My syslog-ng 1.5.21 on NetBSD 1.5.3 i386 took a core dump a couple of nights ago - backtrace is below. Bazsi, if you need any more diagnostic info, let me know. I'll probably attempt to upgrade to the current stuff soon, but thought I'd post this in case it wasn't caught yet. Core was generated by `syslog-ng'. Program terminated with signal 11, Segmentation fault. Reading symbols from /usr/libexec/ld.elf_so...done. Reading symbols from /usr/lib/libwrap.so.0...done. Reading symbols from /usr/lib/libc.so.12...done. #0 0x8053a34 in gc_sweep () (gdb) bt #0 0x8053a34 in gc_sweep () #1 0x8053afb in gc () #2 0x8053b5e in gc_maybe () #3 0x8051fe0 in io_iter () #4 0x804a12d in main_loop (backend=0x805d000) at main.c:239 #5 0x804a78e in main (argc=7, argv=0xbfbfdd50) at main.c:514 #6 0x8049b89 in ___start ()