[syslog-ng] syslog-ng 3.1.2 segmentation fault in Ubuntu 10.10

Hello, Our syslog-ng server is lately raising a segfault every day or so. The error is of the form "segfault at 7f8677df0338 ip 00007f8676fa8e9d sp 00007fff1d2ec280 error 4 in libpcre.so.3.12.1[7f8676f96000+30000]." Does anyone know what this means? Thanks.