Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.
Your bug report will be posted to the address@hidden mailing list.
Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:
$ emacs -Q
Paste this code in the *scratch* buffer:
(x-show-tip
"" nil
'((border-width . 0)
(internal-border-width . 0))
5 100 100)
Evaluate it with C-x C-e. Now Emacs crashes. If the string is not
empty it works well and if any of the borders are greater than zero it
works too.