2018-11-01 18:19:56

by Jakub Kicinski

[permalink] [raw]
Subject: Re: [LKP] [tools] 6534770d6f: kernel_selftests.bpf.test_lwt_seg6local.fail

On Thu, 1 Nov 2018 11:26:44 +0800, kernel test robot wrote:
> FYI, we noticed the following commit (built with gcc-7):
>
> commit: 6534770d6f176093b50896961107b2d545ef38f0 ("tools: bpf: fix BTF code added twice to different trees")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

That's a fix to a merge commit, perhaps something before broke it?

> 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: 80 threads Skylake with 64G memory
>
> caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
>
>
> commit:
> 6b431d50d2a8acd1c418b998b856a055252ebc3a
> 6534770d6f176093b50896961107b2d545ef38f0
>
> 6b431d50d2a8acd1 6534770d6f176093b508969611
> ---------------- --------------------------
> fail:runs %reproduction fail:runs
> | | |
> 443:8 14689% 1618:8 dmesg.timestamp:last
> :8 100% 8:8 kernel_selftests.bpf.test_lwt_seg6local.fail
> :8 100% 8:8 kernel_selftests.bpf.test_lwt_seg6local.sh.fail
>
>
>
>
> To reproduce:
>
> git clone https://github.com/intel/lkp-tests.git
> cd lkp-tests
> bin/lkp install job.yaml # job file is attached in this email
> bin/lkp run job.yaml
>
>
>
> Thanks,
> Rong Chen