If long term rates rise from current levels, in a smooth manner, stock market have historically done pretty well. Over 6%, on the 10-year could mark the time for serious worrying.
Looking at the 2013 recurrence, the market initially sold off(when Fed telegraphed the tapering and/or sharp rise), but was able to return an impressive 18% from end of May to end of year 2013, as the 10 year yield rose from 1.6 to 3%.