4.10-rc3 rpi issues

[Gerd Hoffmann]

On Do, 2017-01-12 at 20:54 +0100, Stefan Wahren wrote:
> > Gerd Hoffmann <kraxel at redhat.com> hat am 12. Januar 2017 um 16:46 geschrieben:
> > 
> > 
> >   Hi,
> > 
> > > > The upstream USB driver has many, many limitations.   I'm not surprised
> > > > that you're having intermittent issues.  The issues are worse if you
> > > > have many devices attached or you have devices of very different
> > > > speeds(say keyboard + Wifi).
> > > 
> > > this can't be the reason because it already worked with 4.9. So it must be a regression from the many changes in 4.10.
> > 
> > I've connected the keyboard b/c ssh login over wifi stopped working.  It
> > happens with only two devices (builtin ethernet and wifi, both
> > highspeed) too.
> 
> Does the issue occures if all USB devices are already connected before power up?
> 
> > 
> > And, yes, 4.9 dwc2 has no problems handling all three devices.
> 
> Could you please bisect this issue?

Guess I'll try to pin down the other issue (non-modular kernels
crashing) first.  /me ordered a usb-serial which should arrive today and
give me logs useful for that one.

Being able to cross-build and netboot kernels will speed up the
bisecting an order of magnitude ...

cheers,
  Gerd