send_search_entry: conn 9279837 ber write failed

Hello,

some time ago I upgraded our server to version 2.4.16. Since then, for 3 times, the server hangs with this message:

Jul 27 09:31:50 sseed0013 slapd[22555]: conn=9279837 fd=110 ACCEPT from IP=XXX.XXX.XXX.XX:41577 (IP=0.0.0.0:389) Jul 27 09:31:50 sseed0013 slapd[22555]: conn=9279837 op=0 BIND dn="cn=admin" method=128 Jul 27 09:31:50 sseed0013 slapd[22555]: conn=9279837 op=0 BIND dn="cn=admin" mech=SIMPLE ssf=0 Jul 27 09:31:50 sseed0013 slapd[22555]: conn=9279837 op=0 RESULT tag=97 err=0 text= Jul 27 09:31:50 sseed0013 slapd[22555]: conn=9279837 op=1 SRCH base="ou=seed" scope=2 deref=0 filter="(&(uidNumber=12916)(phpgwAccountType=u))" Jul 27 09:31:50 sseed0013 slapd[22555]: conn=9279837 op=1 SEARCH RESULT tag=101 err=0 nentries=1 text= Jul 27 09:31:50 sseed0013 slapd[22555]: conn=9279837 op=2 SRCH base="ou=seed" scope=2 deref=0 filter="(&(uidNumber=12916)(phpgwAccountType=u))" Jul 27 09:31:50 sseed0013 slapd[22555]: conn=9279837 op=2 SEARCH RESULT tag=101 err=0 nentries=1 text= Jul 27 09:31:51 sseed0013 slapd[22555]: conn=9279837 op=3 SRCH base="ou=seed" scope=2 deref=0 filter="(uidNumber=12916)" Jul 27 09:31:51 sseed0013 slapd[22555]: conn=9279837 op=3 SEARCH RESULT tag=101 err=0 nentries=1 text= Jul 27 09:31:51 sseed0013 slapd[22555]: conn=9279837 op=4 SRCH base="ou=seed" scope=2 deref=0 filter="(&(uidNumber=12916)(phpgwAccountType=u))" Jul 27 09:31:51 sseed0013 slapd[22555]: conn=9279837 op=4 SEARCH RESULT tag=101 err=0 nentries=1 text= Jul 27 09:31:51 sseed0013 slapd[22555]: conn=9279837 op=5 SRCH base="ou=seed" scope=2 deref=0 filter="(&(gidNumber=20877)(phpgwAccountType=g))" Jul 27 09:32:33 sseed0013 slapd[22555]: conn=9279837 op=6 SRCH base="ou=seed" scope=2 deref=0 filter="(&(uidNumber=20877)(phpgwAccountType=u))" Jul 27 09:32:36 sseed0013 slapd[22555]: conn=9279837 op=6 SEARCH RESULT tag=101 err=0 nentries=0 text= *Jul 27 09:32:42 sseed0013 slapd[22555]: send_search_entry: conn 9279837 ber write failed.*

The config and load of this server is almost the same of the old version (2.3.30)

Thanks for any tip,

Regards,

João Alfredo