From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daimrod <daimrod@gmail.com>
Subject: Re: still seeing semi-regular lockups
Date: Thu, 12 Jun 2014 07:18:53 +0900
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In-Reply-To: <87mwdjgmn1.fsf@selenimh.mobile.lan> (Nicolas Goaziou's message
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To: Bastien <bzg@gnu.org>
Cc: Eric Abrahamsen <eric@ericabrahamsen.net>, emacs-orgmode@gnu.org

Nicolas Goaziou <mail@nicolasgoaziou.fr> writes:

> Hello,
>
> Daimrod <daimrod@gmail.com> writes:
>
>> Okay, so I've found a more or less reliable way to reproduce this bug (on my
>> machine at least).
>>
>> 1. $ emacs -Q -l debug.el test.org
>> 2. Expand headline (<S-TAB>)
>> 3. go below the first headline (C-n)
>> 4. press `i' a couple of seconds ~10 chars
>> 5. delete the line (C-a C-k)
>> 6. goto 4 until if locks up
>>
>> As I said, it's not completely reliable but so far the lockup always
>> happens. Sometimes it happens after the third iteration, sometimes after
>> the tenth iteration, but it always happen.
>>
>> I've attached `debug.el' and `test.org'.
>>
>
> [...]
>
>> Do you confirm the lockup with this setting?
>
> Yes, I do. I will investigate on this soon. Thank you for providing this
> recipe.

Cool!

Also, I should have mentioned that I didn't trace the function
`org-element--cache-key-less-p' because when I do so, Emacs stays locked
even when I send it the signal SIGUSR2. However, this function appears
in the backtrace produced by `xbacktrace' in a gdb session if I call it
during a lockup.

My guess is that the lockup happens in `org-element--cache-key-less-p',
called by `org-element--cache-process-request'.

Best,

-- 
Daimrod/Greg