Ouch. Yeah, that's a pretty brutal and very classic Heisenbug. While it's not quite universal, I do usually assume that a Heisenbug involves concurrency in *some* fashion: that's probably true 95% of the time.
I confess to being morbidly curious what they were doing to allow level 2 re-entrancy but not level 3 -- that smells like somebody hacked something horribly...
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Date: 2013-10-29 06:56 pm (UTC)I confess to being morbidly curious what they were doing to allow level 2 re-entrancy but not level 3 -- that smells like somebody hacked something horribly...