id summary reporter owner description type status component version resolution keywords cc guest host 14099 MSR_PKG_C[8-10]_RESIDENCY are not provided with Haswell-ULT host CPU yarda "MSR implementation under !VirtualBox is quite usable, but the following MSRs are not provided if running on Haswell-ULT host CPU (e.g. CPU model number 0x45): {{{ MSR_PKG_C8_RESIDENCY, MSR register 0x630 MSR_PKG_C9_RESIDENCY, MSR register 0x631 MSR_PKG_C10_RESIDENCY, MSR register 0x632 }}} This may crash applications depending on these MSRs as they should be supported according to CPU model number. Currently PowerTOP is known to crash if running in guest using Haswell-ULT host CPU. " defect closed other VirtualBox 4.3.26 wontfix other other