virtualbox.org

mmarkk@mmarkk-desktop:~$ uname -a
Linux mmarkk-desktop 2.6.28-14-generic #47-Ubuntu SMP Sat Jul 25 00:28:35 UTC 2009 i686 GNU/Linux
mmarkk@mmarkk-desktop:~$ VirtualBox --help
Sun VirtualBox Graphical User Interface 2.2.0
(C) 2005-2009 Sun Microsystems, Inc.
All rights reserved.
mmarkk@mmarkk-desktop:~$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Intel(R) Core(TM)2 CPU E7600 @ 3.06GHz
stepping : 10
cpu MHz : 3058.811
cache size : 3072 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
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 nx lm constant_tsc arch_perfmon pebs bts pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm tpr_shadow vnmi flexpriority
bogomips : 6117.62
clflush size : 64
power management:

My kernel hangs when loading virtual machine with VT-X enabled. I have screenshot attached.
Without VT-X virtual machine work OK. I don't know how to add bug to bugtracker. I have no rights.

I forgot. HOST kernel panic.

The guest was linux 2.4

Is vt-x supported in the BIOS? you might try vbox 2.2.4

vbox4me2 wrote:Is vt-x supported in the BIOS? you might try vbox 2.2.4

Yes, VT-X enabled in BIOS and work OK, when using Ubuntu or Windows as guest.
vmx flag present in /proc/cpuinfo as shown.

markk@mmarkk-desktop:~$ VirtualBox --help
Sun VirtualBox Graphical User Interface 2.2.4
(C) 2005-2009 Sun Microsystems, Inc.
All rights reserved.

The same issue....

Virtualbox 3.0.6
All the same...