Le mardi 09 mars 2010 à 17:08 +0100, Raphael Frey a écrit : 
>         Thread 2 (Thread 0xb6741b90 (LWP 6532)):
>         #0  0xb6b6c9bd in ?? () from /usr/lib/libpixman-1.so.0
>         No symbol table info available.
>         #1  0xb5cf63c0 in ?? ()
>         No symbol table info available.
>         #2  0x00000000 in ?? ()
>         No symbol table info available.

We’re getting closer. The livelock is probably in this thread. Can you
install debugging symbols for libcairo and libpixman and try again?
Please do it several times in a row, to see if it’s always the same
codepath that’s involved.

This confirms my idea of a bug in the handling of Type 3 bitmap fonts,
since it’s probably for them that cairo calls libpixman.

Note that this could be simply caused by the rendering engine being so
slow that it just never ends in a reasonable timeframe.

Cheers,
-- 
 .''`.      Josselin Mouette
: :' :
`. `'   “I recommend you to learn English in hope that you in
  `-     future understand things”  -- Jörg Schilling

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