> 2.5.69-bk19 dunno. BitKeeper? Yep, bitkeeper. > 2.5.70-osdl1 ? osdl is the Open Source Development Lab. They recently released a patch allowing a kernel to be loaded again immediately after shutdown, which effectively reboots the machine without going through the usual BIOS stuff. I'm sure they've done other, more exciting things, but I don't know what. The most interesting tree is probably Andrew Mortons anyway, it seems to generate the most discussion on lkml, and Andrew himself is one of the most active 2.5 developers, as far as I can make out. Personally I run 2.4.20 with the -ck patch, Con Kolivas' backports of 2.5 improvements to 2.4, though I can't say I've noticed any performance difference compared to vanilla 2.4.20. If you want a really interesting patch, and you've got a few spare boxes, try openmosix (openmosix.sourceforge.net) - it allows processes to migrate from one box to another, for load balancing/fun/profit. -kev -- There is nothing more attractive to a woman than a stable man with a 9 to 5 job. -Hank Hill -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/