[email protected] wrote: > back-monitor was designed before back-config, without considering the > possibility of database removal during regular operations. There might > be several flaws of that kind.
Removal is not supported in 2.4. All of that is work-in-progress for 2.5. Patches welcome, but this is not a 2.4 bug. > My suggestion is that back-monitor is never shut down (it should be > inhibited) except at slapd shutdown. Meanwhile, the code initialization > and shutdown could be redesigned to properly handle those cases. > > On 25/02/2015 15:18, [email protected] wrote: >> Full_Name: Leonid Yuriev >> Version: 2.4-HEAD >> OS: RHEL7 >> URL: ftp://ftp.openldap.org/incoming/ >> Submission from: (NULL) (31.130.36.33) >> >> >> Monitor-backend shutdown code could call a callback from registered subsystem >> after it is already destroyed. >> >> For instance, currently ldap-backend frees its own registered context >> (lmi_mss >> from ldap_monitor_info_t) before than monitor_back_db_destroy() will be >> called. >> >> Therefore SIGSEGV would be occur on monitor shutdown if any ldap-backend >> database is configured and such freed context will be overwrited. >> >> This bug could be reproduced by a filling-memory-with-non-zero before calling >> free() from glibc. >> >> >> > > -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/
