You might need to specify the bridges/busses in Config.lb. I know the current code works and can handle this.
Does anyone can help on this ?
Without something like a serial console trace so that the details of what are going on are clear I don't know.
Please see that attached log. As you ca see the HyperTransport scan is not actually done in northbridge.c:amdk8_scan_chain(). It only prints the message before and after the for loop but skip the loop.
Ollie
I have a hunch. The default code for setting things up is for pci devices. In the opteron mainboard files we need to specify non-default operations so we do the hypertransport scan. One of the things that does is to put everything back at devfn 0 if they have changed from someplace else.
amdk8_scan_root_bus very deliberately avoids all of the other functions that are not cpus so if you are using it I don't see how you would run into the problem you have described.
Eric