Hello, I think I was also affected by this freezing MariaDB of version 10.11.6. For me it happened after a reboot, which caused a lot of IO (on slow disks), which seemingly triggered the hang bug when running out of IO slots, as mentioned in the official release notes [1]. I had to kill -9 it.
I see there was talk of going to 10.11.7 back in April? Current version info: mariadb --version mariadb Ver 15.1 Distrib 10.11.6-MariaDB, for debian-linux-gnu (x86_64) using EditLine wrapper Version from apt: 1:10.11.6-0+deb12u1 Debian 12.7 Linux 6.1.0-26-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.112-1 (2024-09-30) x86_64 GNU/Linux Regards, Wiebe [1] https://mariadb.com/kb/en/mariadb-10-11-6-release-notes/
