x264 fails to run / PTS-2.6 "Lyngen" Beta 3

[kozaki]

x264 do fails to run in this location.
Other tests run just fine (the whole bunch from "Linux System" incl.).

./phoronix-test-suite benchmark x264

x264:
    x264
    Expected Trial Run Count: 3
        Started Run 1 @ 18:59:43
        The test exited with a non-zero exit status. Test run failed.
        Started Run 2 @ 18:59:45
        The test exited with a non-zero exit status. Test run failed.
        Started Run 3 @ 18:59:47
        The test exited with a non-zero exit status. Test run failed.

    Test Results:

    Average: 0 Frames Per Second
    This test failed to run properly.

Any help to be able to run this test much appreciated.
Test system:
kernel 2.6.31
Mandriva 2009.1 x86_64

[kozaki]

Also happends on Arch linux x86_64
x264 test installs fine but won't run.
Other tests install (excepted nero2d) and run fine.

Test system:
Linux llewellyn.arch 2.6.33-ARCH #1 SMP PREEMPT Thu May 13 11:32:37 CEST 2010 x86_64 AMD Athlon(tm) 64 Processor 3200+ AuthenticAMD GNU/Linux