Some processes stay active after killing its PID

[Roland Smith]

On Mon, Nov 26, 2007 at 04:30:01PM +0100, Honza Holakovsky wrote:
> Hi,
> 
> I'm expecting quite curious problem (currently spotted with usage of
> audacious (1.3.2 [20070405-4320]) and fusefs-wdfs (1.3.2))
> After I finish working with either of these two programs (i.e. closing
> audacious windown or unmounting wdfs unit), they still run on background,
> and cosume all remaining cpu performance. Even if I kill its PID, it's still
> running. "top" looks like this:

How did you kill them? Did you use 'kill -9'?

> last pid: 21161;  load averages:  1.30,  1.33,  1.11
> up 0+02:49:43  16:20:56
> 51 processes:  3 running, 48 sleeping
> CPU states: 53.1% user,  0.0% nice, 46.5% system,  0.4% interrupt,  0.0%idle
> Mem: 209M Active, 226M Inact, 105M Wired, 21M Cache, 70M Buf, 54M Free
> Swap: 2048M Total, 20K Used, 2048M Free
> 
>   PID USERNAME    THR PRI NICE   SIZE    RES STATE    TIME   WCPU COMMAND
> 19163 root          1 132    0 19112K  4948K RUN     14:57 81.88% wdfs
> 18873 holakac       1  96    0 79652K 53568K select  13:14  1.66% Xorg
> 18911 holakac       4  20    0   104M 81280K kserel   9:06  0.00%firefox-bin

Under some circumstances, a process cannot be killed, e.g. if 'px -xacu'
has the process in D state. See ps(1).

Roland
-- 
R.F.Smith                                   http://www.xs4all.nl/~rsmith/
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