[PlanetCCRMA] problem on fedora 10, CCRMA, jack and terratec 22

[Gabriel]

On Sat, Nov 14, 2009 at 10:48:24AM -0800, Fernando Lopez-Lezcano wrote:
> On Sat, 2009-11-14 at 01:58 +0100, linux at gabriel-striewe.de wrote:
> > Hello,
> > 
> > I have just today started using CCRMA. I installed the distribution
> > using your installation notes (installing fedora 10, yum update,
> > adding ccrma repo, installing ccrma).
> > 
> > According to lspci, my soundcard is:
> > 
> > 00:06.0 Multimedia audio controller: VIA Technologies Inc. VT1720/24
> > [Envy24PT/HT] PCI Multi-Channel Audio Controller (rev 01)
> > 
> > Now, when I start jack using "jackd -R -dalsa", every few minutes I
> > get the error:
> > 
> > ALSA: poll time out, polled for 31999959 usecs
> > JackAudioDriver::ProcessAsync: read error, skip cycle
> > 
> > And when in qjackctl I try to connect audio system input to output, it
> > doesn't do anything, just in the shell window in which I started jack:
> > 
> > JackGraphManager::Connect already connected port_src = 1 port_dst = 3
> > JackGraphManager::Connect already connected port_src = 2 port_dst = 4
> > 
> > which seems strange to me, since it doesn't show the connections in
> > qjackctl.
> > 
> > cat /proc/asound/cards says:
> > 
> > 0 [ICE1724        ]: ICE1724 - ICEnsemble ICE1724
> >                       ICEnsemble ICE1724 at 0xe800, irq 17
> > 
> > I hope those error messages can give you a hint about what is
> > wrong. If there is any other output I can give you, please help..
> 
> Hmmmm, strange. The error message would suggest some sort of ALSA (the
> sound driver) problem. Does it happen only once?
> 
> What happens if you use different parameters?
>   jackd -R -d alsa -d hw:0 -p 1024 -n 3
> 
> You can also try starting jack from within qjackctl (set the parameters
> in the "Setup" tab. Then press the "Start" button and check the messages
> in the "Messages" pane. Start a simple jack client like Hydrogen, load
> one of the demo patterns and connect the audio outputs in qjackctl to
> the system outputs. You might need to tweak input/output levels in
> alsamixer (or better yet, in envy24control - but I don't remember if
> 1724 based cards are supported). 
> 
> -- Fernando
> 
> 

Hello, thanks for that. Today I took away my ICE1724 card and replaced
it with my old VIA card, as I mentioned in my earlier message
today. However, during the week I will come back to this issue. I just
for today didn't want into issues concerning having two sound cards in
the system.

However, I ran into one other problem. If I log onto my system
directly, locally, I log on, and then I start jack with jackd -R -d
alsa -d hw:0 -p 1024 -n 3 without problems. I do have a kernel bug,
this one:

Kernel failure message 1:
BUG: sleeping function called from invalid context IRQ-14(412) at arch/x86/mm/highmem_32.c:8
in_atomic():0 [00000000], irqs_disabled():1
Pid: 412, comm: IRQ-14 Not tainted 2.6.26.8-1.rt16.1.fc10.ccrma.i686.rt #1
 [<c041fe47>] __might_sleep+0xe8/0xed
 [<c041cd75>] kmap+0x42/0x55
 [<c0504250>] sg_copy_buffer+0xa6/0x16c
 [<c0504323>] sg_copy_to_buffer+0xd/0xf
 [<f88c9409>] atapi_qc_complete+0x25c/0x2b6 [libata]
 [<f88c35b5>] __ata_qc_complete+0x8e/0x93 [libata]
 [<f88c4211>] ata_qc_complete+0x197/0x19d [libata]
 [<f88cf999>] ata_hsm_qc_complete+0x9b/0xb3 [libata]
 [<f88cffb3>] ata_sff_hsm_move+0x602/0x64e [libata]
 [<c04233f0>] ? finish_task_switch+0x4b/0xf0
 [<c06446c1>] ? __rt_spin_lock+0x24/0x61
 [<f88d025e>] ata_sff_interrupt+0x153/0x1eb [libata]
 [<c04609a4>] handle_IRQ_event+0x49/0xe6
 [<c0460e03>] do_irqd+0x12b/0x229
 [<c0460cd8>] ? do_irqd+0x0/0x229
 [<c043aa9b>] kthread+0x3b/0x61
 [<c043aa60>] ? kthread+0x0/0x61
 [<c0405803>] kernel_thread_helper+0x7/0x10

However, it doesn't hinder jack and the other apps like qjackctl and
hydrogen from running. If I log in through ssh -Y from my Lapton
running Debian 5.0, it gives me the message:

could not open driver .so '/usr/lib/jack/jack_firewire.so': libffado.so: cannot open shared object file: No such file or directory
could not open component .so '/usr/lib/jack/jack_firewire.so': libffado.so: cannot open shared object file: No such file or directory
jackdmp 1.9.2
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2008 Grame.
jackdmp 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 server starting in realtime mode with priority 10
creating alsa driver ... hw:0|hw:0|1024|3|48000|0|0|nomon|swmeter|-|32bit
control open "hw:0" (Permission denied)
Cannot initialize driver
no message buffer overruns
JackServer::Open() failed with -1
Failed to start server

This does not happen, if I log onto my computer locally (the one which
is actually running jack) and then log on through ssh. In that case, I
can use the jack apps through ssh without problems. If then, I log off
again locally, I have the same problem, so it is reproducable.


What do I do to be able to log in through ssh?

Regards,

Gabriel