Re: [patch] fix ox-latex async export bug

[Tim Cross]

Nicolas Goaziou <mail@nicolasgoaziou.fr> writes:

> Hello,
>
> Rasmus <rasmus@gmx.us> writes:
>
>> When I try to export documents asynchronously with ox-latex, I always get
>> a bug in the “org-export-processFOO” files. The last sexp is always 
>> something like this: 
>>
>>     (funcall '#<subr F616e6f6e796d6f75732d6c616d626461_anonymous_lambda_83> 
>> "test.tex")
>>
>> where the “#” and “’” are mixed around. This happens even with a very
>> simple ‘org-export-async-init-file’ just loading ELPA Org.
>>
>> This was previously reported here:
>>
>>     https://lists.gnu.org/archive/html/emacs-orgmode/2021-06/msg00422.html
>>
>> Nicolas’ fix (replicated in this patch) seems to fix it.
>
> Applied. Thank you.
>
>> I don’t really understand why this bug happens to be honest.
>
> The patch is already an improvement, but the beast is still lurking,
> indeed.
>

Just a shot in the dark which might be completely misleading, but ...

I noticed a thread recently on emacs-devel which talked about one of the
problems with async calls in Emacs is that they cannot handle user input
correctly. All seems to work fine provided the async process being
generated doesn't try to wait for user input at some point. I'm
wondering if this could be a problem when exporting to latex if the
underlying latex process encounters errors and is waiting for user input
before it can continue (which happens if there are problems in the tex
source latex is trying to process)?

It might be worth checking next time you encounter an error if you can
run latex on the generated *.tex file and see if it waits for user
input?