Schedule for Monday's FESCo Meeting (2012-06-18)

Michal Schmidt mschmidt at
Tue Jun 19 08:37:23 UTC 2012

On 06/18/2012 10:53 PM, Lennart Poettering wrote:
> Well, even if Mozilla "fixed" that, such a solution wouldn't work for OS
> updates, already due to privilege reasons. i.e. "pre-staging" changes as
> root which are applied when a user does something simply cannot work if
> you care about security or supporting multi-user systems.

It's not trivial, but in theory the updates could be made to work in an 
RCU-like fashion:
Think of running Firefox processes as RCU read-side sections. The 
processes that are already running before the update keep seeing the old 
files. Newly started processes would see the new files. The RCU grace 
period elapses when all the previously running processes quit. At that 
point the old files can be deleted.
As a bonus a notification would nag the users to restart their Firefox 
processes. After some timeout the processes would be killed by force.


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