Thanks. I tested this with `evdi` completely disabled as requested. I also received the newer `7.0.0-30-generic` kernel, so I tested on that version.
The Elgato Prompter was physically disconnected, the DisplayLink service was stopped, `evdi` was blacklisted as instructed, all initramfs images were rebuilt, and the system was rebooted. After reboot: ```text Kernel: 7.0.0-30-generic evdi is not loaded RCU stalls: 4 ``` The `rcu_tasks_wait_gp` warnings therefore still occur with `evdi` not loaded. For comparison, before blacklisting `evdi`, `7.0.0-30-generic` had already produced 3 stalls shortly after boot with `evdi` loaded. The known-good `6.17.0-40-generic` kernel continues to produce 0 occurrences under equivalent normal use. So the issue is also reproducible on `7.0.0-30-generic`, and disabling the out-of-tree `evdi` driver does not appear to eliminate it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2164624 Title: rcu_tasks_wait_gp stalls on 7.0.0-28/29-generic (HWE noble), absent on 6.17.0-40-generic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2164624/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
