[Apr  2 14:13:34] WARNING[4401]: chan_zap.c:904 zt_open: Unable to specify channel 1: Device or resource busy
[Apr  2 14:13:34] ERROR[4401]: chan_zap.c:7186 mkintf: Unable to open channel 1: Device or resource busy
here = 0, tmp->channel = 1, channel = 1
[Apr  2 14:13:34] ERROR[4401]: chan_zap.c:10527 build_channels: Unable to register channel '1'
[Apr  2 14:13:34] WARNING[4401]: chan_zap.c:9824 zap_restart: Reload channels from zap config failed!