cups-browsed: High CPU Usage on Fresh Install

[Lenger34]

After a fresh installation and update of the kernel and packages, the cups-browsed process consumes a high amount of CPU resources, even though I haven't used the printer and only have a network printer connected. Restarting the cups-browsed service resolved the issue. I have attached the logs, system information, and a dump of the process. core.1470.zip

cups_access_log.txt cups_error_log.txt system_info.txt

[MenthaSuaveolens]

After installing Linux Mint 22 Cinnamon. I wanted to connect to a hp-printer with Wifi-access. The standard app to set up a wireless printer showed the printer at once. I selected the proper printer but it looked as the app wasn't responsive at all. On the hand a message popped up that the printer was being installed. After a while the app behaved normal and showed the installed printer. The printer was ready to use. I will try this again soon.

[MenthaSuaveolens]

Reinstalled Linux Mint 22 Cinnamon. Wireless printer/scanner was detected automatically before I could select the app (fine!). I noticed that there are a lot of warnings with "[cups-driverd] Bad driver information file ..." (See error_log.txt). In demsg the following event was recorded : error_log.txt [ 311.469000] show_signal_msg: 108 callbacks suppressed [ 311.469004] w[4198]: segfault at 4c ip 000062f696a74e73 sp 00007ffe4c65d060 error 4 in w[62f696a74000+3000] likely on CPU 3 (core 3, socket 0)

[Harry-W-Haines-III]

I just noticed this earlier this morning:

audit: type=1400 audit(1721188814.230:130): apparmor="DENIED" operation="capable" class="cap" profile="/usr/sbin/cupsd" pid=91899 comm="cupsd" capability=12 capname="net_admin"

cupsd is essential to Linux. Why it was denied I have no idea.

[clefebvre]

Update ubuntu-system-adjustment and reboot, it re-enables user namespaces.