2.6.38-rc6 is a kernel. The 2.6.38-rc6 has been tested via the Phoronix Test Suite in the configurations listed below.
fafnir-20110223 - Tests on Ubuntu 10.04, Intel Core 2 Duo U7600, Intel Mobile GM965, HP 30C9
fafnir-20110223 - Tests on Ubuntu 10.04, Intel Core 2 Duo U7600, Intel Mobile GM965, HP 30C9
fafnir-20110223 - Tests on Ubuntu 10.04, Intel Core 2 Duo U7600, Intel Mobile GM965, HP 30C9
Linux 2.6.38-rc6 Kernel Released; Lots Of Small Fixes: The Linux 2.6.38-rc6 kernel has been released. The 2.6.38 kernel is getting into shape and will soon be released with the sixth release candidate carrying a variety of small fixes throughout this open-source kernel...