jesper(4:ttyp5)[~/torrent]$ gdb /usr/local/bin/rtorrent rtorrent.core 
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This GDB was configured as "i386-marcel-freebsd"...(no debugging symbols found)...
Core was generated by `rtorrent'.
Program terminated with signal 6, Aborted.
Reading symbols from /usr/local/lib/libncursesw.so.5.6...(no debugging symbols found)...done.
Loaded symbols for /usr/local/lib/libncursesw.so.5.6
Reading symbols from /usr/local/lib/libcurl.so.4...(no debugging symbols found)...done.
Loaded symbols for /usr/local/lib/libcurl.so.4
Reading symbols from /usr/lib/libssl.so.5...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libssl.so.5
Reading symbols from /lib/libz.so.4...(no debugging symbols found)...done.
Loaded symbols for /lib/libz.so.4
Reading symbols from /usr/local/lib/libtorrent.so.10...(no debugging symbols found)...done.
Loaded symbols for /usr/local/lib/libtorrent.so.10
Reading symbols from /lib/libcrypto.so.5...(no debugging symbols found)...done.
Loaded symbols for /lib/libcrypto.so.5
Reading symbols from /usr/local/lib/libsigc-2.0.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/local/lib/libsigc-2.0.so.0
Reading symbols from /usr/lib/libstdc++.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libstdc++.so.6
Reading symbols from /lib/libm.so.5...(no debugging symbols found)...done.
Loaded symbols for /lib/libm.so.5
Reading symbols from /lib/libgcc_s.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/libgcc_s.so.1
Reading symbols from /lib/libc.so.7...(no debugging symbols found)...done.
Loaded symbols for /lib/libc.so.7
Reading symbols from /usr/local/lib/libtinfow.so.5.6...(no debugging symbols found)...done.
Loaded symbols for /usr/local/lib/libtinfow.so.5.6
Reading symbols from /libexec/ld-elf.so.1...(no debugging symbols found)...done.
Loaded symbols for /libexec/ld-elf.so.1
#0  0x285937c3 in kill () from /lib/libc.so.7
(gdb) bt
#0  0x285937c3 in kill () from /lib/libc.so.7
#1  0x28593722 in raise () from /lib/libc.so.7
#2  0x285924d8 in abort () from /lib/libc.so.7
#3  0x283c0da5 in uw_init_context_1 () from /usr/local/lib/libsigc-2.0.so.0
#4  0x283c0fb5 in _Unwind_RaiseException () from /usr/local/lib/libsigc-2.0.so.0
#5  0x2842b4e9 in __cxa_throw () from /usr/lib/libstdc++.so.6
#6  0x28237f7f in torrent::Handshake::event_write () from /usr/local/lib/libtorrent.so.10
#7  0x28200f95 in std::for_each<__gnu_cxx::__normal_iterator<torrent::Event**, std::vector<torrent::Event*, std::allocator<torrent::Event*> > >, torrent::poll_check_t<std::mem_fun_t<void, torrent::Event> > > ()
   from /usr/local/lib/libtorrent.so.10
#8  0x282001d5 in torrent::PollSelect::perform () from /usr/local/lib/libtorrent.so.10
#9  0x080b5585 in std::list<sigc::slot_base, std::allocator<sigc::slot_base> >::erase ()
#10 0x0807281f in std::vector<rak::priority_item*, std::allocator<rak::priority_item*> >::_M_insert_aux ()
#11 0x08052573 in ?? ()
#12 0x00000001 in ?? ()
#13 0xbfbfec04 in ?? ()
#14 0xbfbfec0c in ?? ()
#15 0x00000000 in ?? ()
#16 0x280f52cc in dlclose () from /libexec/ld-elf.so.1
#17 0x00000001 in ?? ()
(gdb)