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Home > Archive > Unix True 64 > November 2005 > [Tru64]: Random output of 'ps' command
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[Tru64]: Random output of 'ps' command
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| Vecchiato, Michele 2005-11-11, 2:54 am |
| Problem:
The command "ps -eo args" generate random output
(executed on OSF1 V5.1 732 alpha system):
....
/usr/sbin/binlogd
[syslogd] <---
/usr/sbin/mountd -i
....
or
....
/usr/sbin/binlogd
/usr/sbin/syslogd <---
/usr/sbin/mountd -i
....
Why this different output?
Excuse me for the bad english, but i'm italian 
Michele
--
Michele Vecchiato
|_|0|_| <callto://m.vecchiato>
|_|_|0| <http://skia.altervista.org>
|0|0|0| <mailto:michele.vecchiato@gmail.com>
--
Michele Vecchiato
|_|0|_| <callto://m.vecchiato>
|_|_|0| <http://skia.altervista.org>
|0|0|0| <mailto:michele.vecchiato@gmail.com>
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| nafc@snet.net 2005-11-11, 6:00 pm |
| Michele,
This is from the manpage for 'ps':
-f Attempts to generate a full listing. Under certain circumstances,
the
-f option does not return the full path and arguments of a
process.
Instead, it will return a bracketed process name such as
[process_name]. This behavior conforms with the XPG4 standard.
Although it's for the -f option it seems to apply here as well. In
other words, it's normal behavior.
nafc
Vecchiato, Michele wrote:
> Problem:
>
> The command "ps -eo args" generate random output
> (executed on OSF1 V5.1 732 alpha system):
>
> ...
> /usr/sbin/binlogd
> [syslogd] <---
> /usr/sbin/mountd -i
> ...
>
> or
>
> ...
> /usr/sbin/binlogd
> /usr/sbin/syslogd <---
> /usr/sbin/mountd -i
> ...
>
> Why this different output?
> Excuse me for the bad english, but i'm italian
>
> Michele
>
> --
> Michele Vecchiato
> |_|0|_| <callto://m.vecchiato>
> |_|_|0| <http://skia.altervista.org>
> |0|0|0| <mailto:michele.vecchiato@gmail.com>
> --
> Michele Vecchiato
> |_|0|_| <callto://m.vecchiato>
> |_|_|0| <http://skia.altervista.org>
> |0|0|0| <mailto:michele.vecchiato@gmail.com>
| |
| Bob Harris 2005-11-11, 8:49 pm |
| In article <437440a5$0$8488$5fc30a8@news.tiscali.it>,
"Vecchiato, Michele" <michele.vecchiato@gmail.com> wrote:
> Problem:
>
> The command "ps -eo args" generate random output
> (executed on OSF1 V5.1 732 alpha system):
>
> ...
> /usr/sbin/binlogd
> [syslogd] <---
> /usr/sbin/mountd -i
> ...
>
> or
>
> ...
> /usr/sbin/binlogd
> /usr/sbin/syslogd <---
> /usr/sbin/mountd -i
> ...
>
> Why this different output?
> Excuse me for the bad english, but i'm italian
>
> Michele
>
> --
> Michele Vecchiato
> |_|0|_| <callto://m.vecchiato>
> |_|_|0| <http://skia.altervista.org>
> |0|0|0| <mailto:michele.vecchiato@gmail.com>
I'm not totally sure, but I think this happens when the process is
swapped out, so that the only information still in memory is the
program name. To get the rest would require swapping in the
process, and that can be very annoying to have ps thrash the
system.
Bob Harris
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