Re: Crash with --enable-checking and some glyphs

[Robert Pluim]

>>>>> On Wed, 24 Nov 2021 18:01:27 +0100, Lars Ingebrigtsen <larsi@gnus.org> 
>>>>> said:

    Lars> Lars Ingebrigtsen <larsi@gnus.org> writes:
    >> No, of course that wasn't it.  It was --enable-checking.  D'oh.
    >> 
    >> So I'm now able to reproduce the problem on the faster build machine,
    >> which should help.  

    Lars> I assumed that this problem had to be pretty recent, but I'm now back 
to 

    Lars> 58bdfd7c540c49f3727c517c3599c9d601696caf

    Lars> (which is December 31sth 2020), and the abort is still there:

    Lars> xdisp.c:31003: Emacs fatal error: assertion failed: it->ascent >= 0 
&& it->descent >= 0
    Lars> Fatal error 6: Aborted
    Lars> Backtrace:
    Lars> ./src/emacs(+0x19d4d1)[0x5628f66344d1]
    Lars> ./src/emacs(+0x50756)[0x5628f64e7756]
    Lars> ./src/emacs(+0x5653e)[0x5628f64ed53e]

    Lars> So perhaps it's more productive to try to debug it than trying to 
chase
    Lars> the problem down, but before I do that: Is anybody else seeing this?

    Lars> The way to reproduce it is:

    Lars> ./configure --enable-checking
    Lars> make
    Lars> ./src/emacs /tmp/crash.txt

    Lars> where that file contains the contents of:

    Lars> http://quimby.gnus.org/s/crash.txt

Iʼm not seeing it. Iʼm seeing some of those codepoints being displayed
using the 'x' backend, but I guess I could always install some more
fonts....

Robert
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