Fedora Core 5 with the 2.6.16_2080_FC5-i686 kernel
and its bugged... or other things are perhaps...
anyway the livna repo nvidia driver needs a manual fix or you dont get GL-acceleration, you have to hack the message.h and netpacket.h sources ( src/common/net/ ) in PS or your flooded with errors due to the 4.1 gcc compiler it ships with.
plus the xordan installer ( PlaneShift 0.14 CVB.bin file ) segvaults, it appears to have corrupted ELF headers. So you cant run that...

but beyond that, its very stable any ultra quick to boot.