[linux-audio-user] Problem recording 24/7

[Eric Dantan Rzewnicki]

can you get a strace on any of the stuck processes?

-ERic Rz.

On Mon, May 17, 2004 at 08:37:07PM -0700, H. T. Hind wrote:
> Hi, 
> 
> I'm trying to record 24/7 using Fedora Core 1, JACK 0.98,
> ecasound 2.3.3 , python2.2.3, alsa-1.0.1 and
> 2.4.22-1.2140.nptl.caps.rhfc1.ccrma kernel and delta 1010.  I'm
> using the Planet CCRMA packages and kernel.  Cron kicks off a
> python script every hour, that starts ecasound and records 4 channels for 1
> hour . The script also invokes lame to compress the recorded
> files to mp3. 
> The Python script invokes jack_connect to connect the ecasound
> instance with JACK. After a couple of days of perfect recording,
> jack_connect just seems to hang while connecting and then all the
> subsequent instances of recording invoked from CRON pile and no
> more recording happens till JACK is restarted. 
> The JACK logs show the following entries - 
> 
> subgraph starting at ecarecord_26319 timed out (subgraph_wait_
> fd=13, status = 0, state = Triggered)
> at 357895053385 client waiting on 13 took 1009935 usecs, status = 1 sig = 357894043446 awa = 0 fin = 0 dur=0
> subgraph starting at ecarecord_26319 timed out (subgraph_wait_
> fd=13, status = 0, state = Triggered)
> at 357896063568 client waiting on 13 took 1009961 usecs, statu
> s = 1 sig = 357895053603 awa = 0 fin = 0 dur=0
> subgraph starting at ecarecord_26319 timed out (subgraph_wait_
> fd=13, status = 0, state = Triggered)
> 
> 
> The ecasound log for the  instance ecarecord_26319 shows - 
> 
> (ecasoundc_sa) Error='read() error', cmd='engine-halt'
> last_error='' cmd_cnt=2192 last_cnt=2191.
> (ecasoundc_sa) Error='sync error', cmd='cs-disconnect'
> last_error='' cmd_cnt=2193 last_cnt=2191.
> (ecasoundc_sa) Error='read() error', cmd='cs-disconnect'
> last_error='' cmd_cnt=2193 last_cnt=2191.
> 
> 
> I can't figure out what could be causing the jack_connect
> instance to stall , whether it is JACK , jack_connect or ecasound
> or python I can't figure out. Any pointers or suggestions on how
> to solve the problem ? 
> 
> hth 
> ---