[asterisk-bugs] [JIRA] (ASTERISK-29981) res_calendar: Asterisk crashes when starting, and will not run

[N A (JIRA)]

N A created ASTERISK-29981:
------------------------------

             Summary: res_calendar: Asterisk crashes when starting, and will not run
                 Key: ASTERISK-29981
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-29981
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Resources/res_calendar
    Affects Versions: 18.9.0
            Reporter: N A
            Severity: Major


Asterisk has been crashing every 5 minutes for the last 3 hours. I have a script that starts it up every 5 minutes, except it crashes when started. Effectively, Asterisk will no longer run.

Backtrace when starting:

[2022-03-22 15:26:24] WARNING[29884]: sched.c:497 sched_settime: Bug likely: Negative time interval -55584000 (interpreted as 4239383296 ms) requested!
[2022-03-22 15:26:24] ERROR[29884]: sched.c:500 sched_settime: FRACK!, Failed assertion 0 (0)
[2022-03-22 15:26:25] ERROR[29884]:   Got 14 backtrace records
# 0: asterisk __ast_assert_failed()
# 1: asterisk <unknown>()
# 2: asterisk <unknown>()
# 3: asterisk ast_sched_add_variable()
# 4: [0x7f2df0a81243] res_calendar.so res_calendar.c:1002 schedule_calendar_event()
# 5: [0x7f2df0a814a1] res_calendar.so res_calendar.c:1050 add_new_event_cb()
# 6: asterisk <unknown>()
# 7: asterisk __ao2_callback()
# 8: [0x7f2df0a8153c] res_calendar.so res_calendar.c:1061 ast_calendar_merge_events()
# 9: [0x7f2df02cec26] res_calendar_icalendar.so res_calendar_icalendar.c:383 icalendar_update_events()
#10: [0x7f2df02cf769] res_calendar_icalendar.so res_calendar_icalendar.c:483 ical_load_calendar()
#11: asterisk <unknown>()
#12: [0x7f2e02b38fa3] libpthread.so.0 pthread_create.c:487 start_thread()
#13: [0x7f2e025cc4cf] libc.so.6 clone.S:97 clone()

Backtrace from ast_coredumper:

This is the first time I have had an issue where Asterisk itself does not start. res_calendar causes a crash as soon as it gets loaded.

If I add noload = res_calendar to modules.conf, Asterisk starts, but now production is impaired and operating significantly degraded.



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