VirtualBox

Opened 14 years ago

Last modified 8 years ago

#6658 closed defect

TS08 works great under two cores but crashes with eight — at Initial Version

Reported by: ToddAndMargo Owned by:
Component: other Version: VirtualBox 3.1.6
Keywords: Cc:
Guest type: Windows Host type: Linux

Description

Hi All,

Host: CentOS 5.4 64 bit Guest: Windows Server 2008 SP2 32 bit as a Terminal Server (TS) Virtual Machine: Virtual Box 3.1.6 Virtual Box Guest Additions: 3.1.6

Over the weekend I upgraded my motherboard and processor:

Old:

Xeon 5130 (2 Cores) Supermicro MBD-X7DVL-E-O motherboard two cores assigned to the VM

New:

Xeon X5650 (6 core, 12 virtual cores) Supermicro X8SAX Eight cores assigned to the VM (reduced to two)

Problem: with eight cores assigned to the Terminal Server, my CPU's hit 100% for approximately 3 to 10 minutes when users try to log in to Terminal Services.

And, if more than two users are logged in, when the third user tries to log on, the Terminal Server freezes up (no notes in the event log either). The Terminal Server is very unstable

Work around: tell the VM it only has two cores.

Under two cores, this VM is a delight. My CPU only hits about 75% for about 5 seconds when someone tries to log on and the system is suddenly totally stable.

I also have a second Terminal Server 2003 on the same motherboard under the same conditions as above. The only two exeptions are Windows Server 2003 and an i7-920 processor. I have seven of the cores assigned to the guest. And, it work beautifully. Kind of fun to use.

Many thanks, -T

P.s as I am writing this, I have noticed that five users are now logged on and my CPU is only bobbing up to about 5%.

p.s.s I realized this could be a Microsoft problem, but since they already blamed it on you guys, I am reporting it to you.

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