Can't kill a umount

[Robert Moskowitz]

On 09/06/2015 09:57 AM, François Patte wrote:
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> Le 06/09/2015 15:55, Robert Moskowitz a écrit :
>> I was copying some files to a newly set up USB HD, and then did
>> some umounts when done.  Well they are still running, and
>>
>> kill pid
>>
>> is not killing them and they are taking up most of my cpu.
>>
>> I have never seen 'kill' fail.
>>
>> What can I do other than reboot?
> kill -9

Do you mean:

kill -9 2200

where 2200 is the pid number I want dead?