VirtualBox

Changes between Initial Version and Version 5 of Ticket #9941


Ignore:
Timestamp:
02/28/12 16:26:10 (2 years ago)
Author:
michaln
Comment:

User crissi provided files needed to reproduce the problem. That was very helpful. Confirmed the hang here with PXE over NAT.

The actual problem is completely unrelated to networking. It's greatly contributed to gPXE's creative use of big real mode, A20 control, and similar horrors.

From what I can tell, gPXE sets up big real mode which doesn't work quite right in VirtualBox only on Intel CPUs with old VT-x implementations with no unrestricted execution support (when VT-x is used). I haven't tried but doubt that AMD-V is affected.

I changed the ticket to reflect the situation. The guest type is in fact not Linux here, it's gPXE doing awful things to the poor little CPU.

Legend:

Unmodified
Added
Removed
Modified
  • Ticket #9941

    • Property Keywords vt-x added; vt-x/amd-v removed
    • Property Component changed from network to VMM/HWACCM
    • Property Guest type changed from Linux to other

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