** Tags added: regression-potential ** Description changed:
Hello. Running Ubuntu 18.04 (4.15.0-22-generic), after plugging my TP-LINK TL- - WN722N into the USB port, the CPU usage goes to 100%, and there are - multiple reports of "stack traces" in dmesg. + WN722N Version 1.10 into a USB 1.0 or 1.1 port on my one computer, the + CPU usage goes to 100%, and there are multiple reports of "stack traces" + in dmesg. The attached snippet repeats multiple consecutive times in the dmesg output (albeit with a different trace id). + + WORKAROUND: Plug the device into a USB 2.0 port. ** Summary changed: - [TP-LINK TL-WN722N v1] Plugging USB device in causes stack traces + 100% CPU + [TP-LINK TL-WN722N v1] After plugging device into a USB 1.0/1.1 port stack traces occur + 100% CPU -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1775230 Title: [TP-LINK TL-WN722N v1] After plugging device into a USB 1.0/1.1 port stack traces occur + 100% CPU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1775230/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
