Version-Release number of selected component: evolution-data-server-3.24.6-1.fc26 Additional info: reporter: libreport-2.9.1 backtrace_rating: 4 cmdline: /usr/libexec/evolution-calendar-factory-subprocess --factory ews --bus-name org.gnome.evolution.dataserver.Subprocess.Backend.Calendarx2366x3 --own-path /org/gnome/evolution/dataserver/Subprocess/Backend/Calendar/2366/3 crash_function: signal_lookup_closure executable: /usr/libexec/evolution-calendar-factory-subprocess journald_cursor: s=e685d5d5bf094855a02b56d272cfd613;i=70c3;b=5c87e552ab7e489ab6bb4bd96f3c2fc0;m=7140591e;t=55acba62f7115;x=e6e68941c94c8ef2 kernel: 4.12.14-300.fc26.x86_64 rootdir: / runlevel: N 5 type: CCpp uid: 1000 Truncated backtrace: Thread no. 1 (4 frames) #0 signal_lookup_closure at gsignal.c:1556 #4 e_gdbus_cal_view_emit_objects_added at /usr/src/debug/evolution-data-server-3.24.6/src/calendar/libegdbus/e-gdbus-cal-view.c:291 #5 send_pending_adds at /usr/src/debug/evolution-data-server-3.24.6/src/calendar/libedata-cal/e-data-cal-view.c:652 #6 pending_flush_timeout_cb at /usr/src/debug/evolution-data-server-3.24.6/src/calendar/libedata-cal/e-data-cal-view.c:692
Created attachment 1334774 [details] File: backtrace
Created attachment 1334775 [details] File: cgroup
Created attachment 1334776 [details] File: core_backtrace
Created attachment 1334777 [details] File: cpuinfo
Created attachment 1334778 [details] File: dso_list
Created attachment 1334779 [details] File: environ
Created attachment 1334780 [details] File: exploitable
Created attachment 1334781 [details] File: limits
Created attachment 1334782 [details] File: maps
Created attachment 1334783 [details] File: open_fds
Created attachment 1334784 [details] File: proc_pid_status
Created attachment 1334785 [details] File: var_log_messages
Thanks for a bug report. I see from the backtrace that the crash happened due to one thread being notifying about changes in one calendar view, while another thread had been freeing this view, thus the thread doing notifications had freed structures while it had been still using them. I fixed it upstream, also for the address book part, with: Created commit 695a5effa in eds master (3.27.1+) [1] Created commit ebc99af05 in eds gnome-3-26 (3.26.2+) [1] https://git.gnome.org/browse/evolution-data-server/commit/?id=695a5effa