Hello, I'm digging for bugs in the Debian boa package which I'm now the maintainer for and found your report.
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=135751 Do you still use boa? Can you tell me if that still happens? If so, you can send me those trace, strace and tcpdump files directly.
pgpAyoB6nFH0l.pgp
Description: PGP signature