(gdb) fr 5 #5 0x00007ffff07995f8 in icinga::Downtime::Start (this=0x7fffc4ef2a70, runtimeCreated=) at ../icinga/downtime.cpp:121 121 checkable->RegisterDowntime(this); (gdb) p *this warning: RTTI symbol not found for class 'icinga::Downtime' $1 = warning: RTTI symbol not found for class 'icinga::Downtime' {<(anonymous namespace)::ObjectImpl> = {<(anonymous namespace)::ConfigObject> = {}, m_HostName = {static NPos = , m_Data = "vps.beterhosten.com"}, m_ServiceName = {static NPos = , m_Data = "DirectAdmin"}, m_Author = {static NPos = , m_Data = "smtalk"}, m_Comment = { static NPos = , m_Data = "Scheduled downtime for backups"}, m_TriggeredBy = {static NPos = , m_Data = ""}, m_ScheduledBy = {static NPos = , m_Data = "vps.beterhosten.com!DirectAdmin!brinkhostdotcom-downtime"}, m_ConfigOwner = {static NPos = , m_Data = "vps.beterhosten.com!DirectAdmin!brinkhostdotcom-downtime"}, m_EntryTime = 1447680970.049655, m_StartTime = 1447716600, m_EndTime = 1447729200, m_TriggerTime = 0, m_Duration = 0, m_Triggers = {px = 0x7fffc4ef6ed0}, m_LegacyId = 43, m_Fixed = true, m_WasCancelled = false, static OnHostNameChanged = , static OnServiceNameChanged = , static OnAuthorChanged = , static OnCommentChanged = , static OnTriggeredByChanged = , static OnScheduledByChanged = , static OnConfigOwnerChanged = , static OnEntryTimeChanged = , static OnStartTimeChanged = , static OnEndTimeChanged = , static OnTriggerTimeChanged = , static OnDurationChanged = , static OnTriggersChanged = , static OnLegacyIdChanged = , static OnFixedChanged = , static OnWasCancelledChanged = }, static TypeInstance = , static OnDowntimeAdded = , static OnDowntimeRemoved = , static OnDowntimeTriggered = , m_Checkable = {px = 0x0}}