On Mar 24, 2006, at 9:10 AM, Bastian Blank wrote:
On Fri, Mar 24, 2006 at 03:40:46PM +0100, Frans Pop wrote:I guess you mean that ctc will be loaded as part of the processing of/sys/bus/ccw/devices/0.0.0a00 so loading it "manually" in /etc/ modules isno longer needed?Exactly. But there is another problem left: A race condition happens if only 0.0.0a00 is available but 0.0.0a01 not. If the later appears, it can't find the proper config to use.
Have we seen this in practice?Because of the way the CTC driver is structured, one address is input and one is output if you're speaking IP over it. It's not like using CTC for RSCS where each address is bidirectional. So if only one of the pair is there, I'd say that it's broken and you shouldn't try to use it as a network device. Now if it comes up later, it would be nice to autodetect that and tell that you now had a CTC pair and try to start the interface...but that might be a lot more trouble than it's worth. If your CTCs are flapping, something's clearly pretty wrong already.
Adam