http://bugzilla.opensuse.org/show_bug.cgi?id=1022744 Bug ID: 1022744 Summary: Infinite loop during boot because of USB device in kernel 4.9.6 Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: x86-64 OS: Other Status: NEW Severity: Critical Priority: P5 - None Component: Kernel Assignee: kernel-maintainers@forge.provo.novell.com Reporter: martin.jakl@qbicon.cz QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.76 Safari/537.36 Build Identifier: I have motherboard with some problematic USB device, I don't know what it is, probably something internal, but windows also show one not working device. Until kernel 4.9.4 at the beginning of boot there was some message about not working USB device, but it booted and everything worked. In kernel 4.9.5 something changed and there was a loop of messages usb usb1-port2: unable to enumerate USB device usb usb2-port1: Cannot enable. Maybe the USB cable is bad? at first for 3 minutes connected with systemd-udev-settle messages and then another another 3 minutes with lvm2, after that it started, but dmesg was flooded with these messages. I masked systemd-udev-settle and turned off lvm2 and added cron job at @reboot to do: echo '0000:00:14.0' > /sys/bus/pci/drivers/xhci_hcd/unbind echo '0000:00:14.0' > /sys/bus/pci/drivers/xhci_hcd/bind after these changes I was able to boot in reasonable time and everything worked. But 4.9.6 changed something again and during boot, there is only infinite cycle of: usb usb1-port2: unable to enumerate USB device usb usb2-port1: Cannot enable. Maybe the USB cable is bad? I've waited for 15 minutes, but nothing changed. I've also tried 4.10.rc5 and it behaved the same as 4.9.6. Reproducible: Always Actual Results: Unable to boot with kernel 4.9.6. Expected Results: To be able to boot. -- You are receiving this mail because: You are on the CC list for the bug.