On Tuesday, April 26, 2016 04:09:28 PM Luigi Toscano wrote:
> On Tuesday 26 of April 2016 16:05:59 Reindl Harald wrote:
> > dnf install fatrace
> > "fatrace" as root
> >
> > why *all the time*
> >
> > konsole(25441): RCO /etc/passwd
>
> Rough guess: from the current Konsole profile, "Tabs", "Tab Titles", what is
> the format?
Doesn't appear to be. I did some testing of my own and changed my shell to
'/bin/sh' as well as unsetting all of the tab variables (so that it just shows
"Shell")
None of that had any effect on the amount or polling resolution of
/etc/passwd. In fact, I could correlate no profile settings to why it's
polling /etc/passwd so frequently.
I can confirm that this is a call to NSS though, because if you change
'passwd: files sss' to 'passwd: sss' it ceases that behavior. (though don't do
that unless you have a root tty already open and ready to edit it back again)
These are the files it's opening every second:
open("/etc/passwd", O_RDONLY|O_CLOEXEC) = 14
open("/etc/passwd", O_RDONLY|O_CLOEXEC) = 14
open("/proc/26191/stat", O_RDONLY|O_CLOEXEC) = 14
open("/proc/26191/cmdline", O_RDONLY|O_CLOEXEC) = 12
open("/proc/26191/status", O_RDONLY|O_CLOEXEC) = 12
26191 was the child bash shell
---------
Others have noticed the "problem" as well:
KDE Bug: https://bugs.kde.org/show_bug.cgi?id=325442
unix.SE Post: https://unix.stackexchange.com/questions/125500/why-is-konsole-reading-etc-passwd
The consensus is that it's benign, which is like a given.
What isn't properly addressed is why it needs second resolution when it's just
sitting there idling.
What's likely necessary is a look at the source to determine what is polling
/proc/$CHILD_PID/{stat,cmdline,status} and you'll probably find the answer
there.
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