I was able to bisect this down to 53216e7 being the problematic commit, when using calls to setsockopt(... SO_LINGER ...) as the test metric.
I used the number of calls to setsockopt with SO_LINGER in them using the following command. $ sudo timeout 60s strace -e setsockopt,close -p $(ps -lf -C haproxy | tail -n 1 | awk -e '{print $4}') 2>&1 | tee 1.9-${V} ; grep LINGER 1.9-${V} | wc -l 53216e7 = 1 81a15af6b = 69 Interesting to note is that 1.8.17 only has roughly 17. I'll see if I can do a bisection for that tomorrow. Hope that helps. Dave. On Thu, Jun 13, 2019 at 3:30 PM Willy Tarreau <w...@1wt.eu> wrote: > On Thu, Jun 13, 2019 at 03:20:20PM -0500, Dave Chiluk wrote: > > I've attached an haproxy.cfg that is as minimal as I felt comfortable. > (...) > > many thanks for this, Dave, I truly appreciate it. I'll have a look at > it hopefully tomorrow morning. > > Willy >