[CRIU] tcp-resume resume stuck, iptable rules not removed

[Robert Reinecke]

Hey guys,

I used criu for my master thesis and now I'm trying to reproduce the
results for a paper and I'm stuck with getting criu to run properly
again.
Especially tcp-resume is of importance for me, thus I always first try
to run the tcp test (from the test folder and additionally my own
tests) to make sure everything is running.
Unfortunately, it won't work for me - hope you guys can give me a
pointer where to search for the error.

-> Dump and resume seems to work at a first glance (log files appended) but:
1) Firewall rules are not removed properly after resume
2) After resume theirs no observable tcp traffic on the connected
interface (iptables rules removed by hand)
3) Criu with the -d flag should run as daemon but seems to be stuck
4) Test from the zdtm streaming/socket-tcp seems to work though

I tested criu version 1.2 - 1.3-rc2 and the following distributions
and kernels (custom kernel compile)
Dist: Debian, Ubuntu
(as KVM image)
Linux Kernel: 3.12.23, 3.15.3


Probably their is just something wrong with my environment but I would
be very grateful if you could give me some advice.

By the way thanks for the great project!

Regards
Robert.
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