More info on this: A co-worker with an Intel Core i7 did not see this issue. I have a Core 2 Duo and was affected. My coworker also has a Core 2 Duo and saw the same issue.
So this must be something related to Core 2 Duos. I've tried tweaking various settings but haven't seen any improvement yet. Best, Mitchell On Thu, Jul 21, 2011 at 12:59 PM, Mitchell Hashimoto < [email protected]> wrote: > Hello, > > I've just cleanly installed Mac OS X 10.7.0 and VirtualBox 4.1. I've been > creating new Ubuntu virtual machines and have been seeing issues with my > kernel_task (pid 0) taking 100% CPU, making the rest of the system > unresponsive for periods of time. > > I've slowly narrowed this down to a single reproducible case. It seems that > whenever the "Unpacking" step is reached in an apt-get install, then > kernel_task goes to 100%. I don't know much about virtualization internals > but I would suspect that something is wrong with disk I/O reads. > > Has anyone seen this yet? I can reproduce it consistently, and this doesn't > occur in 10.6.0. > > Best, > Mitchell >
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