Hi Sachin,
there is another fix Willy recently committed, its ff9c7e24fb [1] and its in the snapshots [2] since 1.6.4-20160426. This is supposed to fix the issue altogether. Please let us know if this works for you. Thanks, Lukas[1] http://www.haproxy.org/git?p=haproxy-1.6.git;a=commitdiff_plain;h=ff9c7e24fbbc33074e5257297e38473a3411f407
[2] http://www.haproxy.org/download/1.6/src/snapshot/