> From: Dave Voutila <d...@sisu.io>
> Date: Thu, 10 Oct 2024 13:31:58 -0400
> 
> wizardo <wizar...@proton.me> writes:
> 
> >>Synopsis:   USB ports do not work on a Thinkpad T420 after upgrading to 
> >>OpenBSD 7.6-current (amd64)
> >>Category:   amd64
> >>Environment:
> >     System      : OpenBSD 7.6
> >     Details     : OpenBSD 7.6-current (GENERIC.MP) #362: Wed Oct  9 
> > 23:36:46 MDT 2024
> >                      
> > dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
> >
> >     Architecture: OpenBSD.amd64
> >     Machine     : amd64
> >>Description:
> >     USB ports stopped working after upgrading the system with sysupgrade -s
> >     on -current. The system was already on OpenBSD 7.6-current. Everything
> >     else, like touchpad, keyboard, lights, audio, screen, suspend and
> >     hibernate work as intended. The laptop was on a docking station at the
> >     time of the upgrade with usb ports connected to said station. I noticed
> >     the ehci errors in dmesg but i cannot find what the code 13 means. 
> >
> >         I tried rebooting with the laptop disconnected from the station
> >         but the issue remains.
> >         The T420 model is the one with USB 2.0 ports only.
> 
> kettenis: is this related to your recent 64-bit DMA changes committed in
> sys/dev/usb?

Likely.  Hope to have some time to investigate this in the coming days.

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