.
Thread 5 (Thread 0x7f8a1886b700 (LWP 12188)):
#0  0x00007f8a1b2faba9 in __GI___poll (fds=0x55e1c7bddbd0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007f8a1b455cb6 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8a1b455ddc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8a1b455e21 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f8a1b47e98d in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f8a1b3df182 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140231093696256, 8501389951031205423, 140723767956270, 140723767956271, 140723767956416, 140231093693568, -8435470718479999441, -8435462667391050193}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007f8a1b306faf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
.
Thread 4 (Thread 0x7f8a12a6d700 (LWP 13066)):
#0  0x00007f8a1b2faba9 in __GI___poll (fds=0x7f8a12a6caf0, nfds=3, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x000055e1c6973b5d in  ()
#2  0x000055e1c69747ae in  ()
#3  0x00007f8a1b47e98d in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f8a1b3df182 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140230995138304, 8501389951031205423, 140723767960110, 140723767960111, 140723767960256, 140230995135616, -8435483634520400337, -8435462667391050193}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#5  0x00007f8a1b306faf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
.
Thread 3 (Thread 0x7f8a1326e700 (LWP 12294)):
#0  0x00007f8a1b300769 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f8a1b4a0b9a in g_cond_wait_until () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8a1b4270c1 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8a1b47f492 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f8a1b47e98d in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f8a1b3df182 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140231003531008, 8501389951031205423, 140723767951502, 140723767951503, 140723767951648, 140231003528320, -8435480335448646097, -8435462667391050193}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007f8a1b306faf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
.
Thread 2 (Thread 0x7f8a13fff700 (LWP 12189)):
#0  0x00007f8a1b2faba9 in __GI___poll (fds=0x55e1c7befa80, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007f8a1b455cb6 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8a1b456042 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8a1b691c76 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f8a1b47e98d in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f8a1b3df182 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140231017756416, 8501389951031205423, 140723767956686, 140723767956687, 140723767956832, 140231017753728, -8435480826685530577, -8435462667391050193}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007f8a1b306faf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
.
Thread 1 (Thread 0x7f8a1920fa80 (LWP 12187)):
#0  0x00007f8a1b22cfb7 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
        set = {__val = {0, 140230884857744, 0, 94428215992661, 0, 7104707742358437888, 94428207188128, 0, 126, 140723767959360, 94428215992660, 140723767959352, 127, 140231140029295, 126, 140723767959408}}
        pid = <optimized out>
        tid = <optimized out>
#1  0x00007f8a1b20e535 in __GI_abort () at abort.c:79
        save_stage = 1
        act = {__sigaction_handler = {sa_handler = 0x1, sa_sigaction = 0x1}, sa_mask = {__val = {7104707742358437888, 94428216739840, 140230884858160, 1, 140231139997858, 140231140461504, 140231140031386, 140230884858112, 7104707742358437888, 140723767959768, 140723767960040, 140230985759870, 140231139988077, 140230985759872, 140723767959696, 140723767959952}}, sa_flags = 1, sa_restorer = 0x1000}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007f8a1b2757b6 in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7f8a1b39b952 "%s\n") at ../sysdeps/posix/libc_fatal.c:181
        ap = {{gp_offset = 24, fp_offset = 32764, overflow_arg_area = 0x7ffcce3361a0, reg_save_area = 0x7ffcce336130}}
        fd = 2
        list = <optimized out>
        nlist = <optimized out>
        cp = <optimized out>
        written = <optimized out>
#3  0x00007f8a1b27c60a in malloc_printerr (str=str@entry=0x7f8a1b39d5a0 "munmap_chunk(): invalid pointer") at malloc.c:5352
#4  0x00007f8a1b27df3c in munmap_chunk (p=<optimized out>) at malloc.c:2840
        size = <optimized out>
        __PRETTY_FUNCTION__ = "munmap_chunk"
        mem = <optimized out>
        block = <optimized out>
        total_size = <optimized out>
#5  0x00007f8a12175ff8 in  () at /usr/lib/x86_64-linux-gnu/modem-manager-gui/modules/libmodmm_mm07.so
#6  0x00007f8a121783fb in mmgui_module_devices_information () at /usr/lib/x86_64-linux-gnu/modem-manager-gui/modules/libmodmm_mm07.so
#7  0x000055e1c69731fc in mmguicore_devices_open ()
#8  0x000055e1c6984fd6 in  ()
#9  0x000055e1c699307e in  ()
#10 0x000055e1c6970700 in mmgui_svcmanager_start_services_activation ()
#11 0x000055e1c6975ffd in mmguicore_start ()
#12 0x00007f8a1b53be7d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#13 0x00007f8a1b54f535 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#14 0x00007f8a1b55846e in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#15 0x00007f8a1b558b2f in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#16 0x00007f8a1b657678 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#17 0x00007f8a1b65782b in g_application_run () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#18 0x000055e1c6960631 in main ()