15 Sep
2012
15 Sep
'12
8:32 p.m.
On 09/15/2012 08:04 AM, peter(a)peterlutek.com wrote:
All errors seem to point to a problem with interrupts. Somehow the
kernel is not handling interrupts from the soundcard, or the soundcard
is not generating them. Jack's driver waits for them and they never
arrive and as a result eventually the watchdog kills the whole thing in
the case of jack1.
Anything in /var/log/messages?
maybe, if i knew what to look for! ;-)
comparing a 3.2.0 (jack fails) boot with a 3.1-6 (jack is ok) boot, i
noticed two things:
3.2.0: NMI watchdog is active (disabling it via kernel params didn't fix
jack)
BOTH show this:
Sep 15 10:52:17 palnote kernel: [ 0.810792] pci 0000:00:1c.3: PCI INT D
-> GSI 19 (level, low) -> IRQ 19
Sep 15 10:52:17 palnote kernel: [ 1.391566] firewire_ohci 0000:0d:00.3:
PCI INT D -> GSI 19 (level, low) -> IRQ 19
Sep 15 10:52:17 palnote kernel: [ 1.567717] ahci 0000:00:1f.2: PCI INT
B -> GSI 19 (level, low) -> IRQ 19
Sep 15 10:52:17 palnote kernel: [ 11.827204] snd_hdsp 0000:05:00.0: PCI
INT A -> GSI 19 (level, low) -> IRQ 19
so, perhaps the hdsp sharing IRQ 19 with ohci and ahci is not a good
thing?? but that's the same in BOTH boots, so i dunno....
anything else i should look for, or any other info you might be interested
in seeing?
big thanks for any help on this, fernando!!
cheers!
.pltk.
i've
just switched over to jack1... it fails as well, with a different
error message (don't know if this sheds any more light on the
situation!):
plutek@palnote:~$ jackd 0.122.0
Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben
Hohn
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 ..
apparent rate = 44100
creating alsa driver ...
hw:0,0|hw:0,0|256|2|44100|0|0|nomon|swmeter|-|32bit
control device hw:0
configuring for 44100Hz, period = 256 frames (5.8 ms), buffer = 2
periods
ALSA: final selected sample format for capture: 32bit integer
little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 32bit integer
little-endian
ALSA: use 2 periods for playback
ALSA: prepare error for playback on "hw:0,0" (Input/output error)
DRIVER NT: could not run driver cycle
**** alsa_pcm: xrun of at least 0.013 msecs
thanks again for any help on this!
ooops... getting rid of the extra -p flag, and going with -p1024, i get
this:
plutek@palnote:~$ jackd -dalsa -r44100 -p1024 -n2 -D -Chw:0,0 -Phw:0,0&
[1] 3580
plutek@palnote:~$ jackd 0.122.0
Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben Hohn
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 ..
apparent rate = 44100
creating alsa driver ...
hw:0,0|hw:0,0|1024|2|44100|0|0|nomon|swmeter|-|32bit
control device hw:0
configuring for 44100Hz, period = 1024 frames (23.2 ms), buffer = 2
periods
ALSA: final selected sample format for capture: 32bit integer
little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 32bit integer
little-endian
ALSA: use 2 periods for playback
jackd watchdog: timeout - killing jackd