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SubjectRe: [lkp-robot] [vti6] b4331a6818: kernel_selftests.net.pmtu.sh.fail
On Tue, 5 Jun 2018 15:09:27 +0800
kernel test robot <xiaolong.ye@intel.com> wrote:

> FYI, we noticed the following commit (built with gcc-7):
>
> commit: b4331a681822b420511b3258f1c3db35001fde48 ("vti6: Change minimum MTU to IPV4_MIN_MTU, vti6 can carry IPv4 too")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
>
> [...]
>
> caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
>
>
> selftests: pmtu.sh
> ========================================
> TEST: vti6: PMTU exceptions [ OK ]
> TEST: vti4: PMTU exceptions [ OK ]
> TEST: vti4: default MTU assignment [ OK ]
> TEST: vti6: default MTU assignment [ OK ]
> TEST: vti4: MTU setting on link creation [ OK ]
> TEST: vti6: MTU setting on link creation [FAIL]
> vti6 tunnel created with invalid MTU 1279

This is solved by net-next.git commit 5a643c861d0f ("selftests: pmtu:
Minimum MTU for vti6 is 68"), which should get merged into net.git soon.

--
Stefano

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