VirtualBox

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Ticket Resolution Summary Owner Reporter
#10717 obsolete Scale Mode not working properly in Windows XP guest. tsampikos
Description

Host OS: Windows 7x64 Guest OS: Windows XP 32 bit, Windows 7 32bit Host GPU: Radeon HD 6570, Catalyst 12.6 (latest).

When the Guest OS starts in Scale Mode, the Scale mode is working properly. But using ctrl+c to switch back to window mode and then again to Scale Mode the screen turns black or freezes with no possibility to do anything else, except from restarting the VM.

#10721 obsolete Assert(DevATA.cpp:5053) during Windows 98 setup & MS-DOS text is unreadable WinManager
Description

After trying several times to successfully install Windows 98 as guest on a virtual machine (and following every bit of advice postet on the internet, including the VirtualBox forums) I still couldn't get Windows 98 running. At first the machine always stopped reacting after restarting itself during the setup during hardware detection (~13/14 minutes stage). After not beeing able to localize the problem I decided to run the virtual machine with VT-x accelaration. This led to unreadable MS-DOS text (but by then I was knowing what commands there were to enter without needing to be able to read anything), but otwerwise worked quite well until VirtualBox crashed (again at about 13 or 14 minutes to go during setup). For further details see attached files. Perhaps there's also a workaround for the unreadable MS-DOS text problem with enabled VT-x acceleration!? (Instead of the text just undefinable nonsense is displayed.)

#10722 obsolete Excessive Page Faults in VirtualBox Stewart Berman
Description

Host: Windows 7 Ultimate x64 SP1 with all important patches VirtualBox 5.1.18 Guest: Windows 7 Ultimate x64 SP1 with all important patches assigned 1.5GB RAM.

I notice that VirtualBox seem to have an excessive number of page faults -- even when the guest is idle. This happens if the guest is started and left with the login screen up. It also happens if a user is logged into the guest. I started a guest, let it sit idle for a few minutes and then logged into it and let it sit ideal. The total elapsed time was twenty minutes and it is up to 2.5 million page faults and generating them at a rate of about one to two thousand a second. Yet the peak working set is only 114,696 K, the paged pool is 592 K and the NP Pool is 131 K.

I created a test machine defined as Windows 7 without a hard drive an nothing in the DVD driver and powered it up. It is getting page faults at a low rate of a dozen or so a second. Every now and then it will get over a hundred in a second. This is without anything running in the VM.

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