I was wrong that this happens during startup of Firefox. Nothing in the new logs shows output for that. Actually it's really all inside the cleanup steps of mozprocess. In all the working cases the `cleanup job io port` line can be seen three times after the `after cleanup` line. That has to come from `__del__`. In the failing case it is getting output only twice. To know which of those invocations is missing I pushed one more try build: https://treeherder.mozilla.org/#/jobs?repo=try&revision=9292a361d4b13954b0a435f361f02a76ab0a6e02
Bug 1521447 Comment 14 Edit History
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I was wrong that this happens during startup of Firefox. Nothing in the new logs shows output for that. Actually it's really all inside the cleanup steps of mozprocess. In all the working cases the `cleanup job io port` line can be seen three times after the `after cleanup` line. That has to come from `__del__`. In the failing case it is getting output only twice. To know which of those invocations is missing I pushed one more try build: https://treeherder.mozilla.org/#/jobs?repo=try&revision=19e412c6c8ff6a8647c659d657fc9908196477aa
I was wrong that this happens during startup of Firefox. Nothing in the new logs shows output for that. Actually it's really all inside the cleanup steps of mozprocess. In all the working cases the `cleanup job io port` line can be seen three times after the `after cleanup` line. That has to come from `__del__`. In the failing case it is getting output only twice. To know which of those invocations is missing I pushed one more try build: https://treeherder.mozilla.org/#/jobs?repo=try&revision=837104880c51288a7e2a8e82fc0c9867c411d460