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Subject: Re: [tip:sched/core] BUILD SUCCESS
 3387ce4d8a5f2956fab827edf499fe6780e83faa
To:     Peter Zijlstra <peterz@infradead.org>
Cc:     Nathan Chancellor <nathan@kernel.org>,
        kernel test robot <lkp@intel.com>, x86-ml <x86@kernel.org>,
        linux-kernel@vger.kernel.org
References: <6238fde0.Qe5umewxqwiDe2GE%lkp@intel.com>
 <YjkHkb7joeu5GCto@dev-arch.thelio-3990X>
 <24dd031a-8ea7-5f01-4d80-3fb30d212c8a@intel.com>
 <20220324175801.GJ8939@worktop.programming.kicks-ass.net>
From:   "Chen, Rong A" <rong.a.chen@intel.com>
Message-ID: <2d37183b-e0d5-dd37-11c7-9b0e415daaf4@intel.com>
Date:   Fri, 25 Mar 2022 18:45:24 +0800
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On 3/25/2022 1:58 AM, Peter Zijlstra wrote:
> On Tue, Mar 22, 2022 at 10:39:41AM +0800, Chen, Rong A wrote:
>> On 3/22/2022 7:17 AM, Nathan Chancellor wrote:
>>> Hello,
>>>
>>> On Tue, Mar 22, 2022 at 06:36:16AM +0800, kernel test robot wrote:
>>>> tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched/core
>>>> branch HEAD: 3387ce4d8a5f2956fab827edf499fe6780e83faa  headers/prep: Fix header to build standalone: <linux/psi.h>
>>>>
>>>> elapsed time: 730m
>>>>
>>>> configs tested: 114
>>>> configs skipped: 3
>>>>
>>>> The following configs have been built successfully.
>>>> More configs may be tested in the coming days.
>>>>
>>>> gcc tested configs:
>>> ...
>>>> arm                              allyesconfig
>>>> arm                              allmodconfig
>>>
> 
>>> Are you sure these configurations built sucessfully?
> 
> ...
> 
>> Thanks for your reminding, the problem commit is 4ff8f2ca6ccd
>> ("sched/headers: Reorganize, clean up and optimize kernel/sched/sched.h
>> dependencies"),
>> the bot has sent two build reports related to it:
>>
>>    https://lore.kernel.org/all/202203152116.qphmikIZ-lkp@intel.com/
>>    https://lore.kernel.org/all/202203152144.uFQqgVUf-lkp@intel.com/
>>
>> and more reports were stopped to avoid too many noise, like below one:
> 
> ...
> 
>> We'll adjust the strategy avoid blocking some important reports.
> 
> Oh *PLEASE* never report a branch as building if there's errors.
> It could be I (force) push a branch multiple times before I get any
> 0day reports back (0day has gotten *soooo* slow) so I only ever look at
> the latest report -- possibly days later.

Hi Peter,

Sorry for the bad experience, I'm not sure the meaning of "a branch as
building", is there a way to know the branch is not ready, or we can
postpone the test for a branch by a day?


> 
> If you then falsly report the branch as being good, because you're
> suppressing errors, things *will* go bad.
> 
> 

yes, current the summary report only shows the errors that bisected
successfully in a cycle, but it may causes some errors missing
and old errors still in the report, we plan to redesign the report
to present all (may a lot) recent errors.

Best Regards,
Rong Chen