On Wed, 15 Apr 2009 18:32:52 +0100 Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> wrote: > > Saying that we were "lucky" that things worked before is no help and > > you should be aware that it ticks people off. > > No doubt those who wrote the code and never expected that timing to > reliably work will take affront at those who blame them for it not > working. It's even more than that; it's OTHER code that gets faster that can/will break this. > Those who expected it to work and never knew it was not > guaranteed will feel likewise in reverse. For storage at least the solution already existed (root_wait); it just hasn't been used consistently. For other pieces it's hard. Non-enumeratable busses just suck; at some point all you can do is just wait (which we have already available today for anyone to do). I realize people don't want to just wait 4 seconds (the people who first objected to boot time improvements then suddenly care about boot time ;-)... For root fs there's some options, and I have patches to basically retry on fail. (The patches have a bug and I don't have time to solve it this week, so I'm not submitting them) For other devices it is hard. Realistically we need hotplug to work well enough so that when a device shows up, we can just hook it up when it does. -- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
