Package: avahi-daemon Version: 0.8-5 Severity: normal Dear Maintainer,
After upgrading to Debian Bullseye, I noticed that the Avahi CPU usage on my server machine was quite high (eventually 100% of one core). After resetting Avahi, the CPU usage was normal then eventually increased over time again until it was again rather high. The increase appears to be (very roughly) 1 or 2% per hour on my rather humble Intel(R) Celeron(R) CPU 4205U @ 1.80GHz. Checking the journal, I only see the following sorts of lines: Aug 25 16:21:30 zeta avahi-daemon[313333]: avahi_normalize_name() failed. Aug 25 16:21:30 zeta avahi-daemon[313333]: avahi_key_new() failed. Aug 25 16:21:30 zeta avahi-daemon[313333]: avahi_normalize_name() failed. Aug 25 16:21:30 zeta avahi-daemon[313333]: avahi_key_new() failed. Aug 25 16:21:31 zeta avahi-daemon[313333]: avahi_normalize_name() failed. Aug 25 16:21:31 zeta avahi-daemon[313333]: avahi_key_new() failed. Which was around the time I turned on another machine on my network. However, the timing was not aligned with when Avahi CPU usage increased. There is a possibility it is aligned with when I turn on my printer, but I will need to investigate that further. I did not see anything else in the log of note. In the meantime, is there any means for me to gather additional information to help diagnose this problem? Thanks, Ryan -- System Information: Debian Release: 11.0 APT prefers stable-security APT policy: (500, 'stable-security'), (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 5.10.0-8-amd64 (SMP w/2 CPU threads) Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8), LANGUAGE=en_CA:en Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages avahi-daemon depends on: ii adduser 3.118 ii bind9-host [host] 1:9.16.15-1 ii dbus 1.12.20-2 ii init-system-helpers 1.60 ii libavahi-common3 0.8-5 ii libavahi-core7 0.8-5 ii libc6 2.31-13 ii libcap2 1:2.44-1 ii libdaemon0 0.14-7.1 ii libdbus-1-3 1.12.20-2 ii libexpat1 2.2.10-2 ii lsb-base 11.1.0 Versions of packages avahi-daemon recommends: ii libnss-mdns 0.14.1-2 Versions of packages avahi-daemon suggests: pn avahi-autoipd <none> -- no debconf information