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| From | Robert Pluim <rpluim@gmail.com> |
|---|---|
| Newsgroups | gnu.emacs.bug |
| Subject | bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1' |
| Date | 2020-09-03 16:03 +0200 |
| Message-ID | <mailman.2199.1599141903.2469.bug-gnu-emacs@gnu.org> (permalink) |
| References | (4 earlier) <m2mu272ppt.fsf@gmail.com> <3598262d-b65c-b1b4-310a-29149fd89ebf@Alexander.Shukaev.name> <m21rjj2nc5.fsf@gmail.com> <83k0xbuhdv.fsf@gnu.org> <m2blin0xfa.fsf@gmail.com> |
>>>>> On Thu, 03 Sep 2020 16:19:56 +0300, Eli Zaretskii <eliz@gnu.org> said:
>> From: Robert Pluim <rpluim@gmail.com>
>> Date: Thu, 03 Sep 2020 11:58:50 +0200
>> Cc: 43177@debbugs.gnu.org
>>
>> So this is the 'x' font backend, rather than the 'ftcr' font
>> backend, which I would not expect emacs to be falling back to.
Eli> Why do you think this is evidence of using the fallback backend?
Eli> AFAIR, when Emacs needs to find a font for a character, it loops over
Eli> all the fonts with all the available backends, and only later decides
Eli> which of the fonts to use. Don't you see that if you type some
Eli> character unlikely to have been seen in an "emacs -Q" session?
Youʼre right, Iʼd run through this in gdb, and set my breakpoint on
the wrong function.
'C-u C-x =' would tell us which backend ended up being used.
Robert
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bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1' Robert Pluim <rpluim@gmail.com> - 2020-09-03 16:03 +0200
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