(gdb) bt full
#0  0xb7e64f53 in _int_malloc () from /lib/libc.so.6
No symbol table info available.
#1  0xb7e65fd8 in malloc_check () from /lib/libc.so.6
No symbol table info available.
#2  0xb7e673cb in malloc () from /lib/libc.so.6
No symbol table info available.
#3  0x08048899 in main () at dload.c:42
        dlf = (fetchIO *) 0x9affd50
        localf = (FILE *) 0x9afe008
        dl_thisfile = 2489856
        nread = 0
        buffer = "\224t\027�D�\v!p�\024\2043\023�\036cL\001�i8\206\022\221�\220C��\220\a���W����*u)�.p�E�\225��Jõ\006\024*�C�\225\b?\024\227\004\03697]��h,�\004\035���Q\002i�^\016�w\217�C�H\210���.��L�gND}y��\213!u��\222_�\203t�3gf�S<s\016|�\027;3gҦ\aB�h\215K\016�ϡ\022�c[�S >\f\037\2315\213�\20593�\217���b�Լ\023\207N�v��M\003�C1u��i��#5�"...
        url = 0x8048a30 "http://mirror.aarnet.edu.au/pub/archlinux/extra/os/i686/qt-4.5.2-5-i686.pkg.tar.gz"
        filename = 0x8048a83 "localfile"
        ust = {size = 28909758, atime = 0, mtime = 1249347112}
        ret = 0
        i = 4