VirtualBox

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Ticket Resolution Summary Owner Reporter
#11285 obsolete Cursor defased and display erros in RHEL 5.5 GOT
Description

I'm experiencing problems with the interface on a virtual machine that runs RHEL 5.5 64bit with the linux kernel 2.6.18-194.el5. With high resolution configuration (over 1024x768px) the VM presents the following bugs: [*] Cursor position is some pixels defased (For example: I click on System menu, but it do it over Web Browser icon) [*] Some components of the interface disapear until you pass mouse over them.

I have tested it with Windows XP and Windows 7 Professional as host, with and without guest additions installed.

Technical information: Host:

  • 4Gb RAM (3,25 available)
  • 128Mb Video
  • OS Windows XP Professional 32 bit
  • VirtualBox 4.2.4r81684

Guest:

  • 1024Mb RAM
  • 32Mb Video
  • 1 CPU
  • OS RedHat Enterprise Linux 5.5 64bit (kernel 2.6.18-197.el5)
#14850 invalid Memory Leak on 5.0.10 r104061 GRRivLar
Description

I've created a linux VM (Ubuntu 15) in 5.0.8 it had no problems. Upgraded to 5.0.10 and all of a sudden this particular VM started to eat out all RAM (using up to 90% out of 16GB host). If I go back to 5.0.8 the memory leak won't act up. I've checked out the problem (which is been reported several times before) and discarded driver problems, update problems, I/O problems and "ReadyBoost" problems. It's been narrowed down to VirtualBox, this particular VM, and it can be reproduced if in this VM you run any process that make heavy I/O use (creating a database or encrypting a drive), that will eat the RAM away.

CONSIDERATION: This VM is HEAVILY encrypted as is being tested for data encryption performance. It simulates RAID0 on four different VDI files, each with a different VBox password, and is using internal linux file encryption, this guarantees heavy I/O disk usage.

Host: Windows 8.1 64 bit, 16GB RAM, Intel i5 Guest: Lubuntu 15.10 32 bit, 8GB RAM, 1 CPU Accel: VT-x/AMD-V, Nested paging, PAE/NX, KVM paravirtualization VRAM: 8MB Remote: disabled V-Cap: disabled Storage: 4 VDI files AES-XTS256-PLAIN64 encryption Sound: host directsound ICH AC97 Network: NAT IntelPro/1000MT USB: OHCI, EHCI Shared folders Bidirectional Clipboard

#15866 fixed USB Thumb drives extremely slow. Gregg Haines
Description

Since upgrading to 5.1.4, USB Thumb drives are extremely slow and sometimes crash Win7 guest. Tried both a 32GB as well as an 8GB, both formatted FAT32. Have not tried any other USB devices. Both Extension Pack and Guest Additions installed for 5.1.4.

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