[0] == 5 (/dev/shm/jack-1000/default/jack-ack-fifo-4860-0)
loading driver ..
jack: 4860:13421781517 ../jack/engine.h:jack_lock_graph:181: acquiring
graph lock
jack: 4860:13421781705 ../jack/engine.h:jack_unlock_graph:193:
releasing graph lock
jack: 4860:13421781788 ../jack/engine.h:jack_lock_graph:181: acquiring
graph lock
jack: 4860:13421781870 ../jack/engine.h:jack_unlock_graph:193:
releasing graph lock
apparent rate = 44100
creating alsa driver ... hw:0|hw:0|1024|16|44100|0|0|nomon|swmeter|-|16bit
control device hw:0
configuring for 44100Hz, period = 1024 frames, buffer = 16 periods
ALSA: final selected sample format for capture: 16bit big-endian
ALSA: use 16 periods for capture
ALSA: final selected sample format for playback: 16bit big-endian
ALSA: use 16 periods for playback
jack: 4860:13421943598 engine.c:jack_server_thread:1473: start while
jack: 4860:13422159387 ../jack/engine.h:jack_lock_graph:181: acquiring
graph lock
jack: 4860:13422159700 engine.c:jack_deliver_event:2319: delivering
event (type 2)
jack: 4860:13422159775 engine.c:jack_deliver_event:2333: client
alsa_pcm is still alive
jack: 4860:13422159834 engine.c:jack_deliver_event:2420: event delivered
jack: 4860:13422159891 ../jack/engine.h:jack_unlock_graph:193:
releasing graph lock
jack: 4860:13422165420 ../jack/engine.h:jack_lock_graph:181: acquiring
graph lock
jack: 4860:13422165643 engine.c:jack_deliver_event:2319: delivering
event (type 2)
jack: 4860:13422165714 engine.c:jack_deliver_event:2333: client
alsa_pcm is still alive
jack: 4860:13422165772 engine.c:jack_deliver_event:2420: event delivered
jack: 4860:13422165828 ../jack/engine.h:jack_unlock_graph:193:
releasing graph lock
jack: 4860:13422165886 ../jack/engine.h:jack_lock_graph:181: acquiring
graph lock
jack: 4860:13422165943 ../jack/engine.h:jack_unlock_graph:193:
releasing graph lock
jack: 4860:13422166001 ../jack/engine.h:jack_lock_graph:181: acquiring
graph lock
jack: 4860:13422166057 engine.c:jack_deliver_event:2319: delivering
event (type 0)
jack: 4860:13422166114 engine.c:jack_deliver_event:2333: client
alsa_pcm is still alive
jack: 4860:13422166189 engine.c:jack_deliver_event:2420: event delivered
jack: 4860:13422166250 ../jack/engine.h:jack_unlock_graph:193:
releasing graph lock
Segmentation fault (core dumped)

Let me know if I can do something more (eg: run it with different
arguments, run it in gdb ,...)

Nicola

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Re: Fwd: Linux/PowerPC jack issue

Paul Davis
On Thu, 2007-08-23 at 12:44 +0200, Nicola Mattei wrote:
> Hi all,
> in order to gather more informations on an issue that is affecting
> linux users on powerpc architecture with a recent (>=0.102.20) version
> of jack that is being debated on ardour-users (Here you can read the
> entire thread http://www.nabble.com/Jack-problems-in-Fiesty-PPC-tf4203090.html
> ) I've compiled the lastest svn sources of jack with --enable-debug
> configure flag.
>
> Here is what I get.

 [ ... ]

> Let me know if I can do something more (eg: run it with different
> arguments, run it in gdb ,...)

run it in gdb. get a backtrace with "thread apply all bt"




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