(In reply to Takashi Iwai from comment #3) > Is it with x86, or other platform? x86, AMD Family 17h - AMD Renoir USB 3.1 (AMD Ryzen 4750G) > I'm asking it because the only generic xhci change between rc6 and rc7 is > d4a610635400ccc382792f6be69427078541c678 > xhci: fix bounce buffer usage for non-sg list case > where is very likely irrelevant, and the rest are platform-specific, either > for Mediatek, Armada 3720, Renesas, USB gadget and serial quirks, so these > look irrelevant, either. So, none of the changes in drivers/usb/* look > suspicious, through a quick glance. Right. so why does it do a "reset" continuously? some time ago (not sure which kernel, some 5.10 or older) it was doing the reset once on boot and then was ignoring that port. If I understand it correctly, the usb device it complains about is: http://80.87.195.87/index.php?id=usb:0451-82ee which has no drivers, so it shouldn't do anything, at least not repeatedly? is there any way to figure out why it keeps trying? Maybe I can make it stop doing that somehow.