id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
8267	Guest clock freezing intermittently on MacBook Pro	Mathieu Hofman		"I'm encountering issues identical to #2836 on my !MacBook Pro running MacOS X 10.6. The clock of my Windows 7 guest would freeze every now and then (about 30-60 seconds) for about 10 seconds, and then resume. The guest OS would not freeze itself and stay mostly responsive but anything related to time elapsing would get stuck, like the clock gadget, resource monitors and the most annoying, any kind of animations. Any solutions posted for similar problem does not seem to do anything (or much). A consequence of the problem is that the time will appear to run slow (I originally thought this was the problem and not an effect)

One way I managed to mitigate the symptoms was to disable animations in the OS. However a lot of applications still rely on the clock time running, and will appear stuck / frozen but are in fact mostly responsive to input.

Here is my configuration:[[BR]]
Hardware: !MacBook Pro 5,2 (Unibody 17"" mid-2009) Core 2 Duo 2.8 GHz, memory 8GB[[BR]]
Host OS: MacOS X Snow Leopard 10.6.6 running 64 bit kernel[[BR]]
Guest OS: Windows 7 64 bit, ACPI, SATA controller (vm info output attached)

I've tried the following:
 * Enable or disable HPET
 * Switch between Virtualized TSC or Use Real TSC
 * Disable the ACPI battery and AC adapter in the guest Windows device manager
 * Stop Guest Addition service.

Other things I've tried:
 * Disable host caching of the SATA controller

I also attached the log file of my last try that had HPET on, using real TSC, ACPI battery device disabled, Guest Additions not running.
"	defect	closed	VMM	VirtualBox 4.0.2	fixed	acpi clock macbook		other	other