[Labs-l] [Labs-announce] IMPORTANT: Security reboots everywhere tomorrow

[Andrew Bogott]

Good morning!

In order to plug a newly-revealed security hole, we need to upgrade 
kernels everywhere and reboot everything.  I'll be doing this for all 
instances and VM hosts tomorrow, 2017-06-21, beginning at 14:00UTC (aka 
7AM in San Francisco).

Project admins should expect instances to be shut down for 10-15 minutes 
and then restarted at some point tomorrow.  I don't expect the process 
to take absolutely all day, but it might.  If you have an instance that 
is a special case and you need it to be restarted during a more specific 
window, please respond to me directly with details about what you need 
and we'll try to make it happen.

These reboots should have minimal impact on things running in Tools, 
although it's always good to keep an eye out -- some tools are unable to 
recover from a shift between nodes and need a manual restart.

Sorry for the inconvenience!

-Andrew



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