I did a build with a lightly modified defconfig, and installed. On first
boot test the system looped complaining about the nbd and listing many
errors I couldn't capture regarding nbd5-nbd0. Hardware description is 
in the lshw file.

I took out nbd for the moment, and reinstalled. That gave warnings about
fd0 sector 0 errors, but eventually booted. That kernel seems to run
reasonably well, dmesg also attached, with the config file from /proc.

I downloaded kvm-10 and built that. It did not correctly handle
"../linux-2.6.20-rc4" as the kernel tree, it seemed to strip the leading
".." from the name. I reconfigured and installed using a full tree path.
On trying to install a test of Win98SE, qemu got to the surface scan
(last item of the install) and ended with:
     exception 13 (0)
     Aborted

I used no-acpi and tried with and without win2k-hack option. Since the
kernel has recent KVM patches I didn't build the module (used
--with-patched-kernel). I later tried building the kvm module, but that 
doesn't load with this kernel.

System is historically stable, and I ran memtest for 12hr about a week
ago, so I have no reason to suspect a memory problem. Memory and CPU are
not overclocked, CPU and case temps are good, I doubt this is hardware, 
VMware with WinXP was tested by someone else on this system.

Attached: config, cpuinfo, dmesg, hardware scan, and a copy of the error.

Two problems:
  - kvm will not run anything in VM, probably some config or FC6 issue. I
    did try with selinux in advisory mode, but I don't want to run with
    it off.
  - system with nbd configured will not boot (and doesn't write log file)
    I could belive that's lightly tested.

-- 
Bill Davidsen
   He was a full-time professional cat, not some moonlighting
ferret or weasel. He knew about these things.