[Devel] segfault in new cache code

[Werner LEMBERG]

Linking ftview with libefence, I get the following backtrace:

0x080509fd in ftc_node_hash_unlink (node=0x406e1fe4, cache=0x4029dfb8)
    at /home/ft/freetype2/src/cache/ftccache.c:228
228           *pnode = *pold;
(gdb) bt
#0  0x080509fd in ftc_node_hash_unlink (node=0x406e1fe4, cache=0x4029dfb8)
    at /home/ft/freetype2/src/cache/ftccache.c:228
#1  0x08050c87 in ftc_node_destroy (node=0x406e1fe4, manager=0x40291f8c)
    at /home/ft/freetype2/src/cache/ftccache.c:407
#2  0x0805046f in FTC_Manager_Compress (manager=0x40291f8c)
    at /home/ft/freetype2/src/cache/ftcmanag.c:677
#3  0x08051450 in ftc_cache_lookup (cache=0x40297fb8, query=0xbffff2c0, 
    anode=0xbffff2bc) at /home/ft/freetype2/src/cache/ftccache.c:920
#4  0x08051d85 in ftc_sbit_cache_lookup (cache=0x40297fb8, query=0xbffff2c0, 
    anode=0xbffff2bc) at /home/ft/freetype2/src/cache/ftccache.i:122
#5  0x08051e9c in FTC_SBitCache_Lookup (cache=0x40297fb8, desc=0x80a1f2c, 
    gindex=96, ansbit=0xbffff328, anode=0x0)
    at /home/ft/freetype2/src/cache/ftcsbits.c:506
#6  0x08049b10 in get_glyph_bitmap (Index=96, target=0xbffff374, 
    left=0xbffff368, top=0xbffff364, x_advance=0xbffff360, 
    y_advance=0xbffff35c, aglyf=0xbffff390) at src/ftcommon.i:511
#7  0x08049e54 in Render_All (first_index=0) at src/ftview.c:59
#8  0x0804aadf in main (argc=0, argv=0xbffff480) at src/ftview.c:511
#9  0x401237ee in __libc_start_main () from /lib/libc.so.6


    Werner