Hi all, When I run Icehouse code, I encountered a strange problem. The nova-compute service becomes stuck, when I boot instances. I report this bug in https://bugs.launchpad.net/nova/+bug/1313477.
After thinking several days, I feel I know its root cause. This bug should be a deadlock problem cause by pipe fd leaking. I draw a diagram to illustrate this problem. https://docs.google.com/drawings/d/1pItX9urLd6fmjws3BVovXQvRg_qMdTHS-0JhYfSkkVc/pub?w=960&h=720 However, I have not find a very good solution to prevent this deadlock. This problem is related with Python runtime, libguestfs, and eventlet. The situation is a little complicated. Is there any expert who can help me to look for a solution? I will appreciate for your help! -- Qin Zhao
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