RHV: Migrating guest fails tests such as prime95 or linpack.
Issue
- Prime95 fails when the VM is live migrated:
[Work thread Jan 15 11:14] Test 1, 36000 Lucas-Lehmer iterations of M8716289 using AVX FFT length 448K, Pass1=448, Pass2=1K, clm=2.
[Work thread Jan 15 11:16] FATAL ERROR: Rounding was 0.5, expected less than 0.4
- Linpack fails when the guest is live migrated:
=================== Timing linear equation system solver ===================
Size LDA Align. Time(s) GFlops Residual Residual(norm) Check
14300 14300 1 40.612 48.0126 1.018849e+01 1.763139e+09 FAIL
Environment
Including, but not limited to:
- Red Hat Virtualization 4.x
- Red Hat Enterprise Linux 7.3 and 7.4 Hosts
- Red Hat Enterprise Linux 6 and 7 Guests
- Intel Sandy Bridge CPU or newer (AVX)
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