MacBook Pro keeps freezing, could Google Update be the cause?
These misbehaviours seem to come from a Google software update agent.

If this command:

launchctl list | grep google


tells:

-       0       com.google.keystone.user.agent


Then you may temporarily stop this agent with:

cd ~/Library/LaunchAgents
launchctl unload -S aqua com.google.keystone.agent.plist


On the system (where I do have regular crashes since the installation
of this agent: Snow Leopard) I noticed that this plist is starting an executable located here:

~/Library/Google/GoogleSoftwareUpdate/GoogleSoftwareUpdate.bundle/Contents/Resources/GoogleSoftwareUpdateAgent.app/Contents/MacOS/GoogleSoftwareUpdateAgent


which is a universal binary dating from May 2012:

file GoogleSoftwareUpdateAgent 
GoogleSoftwareUpdateAgent: Mach-O universal binary with 2 architectures
GoogleSoftwareUpdateAgent (for architecture i386):      Mach-O executable i386
GoogleSoftwareUpdateAgent (for architecture ppc):       Mach-O executable ppc


Hence I'm tempted to conclude that this agent is using obsolete code
and should be removed.

I removed this agent so as not to see it again on my next session with:

cd ~/Library/LaunchAgents
chmod 0 com.google.keystone.agent.plist


Tested with a new session. I have no more
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