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Ticket Resolution Summary Owner Reporter
#11945 obsolete Suddenly CPU usage reach 100% Lorenzo_
Description

My Host is Windows 7 64 bit. I have 2 guests:

  • Windows XP sp3
  • Windows 7 32 bit

I used them for months without any problem. 2 months ago those guests began having a problem: sometimes after 10 minutes, sometimes after some hour, CPU reach 100% usage and never go down. Sometime on the W7 guest, sometime on the XP guest. When both are runnig, the problem appear on both vm almost simultaneously. I' ve tried a lot of solutions searching on the web, but nothing solved this. The problem appears when I use one of those VM and even when both are running. I tried:

  • to change antivirus (security essential > trend micro) (vm w7 and xp)
  • to remove antivirus (vm w7 and xp)
  • to scan guests and host with Combofix (vm w7 - nothing found - and xp: removed 3/4 dll)
  • to scan guests and host with Malwarebytes (vm w7 and xp) (nothing found)
  • to set video memory to 32, 64 and 128 MB (vm w7 and xp)
  • to move the W7 vm on an eSata HDD , then to an USB HDD (vm W7)
  • to remove nested paging (vm W7 and XP)
  • to install APIC (vm W7)
  • to change VirtualBox Version (4.2.10 > 4.2.12 > 4.2.14)

It seems that it has something to do with Network load:

  • once, disconnecting a Cisco VPN, the CPU load came back to normal values;
  • disabling the Network Device (from Machine > Devices > Network) end leaving the vm on Pause for some minute the CPU load came back to normal values; after this I can set the network device as it were before the problem without other issues. This works EVERY time.

I tried to work with bridge card and with NAT, but even this can't prevent the problem.

https://forums.virtualbox.org/viewtopic.php?f=2&t=56176

#17796 invalid Failed to open a session for the virtual machine Lori10
Description

Failed to open a session for the virtual machine Ubuntu lori.

The virtual machine 'Ubuntu lori' has terminated unexpectedly during startup with exit code -1073741819 (0xc0000005). More details may be available in 'C:\Users\lorand.marton\Desktop\Ubuntu lori\Logs\VBoxHardening.log'.

Result Code: E_FAIL (0x80004005) Component: MachineWrap Interface: IMachine {85cd948e-a71f-4289-281e-0ca7ad48cd89}

#9384 duplicate Ubuntu Installation problems Los
Description

I have continuos error problems while installing ubuntu 9.1 in Virtual Box.

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