On Tue, Dec 21, 2021 at 10:40:50AM +0100, Peter Zijlstra wrote: > On Fri, Dec 17, 2021 at 02:55:07PM +0100, Peter Zijlstra wrote: > > On Fri, Dec 17, 2021 at 01:01:43PM +0200, Mathias Nyman wrote: > > > I can reproduce this. > > > Looks like problems started when driver converted to readl_poll_timeout_atomic() in: > > > > > > 796eed4b2342 usb: early: convert to readl_poll_timeout_atomic() > > > > I can confirm, reverting that solves the boot hang, things aren't quite > > working for me though. > > I've been poking at this a little, find debug patch and full dmesg > below. The TL;DR version of the dmesg seems to be: > > [ 4.984148] xhci_dbc:xdbc_start: waiting for connection timed out > [ 4.984149] xhci_dbc:early_xdbc_setup_hardware: failed to setup the connection to host > > Initially I thought this was due to delay not being set up properly, but > I 'fixed' that, and I've ran out of ideas. I really don't know anything > about USB :/ Any thoughts on this? I'd really like to be able to use this machine but can't due to lack of console.