Re: pci-3.14 resource alloc

[Steven Newbury <steve@snewbury.org.uk>]

On Tue, 2014-02-18 at 23:29 +0100, Rafael J. Wysocki wrote:
> On Tuesday, February 18, 2014 10:52:54 AM Yinghai Lu wrote:
> > On Tue, Feb 18, 2014 at 2:08 AM, Steven Newbury <steve@snewbury.org.uk> wrote:
> > >> >
> > >> > There's no pci bridge/bus hotplug though. Docking doesn't reveal the
> > >> > pci-e->pci bridge or the (radeon) devices on the other side.
> > >>
> > >> oh, no. could be other regression in linus tree or pci/next.
> > >>
> > >
> > > Previously I needed the busn work to get it working, this was included
> > > in the resource-alloc branch.  It never worked on mainline, the bridge
> > > used to show up but never get scanned.  Now it's not showing up at all
> > > on hotplug.  It could be a dock driver regression.
> > 
> > I had the busn_res_alloc patches in the branch.
> > 
> > There is some changes about acpi dock driver from Rafael in recent
> > kernels. Maybe Rafael could suggest which commit could cause problem,
> > then you could try revert them on top of branch.
> 
> I kind of suspect what might have caused them, but that particular thing
> would not be easy to revert.
> 
> Steven, what was the last kernel in which the bridge showed up?
> 
> Did you test 3.14-rc3?
> 
> Rafael
> 

I'll try a few different kernels today and see when it last worked.  I
hadn't updated the machine since some 3.12-rc + my local patches so I've
no idea at the moment when it stopped working...