"I don't want to open a 2.5.x development tree until
I'm happy with the pending issues for 2.4.x - it's taken longer
than I hoped for, but it's getting there. Within the month..
The biggest issues for 2.5.x (and the eventual 2.6 or 3.0
release) will probably be NUMA and other big machine scalability,
along with an overhaul of the disk IO layer. At the same time, most
of what affects "normal" users is the continued driver development
The other part of scalability is scaling down (that's the part
that most "scalable" projects forget completely about), and there
the interesting stuff is mostly about some of the QoS issues that
some embedded users have. We'll see where that takes us."