On Fri, May 11, 2018 at 07:15:08PM -0400, Jacob Saunders wrote: > On Linux kernel 4.16.8 (using Arch Linux) if I eject a USB 3.0 device from > my system (unplug or "udisksctl power-off --block-device /dev/sde), it > freezes instantly with a null pointer error in XHCI. I've been unable to > successfully capture a kernel log of the error (and my cameras did not > return usable results) and the screen begins scrolling near-immediately with > hung processors in a VT. I have done a git bisection (between 4.16.7 and > 4.16.7) narrowing it down to the following commit: As discussed on the linux-usb mailing list, there's a fix for this coming. thanks, greg k-h