[Apr  2 11:33:59] WARNING[4243]: chan_zap.c:904 zt_open: Unable to specify channel 1: Device or resource busy
[Apr  2 11:33:59] ERROR[4243]: chan_zap.c:7186 mkintf: Unable to open channel 1: Device or resource busy
here = 0, tmp->channel = 1, channel = 1
[Apr  2 11:33:59] ERROR[4243]: chan_zap.c:10527 build_channels: Unable to register channel '1'