I found this libvert issue involving libssh2: https://bugzilla.redhat.com/show_bug.cgi?id=905513
Allegedly, libssh2 can destroy the known_hosts file for lines it doesn't recognize.
I'm a bit annoyed to find that (old) report this way but I figured I send it this way so that the right people get to know about it and possible someone feels like fixing it (if indeed found correct)!
-- / daniel.haxx.se _______________________________________________ libssh2-devel http://cool.haxx.se/cgi-bin/mailman/listinfo/libssh2-devel
