[zeromq-dev] random crashs and double disconnect events

[Francis Le Bourse]

Hi,

I have observed random crashs in zeromq, for example in mailbox::recv() 
at assert(ok), and double disconnect sequences on servers when 
monitoring is active
     - event_accepted(fd, addr)
     - event_disconnected(fd, addr)
     - a second event_disconnectd(same fd, addr) sometimes later.

The attached test programs exhibits the issue after a few minutes. The 
most frequent error is the double disconnect but another random crash 
may occur.
Start:
     ./tserver
     ./tclient

Tested on Centos 6.5 and 6.6, zeromq-3.2.4, czmq-2.0.3

Cheers,
Francis

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