Once again SIGSEGV.

I think the problem is not here, but in a connection cancel/abandon code. It seems like race conditions with asynchronous connection dropping. But currently I not review enough of code.

/servers/slapd/overlays/syncprov.c @@ -1307,21 +1307,21 @@ syncprov_matchops( Operation *op, opcookie *opc, int saveit ) op2.o_hdr = &oh; op2.o_extra = op->o_extra; op2.o_callback = NULL; if (ss->s_flags & PS_FIX_FILTER) { /* Skip the AND/GE clause that we stuck on in front. We would lose deletes/mods that happen during the refresh phase otherwise (ITS#6555) */ op2.ors_filter = ss->s_op->ors_filter->f_and->f_next; } ldap_pvt_thread_mutex_unlock( &ss->s_mutex ); rc = test_filter( &op2, e, op2.ors_filter ); }

Debug( LDAP_DEBUG_NONE, "syncprov_matchops: sid %03x fscope %d rc %d\n", ss->s_sid, fc.fscope, rc );

Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7f9762ffe700 (LWP 29507)] test_filter (op=0x7f9762ffc210, e=0x7f96f19c37d8, f=0x20) at filterentry.c:69 69 if ( f->f_choice & SLAPD_FILTER_UNDEFINED ) {

(0) /opt/openldap.devel/libexec/slapd() [0x4430b7]: test_filter /home/ly/Projects/openldap.git/servers/slapd/filterentry.c:69 (1) /opt/openldap.devel/libexec/slapd() [0x515081]: syncprov_matchops /home/ly/Projects/openldap.git/servers/slapd/overlays/syncprov.c:1317 (2) /opt/openldap.devel/libexec/slapd() [0x515f43]: syncprov_op_response /home/ly/Projects/openldap.git/servers/slapd/overlays/syncprov.c:1941 (3) /opt/openldap.devel/libexec/slapd() [0x434163]: slap_response_play /home/ly/Projects/openldap.git/servers/slapd/result.c:509 (4) /opt/openldap.devel/libexec/slapd() [0x4346ca]: send_ldap_response /home/ly/Projects/openldap.git/servers/slapd/result.c:584 (5) /opt/openldap.devel/libexec/slapd() [0x435062]: slap_send_ldap_result /home/ly/Projects/openldap.git/servers/slapd/result.c:861 (6) /opt/openldap.devel/libexec/slapd() [0x4cb2e9]: mdb_add /home/ly/Projects/openldap.git/servers/slapd/back-mdb/add.c:434 (7) /opt/openldap.devel/libexec/slapd() [0x48b506]: overlay_op_walk /home/ly/Projects/openldap.git/servers/slapd/backover.c:674 (8) /opt/openldap.devel/libexec/slapd() [0x48b671]: over_op_func /home/ly/Projects/openldap.git/servers/slapd/backover.c:724