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bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' fro
From: |
Robert Pluim |
Subject: |
bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1' |
Date: |
Thu, 03 Sep 2020 16:03:53 +0200 |
>>>>> 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
- bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1', (continued)
- bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1', Robert Pluim, 2020/09/04
- bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1', Eli Zaretskii, 2020/09/04
- bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1', Robert Pluim, 2020/09/07
- bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1', Pip Cet, 2020/09/07
- bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1', Robert Pluim, 2020/09/07
- bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1', Eli Zaretskii, 2020/09/07
- bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1', Robert Pluim, 2020/09/07
- bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1', Robert Pluim, 2020/09/15
- bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1', Robert Pluim, 2020/09/03
- bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1', Eli Zaretskii, 2020/09/03
- bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1',
Robert Pluim <=
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