On Thu, Jun 08, 2017 at 01:06:21PM +0000, remy.dernat@umontpellier.fr wrote:

I am able to reproduce the bug quite easily.

I'm afraid I have not been able to. I followed the steps you posted (with s/hdb/mdb/) with both servers running slapd 2.4.40+dfsg-1+deb8u3 and syncrepl seems to work fine.

https://bugs.debian.org/798964 seems quite similar. Rémy, do you think this problem started for you right after you upgraded to +deb8u3?