maintainer-feedback requested: [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]

Bugzilla Automation <bugzilla at FreeBSD.org> has asked freebsd-kde (Nobody)
<kde at FreeBSD.org> for maintainer-feedback:
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
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=273669



--- Description ---
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