I did cat /dev/zero >/dev/fd0 no space left on device (that's correct) ps ax | grep cat kill pid - nothing kill -9 pid - nothing then I repeatedly did the kill -9 , when after about half a minute it started working What's wrong? Why was the process unkillable? -- Karel Kulhavy http://atrey.karlin.mff.cuni.cz/~clock - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/