[PATCH] PCI bus number management

Michael Butler imb at protected-networks.net
Tue Feb 11 12:25:59 UTC 2014


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On 02/06/14 14:37, John Baldwin wrote:
> I would like to commit this to HEAD soon but thought I would post it for some 
> pre-commit testing for the brave. :)  If you are really brave, try booting 
> with 'hw.pci.clear_buses=1' which will force the kernel to renumber all buses 
> in the system.  If you are really, really brave, try booting with 
> 'hw.pci.clear_bars=1', 'hw.pci.clear_buses=1', and 'hw.pci.clear_pcib=1'.  (My 
> laptop survives with all those set)

My Toshiba Satellite A-105 survives all three with one oddity - when
'clear_bars' is set, it recognizes that a USB mouse is attached but
neither the external USB drive or webcam.

	imb


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