>>We haven't had a problem with dual AMD or even Dual Xeon systems with >>the 2174 build. On the rare occasion during boot, I have seen a hang at >>enabling swap, but let's call that 1 out of 5 boots. >> >>I've got server's everywhere running this kernel >> >> >> > It all seems to depend on how you set it up.. My server installs are > fine with the FC SMP kernel but workstations hang regularly.. I don't know if the problem is/was x86-specific, but I have a dual Opteron machine running FC1-x86_64 with the default smp kernel (for now), no problems at boot time or run time.