On Fri, 2 Mar 2012 08:03:00 GMT, roy.keene@us.army.mil wrote:

Breaking the assignment into an assignment of its members and using the existing COPY_PGNO() alleviates this fault.

memcpy would be simpler, if it is 'db' which is unaligned. Try this instead.

--- mdb.c~ 2012-03-02 11:23:21 +++ mdb.c 2012-03-02 11:25:06 @@ -4699,4 +4699,3 @@ mdb_xcursor_init1(MDB_cursor *mc, MDB_no if (node->mn_flags & F_SUBDATA) { - MDB_db *db = NODEDATA(node); - mx->mx_db = *db; + memcpy(&mx->mx_db, NODEDATA(node), sizeof(MDB_db)); mx->mx_cursor.mc_snum = 0;