Opened 17 years ago

Closed 17 years ago

Last modified 17 years ago

#3 closed defect (fixed)

Grsec patched kernel: 100% CPU with no boot (possible freeze of the virtual machine)

Reported by: luca.greco@… Owned by: umoeller
Component: other Version: VirtualBox 1.3.2
Keywords: linux grsec Cc:
Guest type: other Host type: other


With a linux kernel grsecurity-patched, Virtual Box uncompress correctly the kernel but seems to freeze on booting.

I'm attaching a screenshot of the freeze vbox instance and the grsec-patched kernel's debian package.

Attachments (1)

linux-grsec-freeze.png (32.7 KB ) - added by luca.greco@… 17 years ago.
screenshot of the freezed vbox.

Download all attachments as: .zip

Change History (10)

by luca.greco@…, 17 years ago

Attachment: linux-grsec-freeze.png added

screenshot of the freezed vbox.

comment:1 by luca.greco@…, 17 years ago

The debian package of the grsec-patched linux kernel is too big for a trac attachment, so you can download it from:

comment:2 by umoeller, 17 years ago

Owner: set to umoeller
Status: newassigned

We have reproduced the problem and are investigating what's going on.

comment:3 by tex, 17 years ago

Similar Problems here. Host is Debian etch, Guest ist Debian etch as well. The Guest boots until "init" is called, then the VM consumes 100% CPU and nothing else happens.

comment:4 by Michael Thayer, 17 years ago

Is the source of the grsec patched kernel package available? And does the problem still occur?

comment:5 by Michael Thayer, 17 years ago

Regarding the Debian Etch problem - which kernel are you using in the guest (package name and version and "uname -r" on the command line)?

comment:6 by Sander van Leeuwen, 17 years ago

Devil-Linux 1.2.12 - latest Kernel 2.4.34 has GRSec extensions as well. Crashes during boot.

comment:7 by Sander van Leeuwen, 17 years ago

I've just fixed the Grsec problem with the 2.4.34 kernel. Presumably 2.6 will also work, but I can't check so easily here.

comment:8 by Frank Mehnert, 17 years ago

Resolution: fixed
Status: assignedclosed

Checked VBox on 2.6.20+grsec kernel. Works (CONFIG_PAX_MPROTECT must be off for VBox binaries!)

comment:9 by Frank Mehnert, 17 years ago

Probably closed too early. I meant a grsec-patched kernel at host. Please reopen if problem still persists.

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