Bug 98422

Summary:	fc-cache failed to generate correct cache for builtin font-set SFNS-series
Product:	fontconfig	Reporter:	whitebob <qliu>
Component:	fc-cache	Assignee:	fontconfig-bugs
Status:	RESOLVED DUPLICATE	QA Contact:	Behdad Esfahbod <freedesktop>
Severity:	critical
Priority:	medium
Version:	2.12
Hardware:	x86-64 (AMD64)
OS:	Mac OS X (All)
Whiteboard:
i915 platform:		i915 features:
Attachments:	cache problem output

Description whitebob 2016-10-25 02:28:40 UTC

This bug happens with new Xquartz 2.7.10, with fontconfig  lib 2.12.1
It seems have some problems when cache the system fonts SFNSDislay-* or SFNSText-* in the directory /System/Library/Fonts/.

fc-cache will report an invalid cache file found and then delete it. Thus every time the  fontconfig lib will recache it. This behavior results in a big latency (15s~40s) when launching  program such as xterm and xfontsel. 

I am sure those SFNS-Series otf fonts have some problem with new version fontconfig. 
but not sure it is due to the font file problem or errors from fontconfig.  

Temporary solution is to disable the font path /System/Library/Fonts in /opt/X11/lib/X11/fontconfig/conf.d/05-OSX-fonts.conf

As it is terribly slowing down the launch of xterm and window manager, I mark it as a critical problem, though the problem may be easy to solve.

Comment 1 whitebob 2016-10-25 02:35:09 UTC

Created attachment 127526 [details]
cache problem output

Comment 2 whitebob 2016-10-25 06:20:06 UTC

This bug still exists in 2.7.11_rc1.  I doubt it is not the same as bug #97546.

Comment 3 whitebob 2016-10-27 15:30:30 UTC


*** This bug has been marked as a duplicate of bug 97546 ***

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