jackd 0.116.1 with ffado 1.999.43 on Ubuntu Karmic:
libffado1 2.0~rc2+svn1569-2ubuntu1 jackd 0.116.1-4ubuntu2
Sound card: Edirol FA-66
FireWire? card: Texas Instruments TSB82AA2 IEEE-1394b Link Layer Controller (rev 01)
I start jackd with:
jackd -R -d firewire -r 44100 -n 4 -p 2048 -v3
I get lots of "Execute: negative step" errors, so this might be related to #270. I'm attaching the log stripped for these errors.
I get XRUNs with this setup even though jackd has realtime privileges in limits.conf. The XRUNs seem to occur when CPU and/or I/O usage is high, but I'm unable to reproduce it with the 'stress' tool.
Running 'stress --cpu 8 --io 4' does not provoke any XRUNs.
It might be related to conflicting IRQs, so I'm attaching /proc/interrupts as well. Let me know if you think this might be the issue.
How do I approach this problem? I'm stuck at this point...