VirtualBox

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Ticket Resolution Summary Owner Reporter
#8724 obsolete 100% host CPU when enabling Serial Port with Host Pipe mode Richard Thomas
Description

VirtualBox uses 100% of one core of my CPU on my dual-core laptop when I launch a guest OS with an enabled Serial Port. Specifically Port Number: COM1 Port Mode: Host Pipe Create Pipe: (Unchecked) Port/File Path: COM1

Changing Port Mode from Host Pipe to Host Device reduces idle CPU usage to less than 5%. The HELP does not explain the difference between what a Host Pipe is and what a Host Device is. Should the Host Pipe mode really use 100% of a core when guest is idle?

OS details: Windows XP Pro Host 32-bit (fully updated), 3Gb RAM, Dual-Core Intel Core2Duo 2.4GHz. Windows XP Pro Guest 32-bit (fully updated)

#14741 invalid 128 GB flash drive is not identidied alex5908
Description

Hi there, I've installed Virtualbox, latest addition with Win 7 Ultimate and it does not identify 128 gb flash drive. There is no problem with 8 gb flash. What shall be done to correct this?

#8604 fixed 128 MB display adapter causes EFI crash Jarrod Petz
Description

Hi,

Please forgive me if this is in the wrong area.

When making a new virtual machine in 4.0.4. If I set the display memory to 128MB and have EFI enabled it causes a crash on starting the VM. I suspect it has to do with EFI software as if I turn EFI off and go back to a traditional BIOS then everything is fine. Also if I reduce the display memory to 64MB it is also fine.

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