VirtualBox

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Ticket Resolution Summary Owner Reporter
#7525 fixed Virtualbox 3.2.8 on OSOL b134 with high load Ubuntu 10.04.1 Server guest hangs zebra
Description

Hi.

Problem isn't a simple one to pin down.

Background info from my post here:

http://forums.virtualbox.org/viewtopic.php?f=11&t=34495&start=0

Effectively, an OpenSolaris b134 64bit host with a Q6600 CPU base on the bare metal. Guest is Ubuntu Server 10.04.1 fully patched.

When running the Ubuntu VM guest, we find that under high CPU time/IO load using several different methods to generate said CPU utilisation (cifsd, nfsd), the host will hang, spinlock and use 100% CPU time of said guest. Becomes completely unresponsive. The only solution is to shutdown vbox forcefully, and start it up again.

Removing SMP capability, and allocating only a single core seems to remedy this instability.

Please see the VBox log file. Not sure if it's useful - can confirm however 100% that allocating more than one physical proc to the guest creates this scenario, and removing it stabilises the issue. NB: The guest was initially installed with both cores. It is *only* unstable when high load scenarios are apparent inside the guest.

#10423 obsolete guest additions incompatible with windows server 8 zdzichu
Description

after installing guest additions on windows server 8, some windows stopped working. in example, server manager i completly black, only frame with min,max,close is visible. when i try to use show-command command with powershell it show this errors OpenGL Warning: Returning GetProcAddress:NULL for wglSetPixelFormatWINE No pincher, please call crStateSetCurrentPointers() in your SPU and created window is also black.

after uninstalling guest addition it comes back to normal

#3189 fixed ctrl-alt-bckspace in KDE 3.5.10 crash Zdenko
Description

host: Win XP SP3 guest: Slackware 12.2 kernel 2.6.27.7 + KDE 3.5.10 VBOX: 2.1.2 From KDE pressed ctrl+leftalt+bckspace to close KDE & to go to console crashed guest. The same happened when trying to exit from KDE with GUI - Kmenu -> Logout -> End_current_session.

It is impossible to exit from KDE.

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