Since some time if I do some disk related action I get messages like :

$ df -k .
Filesystem  1K-blocks     Used    Avail Capacity  Mounted on
/dev/sd0a     2031153   157642  1771953     8%    /
ksh: j_waitj: tcsetpgrp(10, 2970) failed: Inappropriate ioctl for device
$

What does this mean ? That I have a problem with my disk ?

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