Opened 7 years ago
Closed 5 years ago
#18079 closed defect (obsolete)
Incorrect CPU cores detection
| Reported by: | VasilyL | Owned by: | |
|---|---|---|---|
| Component: | VMM | Version: | VirtualBox 5.2.20 |
| Keywords: | CPU, core, SVM, AMD-V | Cc: | vld10@… |
| Guest type: | Linux | Host type: | Windows |
Description
I have a AMD FX-4100. It's a quad core CPU. I've created new VM for Live Linux. GUI detects only 2 cores. If I try to setup more than 2 cores for VM, GUI says that I've setup more cores, that physically available. I tried to downgrade and gone down all way to somewhere around 4.2.20. GUI there detects cores normally, but when starting VMS it fails with "AMD-V is disabled in the BIOS. (VERR_SVM_DISABLED)." which is not true. Is it possible to fix cores detection by GUI? VM itself seems using all 4 cores.
Attachments (2)
Change History (5)
by , 7 years ago
by , 7 years ago
| Attachment: | VBox.log_4.0.8 added |
|---|
comment:1 by , 7 years ago
If you have a significant slowdown of guest VM (and the more cores you set - slower it is) - you should try to disable software, which may also use virtualization. In my case it's a sandbox of Avast antivirus: turn off via settings - compatibility - unchecking some checkboxes will help.
comment:2 by , 7 years ago
Are you running VirtualBox 4.0.8? From 2011? 7 years ago? How about updating first to something that's more... today?
As of today, the current version is 5.2.20. Please update first and see if the error is still there.
comment:3 by , 5 years ago
| Resolution: | → obsolete |
|---|---|
| Status: | new → closed |
Please reopen if still an issue with a recent VirtualBox release.
Error of 4.0.8 version