[Jack-Devel] alsa_* device or resource is busy

hi all, continuing from a previous email where I try to start up several audio applications from a custom init script , which is run from rc.local, I noticed that I get several Capture open error: Device or resource busy error messages for the alsa_(in|out) instances I set up: alsa_out -d hw:DSP24,0 -c 10 -j dsp_out -r 48000 -p128 -n2 & alsa_in -d hw:DSP24,0 -c 12 -j dsp_in -r 48000 -p128 -n2 & alsa_out -d hw:Intel -c 8 -j hda_out -r 48000 -p128 -n3 & alsa_in -d hw:Intel -c 2 -j hda_in -r 48000 -p128 -n3 & These work when I use the script manually by logging in the pc. but from rc.local the seems to be a problem with alsa. on some reboots, perhaps one (random) of these will work , but usually non of the 4 will be loaded correctly. what could be conflicting here?