observers of OBSERVER_TOPIC_IDLE_DAILY can access the disk. This was found by trying to add an assert: https://tbpl.mozilla.org/?tree=Try&rev=291bc14461c2 We could change the observers, but since we want to speed up shutdown anyway we should probably just avoid sending OBSERVER_TOPIC_IDLE_DAILY during shutdown. Quoting taras recent email to dev-platform: "Notifications not useful during shutdown should be culled".

you are duplicating efforts with Mike (see bug 732368), please coordinate for a coalesced patch

Comment on attachment 603247 [details] [diff] [review] OBSERVER_TOPIC_IDLE_DAILY can be sent during shutdown [Moved to bug 732368] Mike, would you mind commenting on this patch? I looked at yours and don't understand why you are doing the extra work. As part of the exit(0) work we will be making the profile-* messages the ones we shutdown on and not even sending the xpcom messages. I did a combined try run with this patch and the assert that found the issue (for me at lest) and it works: https://tbpl.mozilla.org/?tree=Try&rev=fda958936a08

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