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Subject: Re: Linux 5.10-rc2 (docs build)
To:     Mauro Carvalho Chehab <mchehab@kernel.org>
Cc:     Linus Torvalds <torvalds@linux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Jonathan Corbet <corbet@lwn.net>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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From:   Randy Dunlap <rdunlap@infradead.org>
Message-ID: <fccc0ef0-e96a-0e0d-69d9-f72f6a31a201@infradead.org>
Date:   Mon, 2 Nov 2020 12:41:53 -0800
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On 11/2/20 12:35 PM, Mauro Carvalho Chehab wrote:
> Em Mon, 2 Nov 2020 11:23:25 -0800
> Randy Dunlap <rdunlap@infradead.org> escreveu:
> 
>> On 11/2/20 8:59 AM, Mauro Carvalho Chehab wrote:
>>> Em Mon, 2 Nov 2020 08:02:34 -0800
>>> Randy Dunlap <rdunlap@infradead.org> escreveu:
>>>   
>>>> On 11/2/20 12:33 AM, Mauro Carvalho Chehab wrote:  
>>>>> Em Mon, 2 Nov 2020 08:58:41 +0100
>>>>> Mauro Carvalho Chehab <mchehab@kernel.org> escreveu:
>>>>>     
>>>>>> Hi Randy,
>>>>>>
>>>>>> Em Sun, 1 Nov 2020 16:01:54 -0800
>>>>>> Randy Dunlap <rdunlap@infradead.org> escreveu:
>>>>>>    
>>>>>>> Something broke the docs build (SEVERE):
>>>>>>>
>>>>>>>
>>>>>>> Sphinx parallel build error:
>>>>>>> docutils.utils.SystemMessage: /home/rdunlap/lnx/lnx-510-rc2/Documentation/ABI/testing/sysfs-bus-rapidio:2: (SEVERE/4) Title level inconsistent:
>>>>>>>
>>>>>>> Attributes Common for All RapidIO Devices
>>>>>>> -----------------------------------------
>>>>>>>
>>>>>>>    
>>>>>>
>>>>>> On what tree did you notice this? Linux-next or upstream?    
>>>>
>>>> See $Subject:  5.10-rc2
>>>>
>>>>  
>>>>> Also: on what Sphinx version are you getting it? I'm not
>>>>> able to reproduce the issue here, neither with Sphinx 2.4.4
>>>>> nor with Sphinx 3.2.1.    
>>>>
>>>> That could be one source of the problem:  ;)
>>>>
>>>> from my docs build:
>>>>
>>>> Sphinx version: 1.7.6
>>>> Warning: It is recommended at least Sphinx version 1.7.9.
>>>>          If you want pdf, you need at least 2.4.4.  
>>>
>>> Could be... From 1.7.6 to 1.7.9, there were bug fixes ;-)
>>>
>>> Also, on Sphinx, they stop maintaining old versions once newer
>>> stable ones are launched. So, any bug on 1.7.x (up to 3.2.x) will
>>> remain unfixed[1].
>>>
>>> In any case, could you please check if this patch solves the
>>> issue?
>>>
>>> 	https://lore.kernel.org/lkml/6c62ef5c01d39dee8d891f8390c816d2a889670a.1604312590.git.mchehab+huawei@kernel.org/  
>>
>> Nope, sorry, with that patch applied to v5.10-rc2, I get:
>>
>> reading sources... [ 93%] userspace-api/media/v4l/pixfmt-y8i .. userspace-api/media/v4l/vidioc-querybuf
>> reading sources... [ 96%] userspace-api/media/v4l/vidioc-querycap .. vm/transhuge
>> reading sources... [100%] vm/unevictable-lru .. xtensa/mmu
>>
>> waiting for workers...
>>
>> {hangs; enter ^C}
>>
>> Sphinx parallel build error:
>> docutils.utils.SystemMessage: /home/rdunlap/lnx/lnx-510-rc2/Documentation/ABI/testing/sysfs-class-led-trigger-pattern.orig:16: (SEVERE/4) Unexpected section title.
> 
> Hmm...
> 	sysfs-class-led-trigger-pattern.orig
> 
> That doesn't sound right! It seems you have a backup of an old file
> there ;-)

Ha! I didn't even notice that.  :(

Anyway, it's not illegal to have such files, so Documentation builds
should ignore them (IMO).


> -
> 
> In order to double-check, I tested it here with:
> 
> 	$ /usr/bin/python3 -m venv sphinx_1.7.6
> 	$ pip install docutils sphinx_rtd_theme Sphinx==1.7.6
> 	$ pip install docutils==0.15 sphinx_rtd_theme Sphinx==1.7.6
> 
> 
> And then built the docs with:
> 
> 	$ time make O="sphinx1.7" SPHINXOPTS="-w new_warnings --no-color" cleandocs htmldocs
> 
> Everything build fine (except for a huge amount of warnings that seem
> to indicate some bug at the cross-reference logic with 1.7.6).

OK, I'll wait to see how things are in -rc2 or so.

thanks.
-- 
~Randy