[Bug 1176302] New: /var/log/docker incorrectly asserts that kernel 2.6.32* "might be unstable running docker"

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1176302

            Bug ID: 1176302
           Summary: /var/log/docker incorrectly asserts that kernel
                    2.6.32* "might be unstable running docker"
           Product: Fedora EPEL
           Version: el6
         Component: docker-io
          Assignee: lsm5(a)redhat.com
          Reporter: afoxson(a)gmail.com
        QA Contact: extras-qa(a)fedoraproject.org
                CC: adimania(a)gmail.com, admiller(a)redhat.com,
                    golang(a)lists.fedoraproject.org, hushan.jia(a)gmail.com,
                    jchaloup(a)redhat.com, jperrin(a)centos.org,
                    lsm5(a)redhat.com, mattdm(a)redhat.com,
                    mgoldman(a)redhat.com, miminar(a)redhat.com, s(a)shk.io,
                    thrcka(a)redhat.com, vbatts(a)redhat.com



Description of problem:

The following warning appears in /var/log/docker:

"WARNING: You are running linux kernel version 2.6.32-504.1.3.el6.x86_64, which
might be unstable running docker. Please upgrade your kernel to 3.8.0."

Version-Release number of selected component (if applicable):

docker-io-1.3.2-2.el6.x86_64.rpm

How reproducible:

Consistently.

Steps to Reproduce:

1. Run docker in daemon mode.
2. Review /var/log/docker.

Actual results:

The aforementioned warning appears in /var/log/docker.

Expected results:

The aforementioned warning not appearing in /var/log/docker.

Additional info:

This warning is incorrect as per:

https://github.com/docker/docker/issues/407#issuecomment-43206662

which states:

"Kernels older than 3.8 aren't supported. That means technical support isn't
provided and you might run into unexpected behavior, even if it seems like it's
working. The only exception is the kernel provided by RHEL6 (2.6.32xxxxxx)
which was patched and improved to work properly with Docker."

It seems that an environment variable is available for this situation, as per:

https://github.com/shykes/docker-dev/commit/2c2a655da14f6de9353454673f2a1...

which states:

"set DOCKER_NOWARN_KERNEL_VERSION=1 to disable the warning for RHEL 6.5"

-- 
You are receiving this mail because:
You are on the CC list for the bug.

[Bug 1176302] /var/log/docker incorrectly asserts that kernel 2.6.32* "might be unstable running docker"

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1176302

Daniel Walsh <dwalsh(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
                 CC|                            |dwalsh(a)redhat.com



--- Comment #1 from Daniel Walsh <dwalsh(a)redhat.com&gt; ---
Lokesh can you add this environment variable to /etc/sysconfig/docker for
rhel6.5

-- 
You are receiving this mail because:
You are on the CC list for the bug.

[Bug 1176302] /var/log/docker incorrectly asserts that kernel 2.6.32* "might be unstable running docker"

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1176302



--- Comment #3 from Lokesh Mandvekar <lsm5(a)redhat.com&gt; ---
I've added this to dist-git
http://pkgs.fedoraproject.org/cgit/docker-io.git/commit/?h=el6&id=727...

fedpkg build seems to wait forever though :| . The build should be listed here:
http://koji.fedoraproject.org/koji/packageinfo?packageID=17053 . I'll give it
another try if I still can't find it there.

-- 
You are receiving this mail because:
You are on the CC list for the bug.

[Bug 1176302] /var/log/docker incorrectly asserts that kernel 2.6.32* "might be unstable running docker"

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1176302



--- Comment #4 from Daniel Walsh <dwalsh(a)redhat.com&gt; ---
Lokesh can we close this as fixed?

-- 
You are receiving this mail because:
You are on the CC list for the bug.

[Bug 1176302] /var/log/docker incorrectly asserts that kernel 2.6.32* "might be unstable running docker"

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1176302

Daniel Walsh <dwalsh(a)redhat.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |CLOSED
         Resolution|---                         |CURRENTRELEASE
        Last Closed|                            |2015-07-15 17:24:04



-- 
You are receiving this mail because:
You are on the CC list for the bug.