It has confusion: L1 Cache: Unknown | Test #6 [Moving inversions, 32 bit pattern] L2 Cache: Unknown | Testing: 120K - 256M 255M
See if you can make sure this is not another memtest bug. For a long time, memtest did not know that Geode LX CPUID meant to read the cache information like an AMD processor. I think the issue was fixed in more recent memtest versions. If memtest is ok, make sure the cache information MSRs for CPUID are being programmed correctly.