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Ticket Resolution Summary Owner Reporter
#11168 fixed CPU MSRs do not return correct values apianti
Description

I am currently testing an EFI application, the problem is that CPU MSRs such as IA32_PERF_STATUS(MSR_PERF_STATUS) and MSR_PLATFORM_INFO return incorrect, often insane values, causing the application to crash the virtual machine. IA32_PERF_STATUS always returns zero. MSR_PLATFORM_INFO returns maximum and minimum multipliers lower than the CPU can even provide. For me it returns a value of four for both, even though the TSC runs at a multiplier of 33, and Intel Sandy/Ivy bridge/Nehalem CPUs can't operate below multiplier sixteen. I have tried in multiple hosts including Windows 7, multiple flavors of Linux, and Mac OS X Lion and Mountain Lion, all provide incorrect values.

#6814 worksforme CPU Usage 100% when giving 2 CPUs to Guest danf84
Description

When 2 CPUs are given to the Guest, the CPU usage during Windows XP install (even during idle times) is 100% and the machine is barely usable. Reducing to 1 CPU works as normal (no more than 10% of usage, if that). There clearly is a problem with the latest 3.2.0 version.

#1995 duplicate CPU at 100% (migrated XP guest from VMWare) Doug Roberts
Description

The CPU is pegged with my XP Windows guest. The Host is an AMD 64 dual core running Kubuntu 8.04:

root@igor:/home/roberts/linux# uname -a Linux igor 2.6.24-19-generic #1 SMP Fri Jul 11 21:01:46 UTC 2008 x86_64 GNU/Linux

I have tried turning off clipboard and USB -- neither helped.

The virtual disk image is one that was converted to a single disk image from a multiple VMWare disk image set.

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