I was looking at child process data via redash query - https://sql.telemetry.mozilla.org/queries/67352/source?p_process_name_undefined=rdd We have data coming in for 'browser' and 'tab' but not 'rdd' - https://searchfox.org/mozilla-central/source/xpcom/build/GeckoProcessTypes.h At first I was thinking this was a side effect of turning CIG on for the RDD, work tritter did back in august. But that mitigation was applied delayed - https://searchfox.org/mozilla-central/source/security/sandbox/win/src/sandboxbroker/sandboxBroker.cpp#860 Which has me wondering if something might be broken, as I would expect some injections to get in prior to the sandbox applying this change. Also, CIG only works on Win10 so this looks more like a bug. Lets investigate this and confirm telemetry is working correctly from the rdd. I d really like to see what impact CIG has on this but right now I don't trust the data.
Bug 1606898 Comment 0 Edit History
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I was looking at child process data via redash query - https://sql.telemetry.mozilla.org/queries/67352/source?p_process_name_undefined=rdd We have data coming in for 'browser' and 'tab' but not 'rdd' - https://searchfox.org/mozilla-central/source/xpcom/build/GeckoProcessTypes.h At first I was thinking this was a side effect of turning CIG on for the RDD, work tritter did back in august. But that mitigation was applied delayed - https://searchfox.org/mozilla-central/source/security/sandbox/win/src/sandboxbroker/sandboxBroker.cpp#860 Which has me wondering if something might be broken, as I would expect some injections to get in prior to the sandbox applying this change. Also, CIG only works on Win10 so this is looking more and more like a collection bug. Lets investigate this and confirm telemetry is working correctly from the rdd. I'd really like to see what impact CIG has on this but right now I don't trust the data.