[dolphin] [Bug 502357] dolphin window crashed - "too many open files"

https://bugs.kde.org/show_bug.cgi?id=502357

--- Comment #10 from Mariusz Libera <[email protected]> ---
Created attachment 181395
  --> https://bugs.kde.org/attachment.cgi?id=181395&action=edit
screenshot

I had dolphin open for a while doing some file moving, and it started
malfunctioning: it would no longer allow me to view a directory content, asking
for admin authorization. I checked the logs and sure enough it's this bug
again:

May 16 20:02:53 legion dolphin[867680]: QProcess: Cannot create pipe (Too many
open files)
May 16 20:02:59 legion dolphin[867680]: org.kde.dolphin: Could not open temp
file
May 16 20:02:59 legion dolphin[867680]: org.kde.dolphin: Could not open temp
file
May 16 20:02:59 legion dolphin[867680]: org.kde.dolphin: Could not load default
global viewproperties
May 16 20:02:59 legion dolphin[867680]: org.kde.dolphin: Could not open temp
file
May 16 20:02:59 legion dolphin[867680]: kf.config.core: Created a KConfigGroup
on an inaccessible config location "/mnt/lindata/music/.directory" "Desktop
Entry"
May 16 20:02:59 legion dolphin[867680]: kf.config.core: Created a KConfigGroup
on an inaccessible config location "/mnt/lindata/music/.directory" "Desktop
Entry"
May 16 20:02:59 legion dolphin[867680]: kf.config.core: Created a KConfigGroup
on an inaccessible config location "/mnt/lindata/music/.directory" "Desktop
Entry"
May 16 20:02:59 legion dolphin[867680]: kf.config.core: Created a KConfigGroup
on an inaccessible config location "/mnt/lindata/music/.directory" "Desktop
Entry"
May 16 20:02:59 legion dolphin[867680]: kf.config.core: Created a KConfigGroup
on an inaccessible config location "/mnt/lindata/music/.directory" "Desktop
Entry"
May 16 20:02:59 legion dolphin[867680]: QProcess: Cannot create pipe (Too many
open files)

but dolphin did not crash yet. It did after I tied to open yet another
directory in a different tab. Maybe it's something about Back/Forward buttons,
maybe some resources are not released?

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