http://bugzilla.opensuse.org/show_bug.cgi?id=1166221 Bug ID: 1166221 Summary: How to stop console spam due to a (likely) kernel bug? Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: x86-64 OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-maintainers@forge.provo.novell.com Reporter: gyan@gyani.pro QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- I updated Tumbleweed last week using `zypper dist-upgrade`. It was running fine prior to the update. After the update, the kernel started spamming the terminal every 4 seconds. This makes the terminal close to unusable, as any user input or console output gets bisected and split over many lines. Here's a `dmesg | grep | tail` snippet: ---- [ 350.602656] usb usb2-port2: Cannot enable. Maybe the USB cable is bad? [ 354.682627] usb usb2-port2: Cannot enable. Maybe the USB cable is bad? [ 358.758627] usb usb2-port2: Cannot enable. Maybe the USB cable is bad? ---- Only two devices are connected via USB - keyboard and mouse - and both work fine. The usb address can change - it's sometimes usb4-port2 or usb3-port2 in addition to usb2-port2 During the update, the kernel changed from 4.20 to 5.5. When booting with the 4.20 kernel via grub advanced options, these messages don't appear. A Windows 7 installation also doesn't show any issues with any USB devices or hubs. Searching leads me to believe that is due to this kernel commit: usb: handle warm-reset port requests on hub resume. (link: https://patchwork.kernel.org/patch/10792673/) Ubuntu resolved the same issue by reverting this commit. (link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1856608) lsusb -t output: ---- /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M |__ Port 3: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M |__ Port 5: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 12M |__ Port 5: Dev 4, If 1, Class=Human Interface Device, Driver=usbhid, 12M /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M ---- How do I stop these messages? Ideal solution would be quick, non-intrusive and easily reverted. Thanks. -- You are receiving this mail because: You are on the CC list for the bug.