In addition to the syslog exhaustion mentioned in the description, this bug causes severe functional degradation: massive packet drops (block noise) in the TS stream. Because the WARN trace is repeatedly emitted in the interrupt context (URB completion handler), it stalls the USB reception, leading to corrupted video data.
Personally, this single regression forces me to remain on Ubuntu 22.04, rendering Ubuntu 24.04 (Kernel 6.8+) utterly unusable for my setup. For other users currently affected by this, a community member has published a DKMS-based workaround script (generated with the help of Claude AI). It dynamically patches `sysfs_emit_at` back to a safe implementation for just the `smsdvb` module, avoiding a full kernel rebuild: https://qiita.com/mikanpro/items/4a9bad7af034244c886f Note: I have not personally tested this workaround script myself (as I am sticking with 22.04), and since it is an AI-generated script, please review the code before executing it in your environment. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2162139 Title: smsdvb generates an unbounded invalid sysfs_emit_at WARN storm with PX-S1UD (regression in Linux 6.6) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2162139/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
