Diagnosing probable USB hardware failure

[Phil Norman]

I hadn't; thanks for that.

It certainly spams a lot. I've dumped /var/log/messages (since a recent
reboot with the USB system going nuts) here:
http://splodge.fluff.org/~phil/messages-2019-01-24.txt

Cheers,
Phil

On Thu, 24 Jan 2019 at 22:02, Hans Petter Selasky <hps at selasky.org> wrote:

> On 1/24/19 9:51 PM, Phil Norman wrote:
> > Hi.
> >
> > I have a Ryzen 3 1200, and Fatal1ty X370 mini-ITX motherboard. I've been
> > suffering USB problems (details here:
> > https://lists.freebsd.org/pipermail/freebsd-stable/2018-June/089155.html
> )
> > for a long time, have tried a bunch of BIOS updates, including the latest
> > for my motherboard. I've also gone through 3 versions of FreeBSD, and am
> > now on 12/stable.
> >
> > In short, the only way I can have a stable USB system is by switching
> power
> > off, then booting up from cold, and then not removing or inserting any
> USB
> > devices. Kind of annoying.
> >
> > I'm pretty convinced this is not an OS issue (I had the same problem on
> > NetBSD, and instability on Linux too, before I switched to FreeBSD).
> > However, I have no idea how much of the USB hardware is implemented in
> the
> > CPU, and how much in the motherboard. Can anyone help me with this
> > question, or point me at diagnostic tools for figuring out where the
> > problem is?
> >
> > I'd be *very* happy to solve this problem.
> >
>
> Hi,
>
> Did you try to enable the XHCI debugging sysctl to get more information?
>
> sysctl hw.usb.xhci.debug=16
>
> --HPS
>