On Wed, Apr 24, 2013 at 3:55 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote: > On Wednesday, April 24, 2013 02:03:04 PM Bjorn Helgaas wrote: >> >> We install a notify handler on PCI0 in find_root_bridges(), and that >> notify handler leads to _handle_hotplug_event_root(), which assumes >> this is a host bridge hotplug event. But I would expect the notify >> for a host bridge hot-add would go to the *parent* of the host bridge, >> not to the host bridge itself, so something seems wrong here. >> >> Maybe the ACPI & hotplug experts can comment on this. > > I think it may (ie. won't be against the spec) go both ways, so it may go > to the parent or the host bridge object itself. We should be handling both > cases IMO. Yes, we missed that path. Attached patch should fix the problem. Gavin, Can you please check that on top of pci/next? Thanks Yinghai
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acpiphp_check_host_bridge.patch
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