Pulseaudio works, but kernel log says "device or resource busy" over and over

Well,
I recently noticed, that Manjaro developed the attitude to hard freeze all over sudden. Only a hard power off helps, it does not even react to any kind of commands (or the power button pressed, normally inducing poweroff). I could not pinpoint this behaviour to any app or user behaviour, so I checked the kernel log, and:

Jan 21 17:21:22 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:22 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:23 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:23 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:24 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:24 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:35 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:35 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:35 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:35 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:36 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:36 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:37 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:37 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:39 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:39 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:39 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:39 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:40 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:40 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:41 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:41 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:42 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:42 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:43 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:43 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:52 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:52 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:54 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:54 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:57 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:57 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:57 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:21:57 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:01 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:01 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:03 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:03 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:15 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:15 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:15 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:15 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:19 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:19 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:19 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:19 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:42 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:42 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:43 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:43 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:46 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:46 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:46 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:46 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:50 BLASI kwin_x11[957]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 3717, resource id: 67>
Jan 21 17:22:50 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:22:50 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:23:19 BLASI rtkit-daemon[1113]: Supervising 10 threads of 5 processes of 1 users.
Jan 21 17:23:19 BLASI rtkit-daemon[1113]: Supervising 10 threads of 5 processes of 1 users.
Jan 21 17:23:19 BLASI rtkit-daemon[1113]: Supervising 10 threads of 5 processes of 1 users.
Jan 21 17:23:19 BLASI rtkit-daemon[1113]: Supervising 10 threads of 5 processes of 1 users.
Jan 21 17:23:19 BLASI rtkit-daemon[1113]: Successfully made thread 8301 of process 7804 owned by ‘1000’ RT at priority 10.
Jan 21 17:23:19 BLASI rtkit-daemon[1113]: Supervising 11 threads of 6 processes of 1 users.
Jan 21 17:23:19 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:23:19 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:23:19 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:23:19 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:23:19 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:23:19 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:23:33 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:23:35 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:23:35 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:23:35 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:23:35 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:23:35 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:23:35 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:23:56 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:24:27 BLASI kwin_x11[957]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 32757, resource id: 7>
Jan 21 17:24:28 BLASI kwin_x11[957]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 32964, resource id: 6>
Jan 21 17:24:28 BLASI kwin_x11[957]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 33001, resource id: 7>
Jan 21 17:24:28 BLASI kwin_x11[957]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 33246, resource id: 3>
Jan 21 17:24:30 BLASI kwin_x11[957]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 34733, resource id: 4>
Jan 21 17:24:30 BLASI systemd[870]: Started Media Player Classic Qute Theater - Multimedia Player.
Jan 21 17:24:30 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:24:31 BLASI systemd[870]: app-firefox-1026de1179544cacaedb116283944515.scope: Succeeded.
Jan 21 17:24:39 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM
Jan 21 17:24:40 BLASI pulseaudio[1085]: snd_pcm_writei: Device or resource busy, trying to restart PCM

System is
Manjaro KDE latest
AMD Ryzen 5 3600
Creative Soundblaster Audigy RX [CA0108/CA10300]

Help? :pleading_face: