GNU bug report logs - #30182
27.0.50; Crash when doing mouse-over on modeline

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From: martin rudalics <rudalics <at> gmx.at>
To: Eli Zaretskii <eliz <at> gnu.org>, Sujith <m.sujith <at> gmail.com>
Cc: 30182 <at> debbugs.gnu.org
Subject: bug#30182: Update
Date: Tue, 23 Jan 2018 19:44:53 +0100

> So the question now becomes: how come this code:
>
>    result_len_byte = 0;
>    result_len = 0;
>    some_multibyte = 0;
>    for (argnum = 0; argnum < nargs; argnum++)
>      {
>        EMACS_INT len;
>        this = args[argnum];
>        len = XFASTINT (Flength (this));
>        ...
>      }
>    result_len += len;
>
> (nargs = 1 in this case) produces result_len of 4, when timer-list has
> actually 5 elements?  Martin, any ideas?

Been there all the time.  That's why I earlier asked

  Wouldn't that imply that a timer was added after `copy-sequence'
  started?

We don't know whether `timer-list' had actually 5 elements when
running the above code.  And Fmake_list can rarely_quit.

martin

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