[Bug 1087741] New: signals 1, 17 and 27 not passed to container using docker attach --sig-proxy

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1087741

            Bug ID: 1087741
           Summary: signals 1, 17 and 27 not passed to container using
                    docker attach --sig-proxy
           Product: Fedora
           Version: 20
         Component: docker-io
          Assignee: lsm5(a)redhat.com
          Reporter: ldoktor(a)redhat.com
        QA Contact: extras-qa(a)fedoraproject.org
                CC: admiller(a)redhat.com, golang(a)lists.fedoraproject.org,
                    lsm5(a)redhat.com, mattdm(a)redhat.com,
                    mgoldman(a)redhat.com, skottler(a)redhat.com,
                    vbatts(a)redhat.com



Description of problem:
When I send signals 1, 17, 27 to the `docker attach` process, which is running
with --sig-proxy=true, it's not forwarded. Other signals are...

Version-Release number of selected component (if applicable):
docker-io-0.9.1-1.fc21.x86_64

How reproducible:
always

Steps to Reproduce:
1. docker -D run --detach=true --tty=false --sig-proxy=true --name test_BnHj
localhost:5000/ldoktor/fedora:latest bash -c 'echo "STARTED"; for NUM in
`seq 1
64`; do trap "echo Received $NUM, ignoring..." $NUM; done; while :; do sleep 1;
done'
2. docker -D attach --sig-proxy=true test_BnHj
3. ps ax |grep docker
4. kill -1 $PID

Actual results:
(nothing)

Expected results:
Received 1, ignoring...

Additional info:
When you send any other signal (apart from 19, 9 and the mentioned ones) it
works fine.

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[Bug 1087741] signals 1, 17 and 27 not passed to container using docker attach --sig-proxy

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1087741



--- Comment #1 from Lukas Doktor <ldoktor(a)redhat.com&gt; ---
OK, it's not always, but most of the time... (I successfully received the
SIGHUP once)

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[Bug 1087741] signals 1, 17 and 27 not passed to container using docker attach --sig-proxy

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1087741

Lukas Doktor <ldoktor(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |CLOSED
         Resolution|---                         |NEXTRELEASE
        Last Closed|                            |2014-05-05 03:56:17



--- Comment #2 from Lukas Doktor <ldoktor(a)redhat.com&gt; ---
This works fine with docker-io-0.10.0-2.fc20.x86_64 and upstream
dc9c28f/0.10.0.

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