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From:   Dirk Gouders <dirk@gouders.net>
To:     Randy Dunlap <rdunlap@infradead.org>
Cc:     Masahiro Yamada <yamada.masahiro@socionext.com>,
        Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Segher Boessenkool <segher@kernel.crashing.org>,
        Sam Ravnborg <sam@ravnborg.org>
Subject: Re: [RFC v7 1/1] mconf: global i-search in menu prompts
In-Reply-To: <7a371124-007b-f758-44f0-c70c64ff5974@infradead.org> (Randy
        Dunlap's message of "Tue, 19 Jun 2018 12:34:21 -0700")
References: <20180617121534.4809-1-dirk@gouders.net>
        <20180617121534.4809-2-dirk@gouders.net>
        <6e23227d-f3ed-2197-7458-b060b8c90b64@infradead.org>
        <ghk1qusjf8.fsf@lena.gouders.net>
        <7a371124-007b-f758-44f0-c70c64ff5974@infradead.org>
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Date:   Tue, 19 Jun 2018 21:43:34 +0200
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Randy Dunlap <rdunlap@infradead.org> writes:

> On 06/19/2018 11:47 AM, Dirk Gouders wrote:
>> Randy Dunlap <rdunlap@infradead.org> writes:
>> 
>>> Hi Dirk,
>>>
>>> On 06/17/2018 05:15 AM, Dirk Gouders wrote:
>>>>
>>>> At any time, at most one i-search is active and the navigation path to
>>>> the current menu is displayed in the subtitle, the second line in the
>>>> menu window.
>>>
>>> Nice.
>>>
>>> And the highlight of the current menu item is also nice when TAB is used to
>>> switch to the buttons.  As well as toggling the help text based on context.
>>>
>>>
>>>> Navigation example:
>>>>
>>>> To navigate to options concerning NFS file systems, simply type 'n',
>>>> 'f' and 's'.
>>>>
>>>> Hint: use the 'z' key with focus on buttons to search for invisible
>>>>       prompts.
>>>
>>> I think what this says is that the 'z' key is a toggle for the display of
>>> some (invisible) prompts.  Is that correct?
>>>
>>>
>>>
>>> I reliably (consistently) get a segfault.  I have hit it several times.
>>> Here is one way to get it:
>>>
>>> $ make menuconfig
>>> and then enter:
>>> /debug\
>> 
>> Hello Randy,
>> 
>> thank you for testing and your comments!
>> 
>> Concerning the segfault, I already have a version 8 prepared but wanted
>> to do more testing before disturbing people, again.
>> 
>> The initialization and operation of the serialized menu was ugly and
>> wrong.  I did not notice segfaults so far, but I can imagine the
>> segfaults you noticed are caused by this, because the code you tested
>> did not operate only on propper initialized array elements.
>> 
>> Before sending out version 8, I would like to include your other
>> suggestions as well, so could you please try the attached patch if that
>> also produces the segfaults?
>
> Yes, this one is working for me without faults.

Thank you very much.

I will prepare a v8 with your comments on the diff also respected.

Dirk