帮忙看个出core原因

flingblue

(gdb) where
#0  0xc019ccd8 in real_malloc+0xbb0 () from /usr/lib/libc.2
#1  0xc019a024 in _malloc+0x54c () from /usr/lib/libc.2
#2  0xc01a0074 in malloc+0x18c () from /usr/lib/libc.2
#3  0xc4f19a14 in _sqcopycmdtxt+0x98 () from /home/informix/lib/esql/libixsql.sl
#4  0xc4f1a190 in sqli_curs_decl_stat+0x124 () from /home/informix/lib/esql/libixsql.sl
#5  0xc4f1a5dc in sqli_curs_decl_dynm+0xac () from /home/informix/lib/esql/libixsql.sl
#6  0x2568f4 in _ecCursorOpen (stmt=0x7f7f26f8 "select top1Index , top2Index , top3Index , top4Index , top5Index from CRBT_TOPSTAT where toptype = 4 ")
    at sdf/ecfuncs.ec:562