.
Thread 5 (Thread 0x7213b60006c0 (LWP 3451)):
#0  0x00007213bb38a4bd in __GI___poll (fds=0x7213a4000b90, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        sc_ret = -516
        sc_cancel_oldtype = 0
        sc_ret = <optimized out>
#1  0x00007213bb8b567e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007213bb856f87 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007213bb7449e2 in ?? () from /lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007213bb884c92 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007213bb30ba94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
        ret = <optimized out>
        pd = <optimized out>
        out = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {125428983400128, 5092494850910769795, 125428983400128, -120, 11, 140724316163792, 5092494850898186883, 5092498654241018499}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007213bb398c2c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78
No locals.
.
Thread 4 (Thread 0x7213b74006c0 (LWP 3449)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007213bb8af41d in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007213bb82052b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007213bb888053 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007213bb884c92 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007213bb30ba94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
        ret = <optimized out>
        pd = <optimized out>
        out = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {125429004371648, 5092489903108444803, 125429004371648, -120, 0, 140724316163648, 5092489903095861891, 5092498654241018499}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007213bb398c2c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78
No locals.
.
Thread 3 (Thread 0x7213b7b602c0 (LWP 3448)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007213bb8af41d in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007213bb67a98b in ?? () from /lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#3  0x00007213bb7734a7 in ?? () from /lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007213bb98d43b in ?? () from /usr/lib/x86_64-linux-gnu/tracker-miners-3.0/libtracker-miner-3.0.so
No symbol table info available.
#5  0x00007213bb993ffd in tracker_content_identifier_cache_init () from /usr/lib/x86_64-linux-gnu/tracker-miners-3.0/libtracker-miner-3.0.so
No symbol table info available.
#6  0x000055f59920f13e in main ()
No symbol table info available.
.
Thread 2 (Thread 0x7213b56006c0 (LWP 3452)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
No locals.
#1  0x00007213bb8af2da in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007213bb88a419 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007213bb884c92 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007213bb30ba94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
        ret = <optimized out>
        pd = <optimized out>
        out = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {125428972914368, 5092494026277048963, 125428972914368, -120, 0, 125429004365888, 5092494026264466051, 5092498654241018499}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007213bb398c2c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78
No locals.
.
Thread 1 (Thread 0x7213b6a006c0 (LWP 3450)):
#0  0x00007213bb399032 in epoll_wait (epfd=7, events=0x7213b69ff11c, maxevents=1, timeout=0) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
        sc_ret = 232
        sc_cancel_oldtype = 0
        sc_ret = <optimized out>
#1  0x00007213ba98b03c in ?? () from /lib/x86_64-linux-gnu/libmount.so.1
No symbol table info available.
#2  0x00007213ba98ba0e in mnt_monitor_get_fd () from /lib/x86_64-linux-gnu/libmount.so.1
No symbol table info available.
#3  0x00007213bb6fbfd7 in ?? () from /lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007213bb678295 in ?? () from /lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#5  0x00007213bb85649e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#6  0x00007213bb8b5727 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#7  0x00007213bb855a63 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#8  0x00007213bb855ab9 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#9  0x00007213bb884c92 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#10 0x00007213bb30ba94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447
        ret = <optimized out>
        pd = <optimized out>
        out = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {125428993885888, 5092493476521235075, 125428993885888, -120, 0, 140724316163440, 5092493476508652163, 5092498654241018499}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#11 0x00007213bb398c2c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78
No locals.