From time to time my macbook was behaving strangely, starting with network DNS issues and ending with freeze. The only way to solve this was to do a hard reboot.
It did not happen so often and it was a bit difficult to spot the problem from console so last two times I had this situation, I saved the logs for further reference.
By comparing both logs (one from February and one from June), I discovered 2 similar messages at the begining of both events:
2/24/14 4:18:37.000 PM kernel[0] CODE SIGNING: cs_invalid_page(0x1000): p=26810[GoogleSoftwareUp] final status 0x0, allow (remove VALID)ing page
6/9/14 8:54:21.000 PM kernel[0] CODE SIGNING: cs_invalid_page(0x1000): p=4073[GoogleSoftwareUp] final status 0x0, allowing (remove VALID) page
Having this at hand, allowed me to have something to search for and I discovered a website (link at the end of this article) which explains a bit why. So yes, apparently GoogleSoftwareUp is the guilty one. I am not using Crucial M4 SSD but the sympthoms are the same.
Solution:
If you have Crucial M4 SSD (again, was not my case), do firmware update from http://www.crucial.com/support/firmware.aspx but the most important is to uninstall Google Software Update:
How to uninstall Google Software Update for a specific user:
florians-MacBook-Pro:~ florian$ ~/Library/Google/GoogleSoftwareUpdate/GoogleSoftwareUpdate.bundle/Contents/Resources/GoogleSoftwareUpdateAgent.app/Contents/Resources/install.py --uninstall
How to uninstall Google Software Update for the whole system (needs root access):
florians-MacBook-Pro:~ florian$ sudo /Library/Google/GoogleSoftwareUpdate/GoogleSoftwareUpdate.bundle/Contents/Resources/GoogleSoftwareUpdateAgent.app/Contents/Resources/install.py --uninstall
How to disable Google Software Update:
defaults write com.google.Keystone.Agent checkInterval 0
By the way, if you want to prevent Google to reinstall this, you can do:
User specific:
florians-MacBook-Pro:~ florian$ [color=green]ls -lad ~/Library/Google/GoogleSoftwareUpdate[/color] drwxr-xr-x@ 5 florian nx 170 Dec 24 2010 /Users/florian/Library/Google/GoogleSoftwareUpdate florians-MacBook-Pro:~ florian$ [color=green]rm -rf ~/Library/Google/GoogleSoftwareUpdate[/color] florians-MacBook-Pro:~ florian$ [color=green]touch ~/Library/Google/GoogleSoftwareUpdate[/color] florians-MacBook-Pro:~ florian$ [color=green]sudo chown root ~/Library/Google/GoogleSoftwareUpdate[/color] florians-MacBook-Pro:~ florian$ [color=green]sudo chmod 644 ~/Library/Google/GoogleSoftwareUpdate[/color] florians-MacBook-Pro:~ florian$ [color=green]ls -lad ~/Library/Google/GoogleSoftwareUpdate[/color] -rw-r--r-- 1 root nx 0 Jun 9 22:16 /Users/florian/Library/Google/GoogleSoftwareUpdate
System wide:
florians-MacBook-Pro:~ florian$ [color=green]ls -lad /Library/Google/GoogleSoftwareUpdate[/color] drwxr-xr-x 3 root wheel 102 Jun 9 22:05 /Library/Google/GoogleSoftwareUpdate florians-MacBook-Pro:~ florian$ [color=green]sudo rm -rf /Library/Google/GoogleSoftwareUpdate[/color] florians-MacBook-Pro:~ florian$ [color=green]sudo touch /Library/Google/GoogleSoftwareUpdate[/color] florians-MacBook-Pro:~ florian$ [color=green]sudo chown root /Library/Google/GoogleSoftwareUpdate[/color] florians-MacBook-Pro:~ florian$ [color=green]sudo chmod 644 /Library/Google/GoogleSoftwareUpdate[/color] florians-MacBook-Pro:~ florian$ [color=green]ls -lad /Library/Google/GoogleSoftwareUpdate[/color] -rw-r--r-- 1 root wheel 0 Jun 9 22:18 /Library/Google/GoogleSoftwareUpdate
Sources for this article:
GoogleSoftwareUp hangs the mac: https://www.jimcarson.com/2012/googlesoftwareup-clearing-cs_valid-and-mac-freezes/
What is and how to remove Google Software update: https://support.google.com/installer/answer/100386?hl=en
