# gdb ./systemd-timesyncd
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Reading symbols from ./systemd-timesyncd...done.
(gdb) run
Starting program: /home/dcoppa/Arch/hacking/systemd/src/systemd-216/systemd-timesyncd 
warning: Could not load shared library symbols for linux-vdso.so.1.
Do you need "set solib-search-path" or "set sysroot"?
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7ffff30ce700 (LWP 8878)]
Using NTP server 193.204.114.105:123 (193.204.114.105).

Program received signal SIGSEGV, Segmentation fault.
0x0000555555571b3d in manager_connect (m=m@entry=0x61400000fc40) at src/timesync/timesyncd-manager.c:903
903	                r = sd_resolve_getaddrinfo(m->resolve, &m->resolve_query, m->current_server_name->string, "123", &hints, manager_resolve_handler, m);
(gdb) bt
#0  0x0000555555571b3d in manager_connect (m=m@entry=0x61400000fc40) at src/timesync/timesyncd-manager.c:903
#1  0x00005555555885ee in manager_send_request.lto_priv.92 (m=m@entry=0x61400000fc40) at src/timesync/timesyncd-manager.c:203
#2  0x000055555557ce89 in manager_begin.lto_priv.90 (m=m@entry=0x61400000fc40) at src/timesync/timesyncd-manager.c:734
#3  0x0000555555573330 in manager_resolve_handler (q=<optimized out>, ret=<optimized out>, ai=0x0, userdata=0x61400000fc40) at src/timesync/timesyncd-manager.c:818
#4  0x0000555555574a6c in res_query_done (q=<optimized out>) at src/libsystemd/sd-resolve/sd-resolve.c:1265
#5  complete_query (resolve=resolve@entry=0x61d00001ea80, q=0x60b00000ae30) at src/libsystemd/sd-resolve/sd-resolve.c:768
#6  0x000055555557575b in handle_response (length=<optimized out>, packet=<optimized out>, resolve=<optimized out>) at src/libsystemd/sd-resolve/sd-resolve.c:956
#7  sd_resolve_process (resolve=<optimized out>) at src/libsystemd/sd-resolve/sd-resolve.c:990
#8  0x0000555555577951 in io_callback.lto_priv.96 (s=<optimized out>, fd=<optimized out>, revents=<optimized out>, userdata=<optimized out>) at src/libsystemd/sd-resolve/sd-resolve.c:1380
#9  0x000055555556c4fa in source_dispatch.lto_priv.60 (s=0x611000009c80) at src/libsystemd/sd-event/sd-event.c:2035
#10 0x0000555555586450 in sd_event_run.constprop.32 (e=0x61500000fd00, timeout=<optimized out>) at src/libsystemd/sd-event/sd-event.c:2333
#11 0x0000555555565f75 in sd_event_loop (e=<optimized out>) at src/libsystemd/sd-event/sd-event.c:2352
#12 main (argc=<optimized out>, argv=<optimized out>) at src/timesync/timesyncd.c:143
(gdb) bt full
#0  0x0000555555571b3d in manager_connect (m=m@entry=0x61400000fc40) at src/timesync/timesyncd-manager.c:903
        r = <optimized out>
        __PRETTY_FUNCTION__ = "manager_connect"
        __func__ = "manager_connect"
#1  0x00005555555885ee in manager_send_request.lto_priv.92 (m=m@entry=0x61400000fc40) at src/timesync/timesyncd-manager.c:203
        len = <optimized out>
        r = <optimized out>
        __PRETTY_FUNCTION__ = "manager_send_request"
        __func__ = "manager_send_request"
#2  0x000055555557ce89 in manager_begin.lto_priv.90 (m=m@entry=0x61400000fc40) at src/timesync/timesyncd-manager.c:734
        r = 0
        __PRETTY_FUNCTION__ = "manager_begin"
        __func__ = "manager_begin"
#3  0x0000555555573330 in manager_resolve_handler (q=<optimized out>, ret=<optimized out>, ai=0x0, userdata=0x61400000fc40) at src/timesync/timesyncd-manager.c:818
        m = 0x61400000fc40
        __PRETTY_FUNCTION__ = "manager_resolve_handler"
        __func__ = "manager_resolve_handler"
#4  0x0000555555574a6c in res_query_done (q=<optimized out>) at src/libsystemd/sd-resolve/sd-resolve.c:1265
No locals.
#5  complete_query (resolve=resolve@entry=0x61d00001ea80, q=0x60b00000ae30) at src/libsystemd/sd-resolve/sd-resolve.c:768
        r = <optimized out>
        __PRETTY_FUNCTION__ = "complete_query"
#6  0x000055555557575b in handle_response (length=<optimized out>, packet=<optimized out>, resolve=<optimized out>) at src/libsystemd/sd-resolve/sd-resolve.c:956
        res_resp = <optimized out>
        resp = <optimized out>
#7  sd_resolve_process (resolve=<optimized out>) at src/libsystemd/sd-resolve/sd-resolve.c:990
        _dont_destroy_resolve = 0x61d00001ea80
        __PRETTY_FUNCTION__ = "sd_resolve_process"
#8  0x0000555555577951 in io_callback.lto_priv.96 (s=<optimized out>, fd=<optimized out>, revents=<optimized out>, userdata=<optimized out>) at src/libsystemd/sd-resolve/sd-resolve.c:1380
        resolve = <optimized out>
        r = <optimized out>
        __PRETTY_FUNCTION__ = "io_callback"
#9  0x000055555556c4fa in source_dispatch.lto_priv.60 (s=0x611000009c80) at src/libsystemd/sd-event/sd-event.c:2035
        r = <optimized out>
        __PRETTY_FUNCTION__ = "source_dispatch"
        __func__ = "source_dispatch"
#10 0x0000555555586450 in sd_event_run.constprop.32 (e=0x61500000fd00, timeout=<optimized out>) at src/libsystemd/sd-event/sd-event.c:2333
        ev_queue = 0x7fffffffda80
        p = <optimized out>
        r = <optimized out>
        i = <optimized out>
        m = 1
        timedout = false
#11 0x0000555555565f75 in sd_event_loop (e=<optimized out>) at src/libsystemd/sd-event/sd-event.c:2352
        r = <optimized out>
#12 main (argc=<optimized out>, argv=<optimized out>) at src/timesync/timesyncd.c:143
        m = 0x61400000fc40
        user = <optimized out>
        uid = <optimized out>
        gid = <optimized out>
        r = <optimized out>
        __func__ = "main"
        __PRETTY_FUNCTION__ = "main"
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