2.6.38- is a kernel. The 2.6.38- has been tested via the Phoronix Test Suite in the configurations listed below.
bzip2 - Tests on LinuxMint 9, Intel Xeon X5647, Quadro NVS 450, LENOVO Lenovo
ws-ubuhf - Tests on LinuxMint 9, Intel Xeon X5647, Quadro NVS 450, LENOVO Lenovo
2012-03-02-1613 - Tests on LinuxMint 9, Intel Xeon X5647, Quadro NVS 450, LENOVO Lenovo
Core i7 2600 - Tests on Ubuntu 11.04, Intel Core i7-2600, Intel 2nd Generation Core Family IGP, HP 1495
testdbench - Tests on Ubuntu 10.04, Intel Core 2 Quad Q9550, GeForce 9300, ASUS P5N7A-VM
test hdparm - Tests on Ubuntu 10.04, Intel Core 2 Quad Q9550, GeForce 9300, ASUS P5N7A-VM
t420byte - Tests on Ubuntu 10.04, Intel Core i3-2310M, Intel Device 0116, LENOVO 4177CTO
bytebench - Tests on Ubuntu 10.10, Ubuntu 11.04, Intel Xeon 3.20GHz, ATI Radeon RV100 QY, Dell 0D7449, Intel Xeon 3.00GHz, Dell 0D8266
cool1 - Tests on Ubuntu 11.04, QEMU Virtual 0.14.0, Cirrus Logic GD 5446
hdparm-read-sdc - Tests on Ubuntu 10.04, Intel Core 2 Quad Q9550, GeForce 9300, ASUS P5N7A-VM
compbench - Tests on Ubuntu 10.04, Intel Core 2 Quad Q9550, GeForce 9300, ASUS P5N7A-VM
Felicitus - Tests on Gentoo 2.0.3, Intel Core i7 950, Gallium 0.4 on AMD JUNIPER, ASUS SABERTOOTH X58
test7 - Tests on Ubuntu 10.04, Intel Core 2 Quad Q9550, GeForce 9800 GT, ASUS P5QL-E
test6 - Tests on Ubuntu 10.04, Intel Core 2 Quad Q9550, GeForce 9800 GT, ASUS P5QL-E
Linux 2.6.38-rc7 Kernel Released: The stable Linux 2.6.38 kernel is in sight. Linus Torvalds has released the Linux 2.6.38-rc7 kernel, which is much less interesting than his weekend at an Oscar party...
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...
Linux 2.6.38-rc5 Brings Radeon, Intel, EXT4 Fixes: In his weekly manner, Linus Torvalds has released the Linux 2.6.38-rc5 kernel, This fifth test release isn't particularly exciting, but it brings scattered bug-fixes to the Intel and Radeon graphics drivers, EXT4 file-system fixes, and a RCU file-name lookup bug found under Ubuntu...
Linux 2.6.38-rc4 Kernel Released: The fourth release candidate of the Linux 2.6.38 kernel is now available...
The Linux 2.6.38-rc3 Kernel Arrives: After Linus released an early Linux 2.6.38-rc2 kernel due to the 2011 Linux.Conf.Au, Linus has released the Linux 2.6.38-rc3 kernel while developers are returning from this Australian conference...
That Was Quick: Here's Linux 2.6.38-rc2 Kernel: The Linux 2.6.38 kernel is shaping up to be very exciting even though it's first release candidate arrived just four days ago. Tonight, however, the Linux 2.6.38-rc1 kernel has already been superseded by the Linux 2.6.38-rc2 release...
Linux 2.6.38-rc1 Is Here With Two Features Linus Loves: After keeping the Linux 2.6.38 kernel merge window open for two weeks, Linus Torvalds has this evening announced the release of the Linux 2.6.38-rc1 kernel. This kernel has a lot to love about it, including Linus' two favorite features of the group scheduling improvements and the RCU-based path name lookup support.