Rollback fails

[davidkarlsen]

When I attempt rollback I get:
VBoxManage: error: cpum#1: X86_CPUID_FEATURE_EDX_HTT is not supported by the host but has already exposed to the guest ver=14 pass=final

and after that the host will be unavailable.

[ryuzee]

Could you please describe the versions of VirtualBox and Vagrant?
Sahara is the simple wrapper of VBoxManage and these kinds of messages were shown by that command. So updating your VirtualBox and Vagrant would resolve the problem.
Thanks

[davidkarlsen]

-bash-4.1$ rpm -qa|grep -i box
VirtualBox-4.3-4.3.6_91406_el6-1.x86_64
-bash-4.1$ VBoxManage --version
4.3.6r91406
-bash-4.1$ vagrant --version
Vagrant 1.4.3
-bash-4.1$

-bash-4.1$ cat /proc/cpuinfo |grep -i ht
-bash-4.1$

It actually works on another system (but that has other architecture which has hyperthreading):
et2448@ubuntu:/projects/tac/jfr/tac-jfr-server$ VBoxManage --version
4.3.10r93012
et2448@ubuntu:/projects/tac/jfr/tac-jfr-server$ vagrant --version
Vagrant 1.5.1 (also worked with 1.4.3)
et2448@ubuntu:/projects/tac/jfr/tac-jfr-server$
et2448@ubuntu:/projects/tac/jfr/tac-jfr-server$ cat /proc/cpuinfo |grep -i HT
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms

[ghost]

Same problem after upgrading vbox/vagrant.
Filed an issue with VirtualBox: https://www.virtualbox.org/ticket/12896

[ghost]

Probably close this as it was a virtualbox issue.