Public bug reported:
Binary package hint: xorg
After upgrading to xserver-xorg-7.2-0ubuntu1 on feisty, all applications
that use fontconfig spin forever with 100% CPU on startup. (Everything
is fine after downgrading to 7.1.1ubuntu8.) This is strange given that
xserver-xorg is just a metapackage.
Here is a stack trace after interrupting the loop in gdb:
#0 0x00002b60153b2d59 in IA__FcFreeTypeCharSetAndSpacing (face=0x8e9f60,
blanks=0x8c86c0, spacing=0x7fff99d27a6c) at fcfreetype.c:2398
#1 0x00002b60153b495e in IA__FcFreeTypeQueryFace (face=0x8e9f60,
file=0x8b8e00 "/usr/share/X11/fonts/Type1/lmb10.pfb", id=0,
blanks=0x8c86c0) at fcfreetype.c:1666
#2 0x00002b60153b53e9 in IA__FcFreeTypeQuery (
file=0x8b8e00 "/usr/share/X11/fonts/Type1/lmb10.pfb", id=0,
blanks=0x8c86c0, count=0x7fff99d27b14) at fcfreetype.c:1806
#3 0x00002b60153b229f in FcFileScanConfig (set=0x8bd460, dirs=0x8b6120,
blanks=0x8c86c0, file=0x8b8e00 "/usr/share/X11/fonts/Type1/lmb10.pfb",
config=0x8b1ce0) at fcdir.c:61
#4 0x00002b60153b25a7 in FcDirCacheScan (
dir=0x8c8d00 "/usr/share/X11/fonts/Type1", config=0x8b1ce0) at fcdir.c:216
#5 0x00002b60153aedd9 in FcConfigAddDirList (config=0x8b1ce0,
set=FcSetSystem, dirSet=0x8b1d70) at fccfg.c:303
#6 0x00002b60153af046 in IA__FcConfigBuildFonts (config=0x8b1ce0)
at fccfg.c:336
#7 0x00002b60153b5acb in IA__FcInitLoadConfigAndFonts () at fcinit.c:106
#8 0x00002b60153b5b8d in IA__FcInit () at fcinit.c:124
#9 0x00002b60153ae352 in IA__FcConfigGetCurrent () at fccfg.c:360
#10 0x00002b60153aea5f in IA__FcConfigSubstituteWithPat (config=0x0,
p=0x845750, p_pat=0x0, kind=FcMatchPattern) at fccfg.c:1289
...
(The particular font doesn't matter; after uninstalling lmodern, it was
spinning on /usr/share/X11/fonts/Type1/s050000l.pfb instead.)
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: Unconfirmed
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xserver-xorg-7.2-0ubuntu1 upgrade causes apps to hang in fontconfig
https://launchpad.net/bugs/87385
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