Breaking backwards compatiblity

[so]

On Saturday, 10 March 2012 at 15:27:00 UTC, H. S. Teoh wrote:
> On Sat, Mar 10, 2012 at 04:23:43PM +0100, Adam D. Ruppe wrote:
>> On Saturday, 10 March 2012 at 15:19:15 UTC, H. S. Teoh wrote:
>> >Since when is mouse movement a stop-the-world event on Linux?
>> 
>> It's a hardware interrupt. They all work that way. You have
>> to give a lot of care to handling them very quickly and
>> not letting them stack up (lest the whole system freeze).
>
> Sure, but I've never seen a problem with that.

Neither the OS developers, especially when they are on 999kTB ram 
and 1billion core processors.