netdev - Re: 6c409a3aee: kernel_selftests.bpf.test

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Date:   Mon, 24 Jun 2019 08:43:28 +0800
From:   Rong Chen <rong.a.chen@...el.com>
To:     Alexei Starovoitov <alexei.starovoitov@...il.com>
Cc:     Andreas Steinmetz <ast@...dv.de>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andriin@...com>,
        Edward Cree <ecree@...arflare.com>, bpf <bpf@...r.kernel.org>,
        Network Development <netdev@...r.kernel.org>, LKP <lkp@...org>
Subject: Re: 6c409a3aee: kernel_selftests.bpf.test_verifier.fail

On 6/21/19 11:52 PM, Alexei Starovoitov wrote:
> On Fri, Jun 21, 2019 at 1:36 AM kernel test robot <rong.a.chen@...el.com> wrote:
>> # #340/p direct packet access: test22 (x += pkt_ptr, 3) OK
>> # #341/p direct packet access: test23 (x += pkt_ptr, 4) FAIL
>> # Unexpected success to load!
>> # verification time 17 usec
>> # stack depth 8
>> # processed 18 insns (limit 1000000) max_states_per_insn 0 total_states 1 peak_states 1 mark_read 0
>> # #342/p direct packet access: test24 (x += pkt_ptr, 5) OK
>> # #343/p direct packet access: test25 (marking on <, good access) OK
> ..
>> # #673/p meta access, test9 OK
>> # #674/p meta access, test10 FAIL
>> # Unexpected success to load!
>> # verification time 29 usec
>> # stack depth 8
>> # processed 19 insns (limit 1000000) max_states_per_insn 0 total_states 1 peak_states 1 mark_read 0
>> # #675/p meta access, test11 OK
> Hi Rong,
>
> the patch quoted is not in bpf-next/net-next.
> This patch is work-in-progress that I posted to mailing list
> and pushed into my own git branch on kernel.org.
> It's awesome that build bot does this early testing.
> I really like it.
> Would be great if the bot can add a tag to email subject that it's testing
> this not yet merged patch.
>
> Right now since the email says
> commit: 6c409a3aee945e50c6dd4109689f52
> it felt that this is real commit and my initial reaction
> was that 'ohh something is broken in the merge code'
> which wasn't the case :)


Hi Alexei,

Thanks for the advice, we'll improve the email subject.

Best Regards,
Rong Chen