I decided to try removing ltsp, ltsp-binaries and dsnmasq, just to see what would happen after.
During the attempt, I got a timeout during update-initramfs. Timeouts like this during apt are common. I ran "update-initramfs -u" after the timeout, and that time it seemed to proceed normally. I'll go reboot the machine when I can and report back. Aside: This machine also serves a website, and that remains fast even when the rest of the machine is slow. After ssh to another internal machine, all is fast again. So it's not a plain network thing. The timeout: root@frost:~# apt remove dnsmasq ltsp ltsp-binaries Reading package lists... Done Building dependency tree Reading state information... Done The following package was automatically installed and is no longer required: sshfs Use 'apt autoremove' to remove it. The following packages will be REMOVED: dnsmasq ltsp ltsp-binaries 0 upgraded, 0 newly installed, 3 to remove and 0 not upgraded. After this operation, 1,669 kB disk space will be freed. Do you want to continue? [Y/n] (Reading database ... 296064 files and directories currently installed.) Removing dnsmasq (2.80-1.1ubuntu1) ... Removing ltsp (20.06-1~ubuntu20.04.1) ... Removing ltsp-binaries (20.04-1~ubuntu20.04.1) ... Processing triggers for man-db (2.9.1-1) ... Processing triggers for initramfs-tools (0.136ubuntu6.2) ... update-initramfs: Generating /boot/initrd.img-5.4.0-40-generic Error: Timeout was reached -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1886022 Title: multiple processes intermittently stall at same point in strace To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1886022/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
