Subject: [linux-audio-user] Re: [PD] pd -jack alsa - pd crash needs reboot
From: Frank Barknecht (fbar_AT_footils.org)
Date: Thu Feb 12 2004 - 20:03:20 EET
Hallo,
rob canning hat gesagt: // rob canning wrote:
> i am running pd 0.37.0 as root with the latest kernel from
> planetccrma with -jack using Qjackctl as user - i am using alsa
> 1.0.1 with a hdsp card on RH.9 P4 2.6 with 2gigs of dual channel
> ram
>
> jackstart -R -d alsa -d hw:0 -r 44100 -p 1024 & (or somthing like that)
If you run as root (generally *not* a good idea) then you don't need
to use jackstart!
> pd -rt -jack
>
> whenever i use the plugin~ 0.2 (LADSPA) external, the smallest thing
> (select all- drag)
This is not that small a thing to do for Pd.
> causes pd to crash and the only way it will
> restart is by doing a reboot.
>
> i just tried without plugin~ and get the same thing though plugin~
> does seem to like to crash my system quite easily..
>
> here is the last jack error:
>
> subgraph starting at pure_data_0 timed out (subgraph_wait_fd=24, status = 0, state = Running)
> client pure_data_0 error: awake_at = 663526372 state = 2 timed_out = 2
> **** alsa_pcm: xrun of at least 11.868 msecs
> 13:32:56.712 Audio connection graph change.
> 13:32:56.712 XRUN callback. (4)
> 13:32:56.837 Audio active patchbay scan...
>
> i can't restart pd with either -jack (with the jack server running)
> or -alsa (with the jack server off) unless i reboot
Is there still a pd running somewhere? Check with "ps aux".
> sometimes i get the audio in/out stuck - closing error sometimes but
> mostly the watchdog: signaling pd error just keeps appearing
Do you run the latest test version from Miller's site? I would
recommend doing this. Also in s_inter.c try to change this line in
sys_set_priority:
p3 = (higher ? p2 - 1 : p2 - 3);
to be that:
// p3 = (higher ? p2 - 1 : p2 - 3);
p3 = (higher ? p1 + 3 : p1 + 1);
instead, and in s_audio_jack.c find (around line 60) this:
} else { /* PD could not keep up ! */
if (jack_started) sys_log_error(ERR_RESYNC);
and throw out the sys_log_error like:
} else { /* PD could not keep up ! */
// don't call log_error in jack process:
// if (jack_started) sys_log_error(ERR_RESYNC);
then recompile. This once did wonders here for letting Pd
coexist with Jack.
ciao
-- Frank Barknecht _ ______footils.org__
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