bug#57439: 29.0.50; xterm.c:20623: Emacs fatal error: assertion failed: !must_free_data

[Po Lu]

Gregor Zattler <grfz@gmx.de> writes:

> Hi Po,
> * Po Lu <luangruo@yahoo.com> [2022-08-27; 09:52 +08]:
>> Gregor Zattler <grfz@gmx.de> writes:
>>> for me Emacs crashes if build Emacs master with git HEAD on
>>> 9ba6a7c508cbaed5eeedd56e7df633b722bf86b7 with --with-x-toolkit=no :
>>>
>>> 1. emacs -Q
>>> 2. click on "Options" menu
>>> 3. crash
>>>
>>> originally I did this with an -O3 optimized build, then for
>>> a hopefully better backtrace I re-build Emacs with -O0
>>> (which to build took roughly three times the amount of wall
>>> time than building the optimized one).
>>>
>>> This is the full backtrace:
>>
>> Thanks.  Should be fixed now.
>
> I confirm this fixes this crash for me.
>
>> (This is really a bug in Xlib, since XGetEventData shouldn't return True
>> if the data no longer exists.)
>
> Thank you very much, Gregor

Thanks, I'm closing this bug now.