On Wed, Jun 24, 2020 at 05:05:49AM +0000, bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=208307 > > Bug ID: 208307 > Summary: Alcor Micro Corp. Multi Flash Reader [058f:6366] keeps > being detected and removed continuously > Product: Drivers > Version: 2.5 > Kernel Version: 5.8-rc2 > We have a laptop equipped with AMD Ryzen 5 4500U with Radeon Graphics. The > Alcor Micro Corp. Multi Flash Reader keeps being detected and removed > continuously. Then, once the storage modules try to access it, there will be > the failure. These messages keep showing up like floods in the kernel message > log. Try disabling Link Power Management for this device: echo 058f:6366:k >/sys/module/usbcore/parameters/quirks Alan Stern