> - when the next gettimeofday happens, we can check the sequence number
> and the old gettimeofday, and verify that we get monotonic behaviour in
> the absense of explicit date setting. This allows us to handle small
> problems gracefully ("return the old time + 1 ns" to make it
> monotonic even when we screw up), _and_ it will also act as a big clue
> for us that we should try to synchronize - so that we basically never
> need to worry about "should I check the clocks" (where "basically
> never" may be "we check the clocks every minute or so if nothing else
> happens")
Unfortunately, this means "bye bye vsyscalls for gettimeofday".
Pavel
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