please help) i'm getting this message when trying to start simplewallet (v0.9.11.0) as a daemon on unix

2017-Apr-18 00:53:16.671640 Failed to read line.
2017-Apr-18 00:53:16.671652 Read command:
2017-Apr-18 00:53:16.671682 Failed to read line.
2017-Apr-18 00:53:16.671692 Read command:
2017-Apr-18 00:53:16.671706 Failed to read line.
2017-Apr-18 00:53:16.671714 Read command:

i'm using only 2 arguments --wallet-file= and --password=
i see in log file that wallet is opened ok and after this neverending message, for aeond helps --no-console, but for simplewallet no such command