On Sunday May 13 2018 06:07:16 Duncan wrote: Hi, >There's the notion of a "system console" that gets various higher >priority kernel log messages, and a similar "console log" setting for >most syslog daemons including systemd's journald. These are normally >routed to a text terminal, termed the "system conosle", but they can be Yes, I remember there used to be (= I used to use) such a thing, but IIRC that went through /dev/console. On the current system, that device is +rw for root only, and output sent there doesn't show up on the "infected" pseudo-terminal. >never been enough to actually go researching further myself (I just >grumble and hit refresh if need be), so if you happen to find a helpful >article on the topic, please post a link. That might be the perfect >"round tuit" that I never seem to get, otherwise. =:^) I just realised that this will help: %> sudo ll /proc/*/fd/* | fgrep /pts/2 That showed kdeinit5 (and its klauncher child) as the source of the KF5-related message: 3697254 lrwx------ 1 bertin bertin 64 May 7 16:09 /proc/28256/fd/1 -> /dev/pts/2 3697255 lrwx------ 1 bertin bertin 64 May 7 16:09 /proc/28256/fd/2 -> /dev/pts/2 3697277 lrwx------ 1 bertin bertin 64 May 7 16:09 /proc/28257/fd/1 -> /dev/pts/2 3697278 lrwx------ 1 bertin bertin 64 May 7 16:09 /proc/28257/fd/2 -> /dev/pts/2 I cannot remember restarting kdeinit5 by hand from that termial. Is it possible that these /dev/pts devices get reused, i.e. that a Konsole tab finds itself using a pseudo-terminal devicec that's already being used as stdout/stderr by another process? Cheers, R.