Exited on signal 10 (core dumped)

Starting from last week I’m suddenly getting the following error in /var/log/messages:
kernel: pid 76749 (haproxy), uid 0: exited on signal 10 (core dumped) resulting in a crash of HAproxy.

This using Haproxy 1.6.3 on FreeBSD 10.2-RELEASE-p12.

There are no other log messages because haproxy doesn’t even get the chance to quit gracefully. Any idea what could be causing this problem? It’s limited to Haproxy since other daemons on the same machine run fine.

The crashes occur randomly, a few times per day. There is no clear pattern. Other than that it runs perfectly fine…


I am seeing a new crash as well with 1.5.14 and 1.5.15 with a config that has worked for the last year.

More info: