VirtualBox

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Ticket Resolution Summary Owner Reporter
#10724 obsolete GM(VERR_VMM_RING0_ASSERTION at PGMAllBth.h:1458) with Windows Server 2008 R2 guest and Linux host Geoff Nordli
Description

I am consistently getting a guru meditation with a Windows Server 2008 R2 guest running on an Ubuntu 10.04 host.

#10726 obsolete Disk writes only at shutdown q
Description

I am running VirtualBox 4.1.18 on W7 x64 and running a Linux guest. The problem is that disk writes are only written on the VDI file when the VM exits. The problem here is that if the system hangs or there is a problem the changes to the VM wont be written to the VDI. It is a problem to me as the VM runs for days without shutting down.

I started running a VMDK VM created with VMWARE Server. The guest was installed on the SCSI interface. At first I thought this was the problem so I created and installed a new VM with Virtual box and a new vdi on the SATA interface. Reinstalled Linux. Tried running Headless and from the GUI.

Have tried with "Use Host IO" option on and off,

VBoxManage setextradata "elastix" "VBoxInternal/Devices/ahci/0/LUN#0/Config/IgnoreFlush" 0

VBoxManage setextradata "elastix" "VBoxInternal/Devices/ahci/0/LUN#0/Config/FlushInterval" 1

Turned Host Windows Write Cache off

The VBoxManage settings seem to be in the .vbox file but when the VM shutsdown those settings are moved to the -prev file and removed from the .vbox file.

Nothing seems to help.

There has to be a way to make disk writes be written on the vdi file immediately.

#10733 obsolete VBoxSVC uses > 100% of CPU, even if no VM is running ElectricSnark
Description

This is on a linux host (debian, 3.0.0 kernel), running version 4.1.18 of virtualbox.

Starting the "Oracle VM VirtualBox Manager" creates the VBoxSVC process which consumes > 100% of CPU, as reported by ps, before any VM is started.

See the forum posting at https://forums.virtualbox.org/viewtopic.php?f=7&t=50342&p=230158#p230158 for some ps stats.

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