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Date:   Mon, 7 Nov 2016 10:42:22 +0800
From:   kernel test robot <xiaolong.ye@...el.com>
To:     David Lebrun <david.lebrun@...ouvain.be>
Cc:     netdev@...r.kernel.org, David Lebrun <david.lebrun@...ouvain.be>,
        lkp@...org
Subject: [lkp] [ipv6]  3e1ad8cb8a:
 kmsg.IPv6:Attempt_to_unregister_permanent_protocol


FYI, we noticed the following commit:

https://github.com/0day-ci/linux David-Lebrun/net-add-support-for-IPv6-Segment-Routing/20161104-184052
commit 3e1ad8cb8a222ca704cd38b97ba68122d4e106f2 ("ipv6: sr: add support for SRH encapsulation and injection with lwtunnels")

in testcase: fwq
with following parameters:

	nr_task: 100%
	samples: 100000ss
	iterations: 18x
	cpufreq_governor: performance




on test machine: 8 threads Intel(R) Atom(TM) CPU  C2750  @ 2.40GHz with 16G memory

caused below changes:


[    9.511484] Initializing XFRM netlink socket
[    9.516012] NET: Registered protocol family 10
[    9.536828] IPv6: Attempt to unregister permanent protocol 6
[    9.549824] IPv6: Attempt to unregister permanent protocol 136
[    9.558797] IPv6: Attempt to unregister permanent protocol 17
[    9.671824] NET: Unregistered protocol family 10
[    9.679917] NET: Registered protocol family 17



To reproduce:

        git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
        cd lkp-tests
        bin/lkp install job.yaml  # job file is attached in this email
        bin/lkp run     job.yaml



Thanks,
Xiaolong

View attachment "config-4.9.0-rc3-00667-g3e1ad8c" of type "text/plain" (153835 bytes)

View attachment "job-script" of type "text/plain" (4108 bytes)

Download attachment "dmesg.xz" of type "application/octet-stream" (14012 bytes)

View attachment "fwq" of type "text/plain" (633 bytes)

View attachment "job.yaml" of type "text/plain" (3301 bytes)

View attachment "reproduce" of type "text/plain" (132 bytes)

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