Ticket #4969 (closed defect: duplicate)

Opened 10 years ago

Last modified 10 years ago

Linux 64bit guest on Windows 32bit host hangs on boot with 100% CPU

Reported by: andylong Owned by:
Component: other Version: VirtualBox 3.0.6
Keywords: guest boot freeze write protecting Cc:
Guest type: Linux Host type: Windows


My host machine is a Windows Vista Home Premium 32bit installation on a 64bit (Core2 Duo P8600 - with VT extensions) machine. My guest install is a Debian Linux 2.6.30-1 amd64 install (standard Debian kernel) but this bug can also be reproduced with a fresh new VM and the Ubuntu 9.04 Live CD for amd64.

Halfway through the guest kernel boot, specifically after this line: " Write protecting the kernel read-only data: 6708k " the guest machine freezes and keeps one of my host CPU's two cores at 100%. This never happened with 3.0.4; instead I have never managed to boot the guest since updating to 3.0.6.

I tried disabling all extensions and all the guest's peripherals I could disable, but everything was useless. Of course I could not disable using the CPU's virtualization extensions because they are necessary to run a 64bit guest on a 32bit host OS.

I have already confirmed that the amd64 architecture explicitly supports intel's x86-64.

Attached is the logfile for my test boot with the mentioned Ubuntu Live CD.


VBox.log Download (52.6 KB) - added by andylong 10 years ago.
Logfile for test boot with Ubuntu 9.04 amd64 Live CD iso

Change History

Changed 10 years ago by andylong

Logfile for test boot with Ubuntu 9.04 amd64 Live CD iso

comment:1 Changed 10 years ago by frank

  • Status changed from new to closed
  • Resolution set to duplicate

Duplicate of #4947.

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