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Date:   Mon, 23 Apr 2018 14:32:50 +0800
From:   kernel test robot <xiaolong.ye@...el.com>
To:     John Fastabend <john.fastabend@...il.com>
Cc:     ast@...nel.org, daniel@...earbox.net, netdev@...r.kernel.org,
        davem@...emloft.net, lkp@...org
Subject: [lkp-robot] [bpf]  4f7b25baf0: kernel_selftests.bpf.test_maps.fail


FYI, we noticed the following commit (built with gcc-7):

commit: 4f7b25baf0cefa88aa267e8ff60150c4ac1479ef ("bpf: sockmap, refactor sockmap routines to work with hashmap")
url: https://github.com/0day-ci/linux/commits/John-Fastabend/bpf-sockmap-free-memory-on-sock-close-with-cork-data/20180401-230416
base: https://git.kernel.org/cgit/linux/kernel/git/bpf/bpf-next.git master

in testcase: kernel_selftests
with following parameters:

	group: kselftests-00

test-description: The kernel contains a set of "self tests" under the tools/testing/selftests/ directory. These are intended to be small unit tests to exercise individual code paths in the kernel.
test-url: https://www.kernel.org/doc/Documentation/kselftest.txt


on test machine: qemu-system-x86_64 -enable-kvm -cpu host -smp 4 -m 5G

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):


selftests: test_maps
========================================
Failed allowed duplicate programs in update ANY sockmap 0 '4:8'
not ok 1..3 selftests:  test_maps [FAIL]



To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email



Thanks,
Xiaolong

View attachment "config-4.16.0-rc6-01560-g4f7b25b" of type "text/plain" (166089 bytes)

View attachment "job-script" of type "text/plain" (5772 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (46948 bytes)

View attachment "kernel_selftests" of type "text/plain" (79210 bytes)

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