linux-kernel - Re: [LKP] [net/ipv6] 4ed591c8ab: kernel_selftests.net.fib-onlink-tests.sh.fail

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Date:   Fri, 2 Nov 2018 21:53:38 -0600
From:   David Ahern <dsahern@...il.com>
To:     kernel test robot <rong.a.chen@...el.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        LKML <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>, lkp@...org
Subject: Re: [LKP] [net/ipv6] 4ed591c8ab:
 kernel_selftests.net.fib-onlink-tests.sh.fail

On 11/1/18 8:11 PM, kernel test robot wrote:
> FYI, we noticed the following commit (built with gcc-7):
> 
> commit: 4ed591c8ab44e711e56b8e021ffaf4f407c045f5 ("net/ipv6: Allow onlink routes to have a device mismatch if it is the default route")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

our mileage varies.

When I run fib-onlink-tests.sh I get:
Tests passed:  38
Tests failed:   0

The said patch does fix a bug with onlink routes and the test cases were
updated in the same patch. I this case you can not mix and match tests
and kernels -- ie., running new tests on older kernel will generate a
failure. I am guessing that is the case here.