[Bug 273669] x11/kde5: kde5 opens too many files and freezes the system (with disabled Baloo) - KDE is unusable when the home directory has a lot of files

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=273669

            Bug ID: 273669
           Summary: x11/kde5: kde5 opens too many files and freezes the
                    system (with disabled Baloo) - KDE is unusable when
                    the home directory has a lot of files
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: kde at FreeBSD.org
          Reporter: yuri at freebsd.org
          Assignee: kde at FreeBSD.org
             Flags: maintainer-feedback?(kde at FreeBSD.org)

KDE5 works fine when the home directory doesn't have too many files.

Baloo causes this type of problem, but 'balooctl status' says that baloo is
disabled, so something else opens too many files.

But on my system the home directory has a lot of files and KDE runs out of file
descriptors.

kern.maxfiles can be increased, of course, but it is obviously a bad idea to
open every available file, and this definitely would cause performance issues
when kern.maxfiles would be sufficiently large.

The dmesg log looks like this:
kern.maxfiles limit exceeded by uid 1001, (dolphin) please see tuning(7).
kern.maxfiles limit exceeded by uid 1001, (plasmashell) please see tuning(7).
kern.maxfiles limit exceeded by uid 1015, (date) please see tuning(7).
kern.maxfiles limit exceeded by uid 1001, (DiscoverNotifier) please see
tuning(7).
kern.maxfiles limit exceeded by uid 1015, (date) please see tuning(7).
kern.maxfiles limit exceeded by uid 1001, (kgpg) please see tuning(7).
kern.maxfiles limit exceeded by uid 1001, (DiscoverNotifier) please see
tuning(7).
kern.maxfiles limit exceeded by uid 1001, (chrome) please see tuning(7).
kern.maxfiles limit exceeded by uid 1001, (chrome) please see tuning(7).
kern.maxfiles limit exceeded by uid 1001, (chrome) please see tuning(7).
kern.maxfiles limit exceeded by uid 1001, (plasmashell) please see tuning(7).
kern.maxfiles limit exceeded by uid 1001, (DiscoverNotifier) please see
tuning(7).
kern.maxfiles limit exceeded by uid 1001, (kwin_killer_helper) please see
tuning(7).
pid 94202 (kwin_killer_helper), jid 0, uid 1001: exited on signal 5
kern.maxfiles limit exceeded by uid 1001, (kwin_killer_helper) please see
tuning(7).
pid 94204 (kwin_killer_helper), jid 0, uid 1001: exited on signal 5
kern.maxfiles limit exceeded by uid 1001, (DiscoverNotifier) please see
tuning(7).
kern.maxfiles limit exceeded by uid 1015, (date) please see tuning(7).
kern.maxfiles limit exceeded by uid 1001, (qtox) please see tuning(7).
kern.maxfiles limit exceeded by uid 1015, (date) please see tuning(7).
kern.maxfiles limit exceeded by uid 1001, (kgpg) please see tuning(7).
kern.maxfiles limit exceeded by uid 1015, (date) please see tuning(7).
kern.maxfiles limit exceeded by uid 1001, (plasmashell) please see tuning(7).
kern.maxfiles limit exceeded by uid 1015, (sh) please see tuning(7).
kern.maxfiles limit exceeded by uid 1015, (sleep) please see tuning(7).
kern.maxfiles limit exceeded by uid 1015, (sleep) please see tuning(7).
kern.maxfiles limit exceeded by uid 1015, (sleep) please see tuning(7).
pid 93733 (firefox), jid 0, uid 1001: exited on signal 11
kern.maxfiles limit exceeded by uid 1001, (firefox) please see tuning(7).
pid 8573 (firefox), jid 0, uid 1001: exited on signal 11
kern.maxfiles limit exceeded by uid 1001, (firefox) please see tuning(7).
pid 8611 (firefox), jid 0, uid 1001: exited on signal 11
pid 8604 (firefox), jid 0, uid 1001: exited on signal 11

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