The reason why sometimes (on some installations) no error is reported, is of course if the 'priority' given with -p is a current valid process ID. Which means that this process is changed by ionice instead of calling updatedb.
The reason why sometimes (on some installations) no error is reported, is of course if the 'priority' given with -p is a current valid process ID. Which means that this process is changed by ionice instead of calling updatedb.