From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Borkmann <daniel@iogearbox.net>
Subject: Re: [lkp-robot] [bpf] 4f7b25baf0: kernel_selftests.bpf.test_maps.fail
Date: Mon, 23 Apr 2018 11:41:34 +0200
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References: <20180423063250.GO5563@yexl-desktop>
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Cc: ast@kernel.org, netdev@vger.kernel.org, davem@davemloft.net,
        lkp@01.org
To: kernel test robot <xiaolong.ye@intel.com>,
        John Fastabend <john.fastabend@gmail.com>
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On 04/23/2018 08:32 AM, kernel test robot wrote:
> 
> 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

(fyi, refers to https://patchwork.ozlabs.org/patch/894017/ which is not in tree.)

> 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
>