Virtual machines with ACPI enabled keep freezing temporarily on a MacBook

[jtayl22]

Virtual machines with ACPI enabled keep freezing temporarily on a MacBook

http://www.virtualbox.org/ticket/2836


Host:

# sudo dmidecode -s system-product-name
MacBookPro5,2

# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=9.10
DISTRIB_CODENAME=karmic
DISTRIB_DESCRIPTION="Ubuntu 9.10"

# uname -a
Linux mac 2.6.31-20-generic #57-Ubuntu SMP Mon Feb 8 09:02:26 UTC 2010 x86_64 GNU/Linux

VirtualBox 3.1.4

Guest:
Microsoft Windows XP Service Pack 3

Before:

# time cat /proc/acpi/battery/*/*

real 0m18.987s
user 0m0.000s
sys 0m0.020s

Reference:
http://bugzilla.kernel.org/show_bug.cgi?id=8246

Change:

# diff /etc/grub.d/10_linux /etc/grub.d/__10_linux.ORIG
71c71
< linux ${rel_dirname}/${basename} root=${linux_root_device_thisversion} acpi=rsdp_forced ro $2
---
> linux ${rel_dirname}/${basename} root=${linux_root_device_thisversion} ro $2

# update-grub

# reboot


After:

# time cat /proc/acpi/battery/*/*

real 0m0.068s
user 0m0.000s
sys 0m0.010s

Now VirtualBox Guest is well behaved.

:!: :( #-o

Darn, VirtualBox was fine until I posted the "solved" message, and then it mocks me by falling back into the unusable behavior.

root@mac:~# time cat /proc/acpi/battery/*/*

real 0m33.552s
user 0m0.000s
sys 0m0.090s

[jtayl22]

.

[jtayl22]

Fixed in VirtualBox 3.1.6.