“The final 2.6.24 Linux kernel is expected any day now, so the
various subsystem maintainers have begun summarizing what changes
are expected to be merged into the mainline kernel during the
2.6.25 merge window. Ingo Molnar spoke to changes for the x86
architecture, ‘there are 763 commits in x86.git so far, from more
than 90 contributors, so it would be difficult to mention and
credit every contribution in this mail.’ Along with a lengthy list
of other changes, he included:“‘Continued, intense arch/x86 unification and cleanup work by
lots of people; FIFO ticket spinlocks for better spinlock
scalability; ‘regset’ generalizations – the most important step
towards utrace support (==next-gen ptrace); support for more than
255 CPUs [up to 4096 – in theory up to 65535]; almost complete
64-bit paravirt guest support; KGDB support on x86,
finally…!'”