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Ticket Resolution Summary Owner Reporter
#7258 duplicate Host freeze if intel VT is enabled (Gigabyte) woec
Description

When resuming after having suspended (S3) and starting a VM with vt-x enabled, the host freezes. The VM runs without problems when starting it from host which was not ever suspended before since last boot. Seems to be same isssue as reported in #5048 and #7216.

Following new aspect: reading out the corresponding Machine register, which controls the VT-x function - IA32_Feature_Control (MSR 0x0000003a, Bits [2:0]) using the msr-tools (rdmsr), I got a value of 5 - which means VT-x is enabled. Result is 5, independently on machine history (S3 before or new booted machine). I found also that this register is write protected, I was not able to change its value by means of wrmsr. So I conclude, VT-x is enabled from the BIOS and it does not change its state while suspend and resume.

I am also quite sure, that the problem described here was not there on older versions of virtualbox under same machine configuration (maybe before 3.0.10).

My machine configuration: CPU: Intel E8400, Mobo: Gigabyte GA-EP35-DS3, 4 GB RAM, Debian Linux squeeze, kernel 2.6.32-5-686-bigmem

#13362 obsolete Host-only interface for multiple users: VERR_INTNET_INCOMPATIBLE_FLAGS when DHCP server enabled wodny
Description

A problem with host-only (vboxnet) interfaces when being used by multiple users has been already discussed. The solution is to setextradata VBoxInternal/Devices/e1000/<iface_index>/LUN#0/Config/RestrictAccess to 0 on all machines using the interface.

But it seems that, when the DHCP server is enabled for a host-only interface, the VBoxNetDHCP does not take those RestrictAccess settings into account. It starts first and creates a restricted interface. When machines later start, they are unable to switch that interface to the public security profile.

The error is:

Failed to construct 'e1000'/2! VERR_INTNET_INCOMPATIBLE_FLAGS (-3604) - The network already exists with a different security profile (restricted / public).

Is there any other workaround apart from disabling DHCP?

#8132 worksforme Guest additions wont install for Scientific Linux 6 (RHEL 6) on newest kernel 2.6.32-71.14.1 woboyle
Description

I am running Scientific Linux 6 as a guest on CentOS 5.5 as host w/ VBox 3.2.12 r68302. The guest additions install and run just fine on the previous 2.6.32-71.7.1 kernel, but the main module fails to install on the latest 2.6.32-71.14.1 kernel. When I tried to install the modules manually it came up with a bunch of missing symbols in the weak_modules installation.

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