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Very frequently getting zombie processes from killed Docker containers #7600

@vincentwoo

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@vincentwoo

I am running Ubuntu 14.04 with kernel version:

Linux execute 3.13.0-34-generic #60-Ubuntu SMP Wed Aug 13 15:45:27 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

My kernel has the patch described here as fixing the longstanding zombie issue with Docker: http://stackoverflow.com/a/22600096/638592

My containers all basically are bash scripts that run some sort of TTY process (like ruby or python shell, for instance). I have no problems killing the container, but these processes stick around. This happens very reliably, but I'm not sure how to make a more minimally reproducing test case.

Can anyone advise me on how to get to the bottom of this?

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