MPD occationally stutters

[hugener]

Hi everyone,

Hope someone can help with this issue.
Previously, I was using an arch RPI2 build from around summer 2018. I can't be exactly sure, which and the SD card died.

Setting up my pi again, I get this occational and short hickup/stutter when playing music with MPD.
I have noticed that kauditd and systemd-journal sneaks into "top" every time it happens.

I also tried to rule out HW by testing the following:
Amp/speaker - PI => NOK
Other speaker - PI => NOK
Amp/speaker - Phone => OK

So it seems to be an issue with the PI, leaving me suspicious of kauditd.

Can anyone explain to me what it is? Whether it's critical? and perhaps how to disable it if not?

top - 22:25:14 up 26 min, 1 user, load average: 0.24, 0.18, 0.17
Tasks: 124 total, 1 running, 122 sleeping, 0 stopped, 1 zombie
%Cpu(s): 3.2 us, 2.5 sy, 0.0 ni, 93.4 id, 0.0 wa, 0.0 hi, 0.9 si, 0.0 st
MiB Mem : 933.7 total, 679.8 free, 87.2 used, 166.7 buff/cache
MiB Swap: 0.0 total, 0.0 free, 0.0 used. 830.4 avail Mem

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
201 root 20 0 367452 49492 34244 S 16.8 5.2 4:10.16 dotnet
37 root 20 0 0 0 0 S 4.3 0.0 0:03.73 kauditd
278 mpd 20 0 193640 31764 23208 S 4.0 3.3 1:04.10 mpd
1 root 20 0 33212 7920 6388 S 1.0 0.8 0:07.88 systemd
355 pi 20 0 10360 3100 2496 R 1.0 0.3 0:16.26 top
205 root 20 0 46440 13696 12924 S 0.7 1.4 0:02.05 systemd-journal

[chowbok]

kauditd is triggered by the audit daemon, which is invoked by default by systemd. auditing is a good thing to have if you're extra-concerned about security, because it'll warn you if something suspicious is going on, but it's probably safe to disable for a less-important machine. Append "audit=0" to your kernel boot command line and see if those hiccups stop.