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Subject: Re: Thunderbolt adapter fails to instantiate USB and device
 enumeration if already connected at boot time
From: Oliver Neukum <oneukum@suse.com>
To: Chris Murphy <lists@colorremedies.com>
Cc: Alan Stern <stern@rowland.harvard.edu>, linux-pci@vger.kernel.org,
        linux-usb@vger.kernel.org
Date: Tue, 03 Jan 2017 10:28:57 +0100
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On Mon, 2017-01-02 at 14:45 -0700, Chris Murphy wrote:
> I see these lines in the problem case, which don't occur in the
> working case.
> 
> [    0.561046] pci_bus 0000:37: busn_res: [bus 37-ff] end is updated
> to 37
> [    0.561047] pci_bus 0000:37: busn_res: can not insert [bus 37]
> under domain [bus 00-ff] (conflicts with (null) [bus 00-fe])
> 
> [    0.579446] pci 0000:37:00.0: can't claim BAR 0 [mem
> 0xb0000000-0xb000ffff]: address conflict with PCI Bus 0000:00 [mem
> 0x40000000-0xdfffffff window]
> 
> [    0.602277] pci 0000:37:00.0: can't derive routing for PCI INT A
> [    0.602280] pci 0000:37:00.0: PCI INT A: not connected
> [    0.612304] pci 0000:37:00.0: xHCI HW not ready after 5 sec (HC
> bug?) status = 0xffffffff

Have you tried "pci=realloc"?

	Regards
		Oliver