.
Thread 4 (Thread 0x7f113db1f700 (LWP 4161)):
#0  sem_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:85
No locals.
#1  0x000000000062c1b7 in mono_sem_wait (sem=sem@entry=0x97d3c0 <finalizer_sem>, alertable=alertable@entry=1) at mono-semaphore.c:116
        res = <optimized out>
#2  0x00000000005a8445 in finalizer_thread (unused=unused@entry=0x0) at gc.c:1073
No locals.
#3  0x000000000058b33b in start_wrapper_internal (data=0x27af0a0) at threads.c:609
        info = <optimized out>
        start_arg = 0x0
        tid = 139712026244864
        start_delegate = 0x0
        domain = <optimized out>
        start_info = 0x27af0a0
        start_func = 0x5a83b0 <finalizer_thread>
        internal = 0x7f113dd0fe98
#4  start_wrapper (data=0x27af0a0) at threads.c:654
        dummy = 32529
#5  0x0000000000620c1d in thread_start_routine (args=args@entry=0x2738c90) at wthreads.c:294
        thread = 0x2738c90
        thr_ret = <optimized out>
#6  0x0000000000630975 in inner_start_thread (arg=0x27aef90) at mono-threads-posix.c:49
        start_info = 0x27aef90
        t_arg = 0x2738c90
        post_result = <optimized out>
        start_func = 0x620bd0 <thread_start_routine>
        result = 0x7f113db1f700
#7  0x00007f114095d182 in start_thread (arg=0x7f113db1f700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7f113db1f700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139712026244864, -7924394118811962549, 0, 0, 139712026245568, 139712026244864, 7792527987903345483, 7792463908154815307}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0x00007f1140688b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 3 (Thread 0x7f112ec0f700 (LWP 4163)):
#0  0x00007f114067b74d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f113c481d34 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f113c48205a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f113433fe06 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007f113c4a6c55 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f114095d182 in start_thread (arg=0x7f112ec0f700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7f112ec0f700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139711775569664, -7924394118811962549, 0, 0, 139711775570368, 139711775569664, 7792555604543058763, 7792463908154815307}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007f1140688b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 2 (Thread 0x7f112f410700 (LWP 4162)):
#0  0x00007f114067b74d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f113c481d34 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f113c481e3c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f112fa9615d in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
No symbol table info available.
#4  0x00007f113c4a6c55 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f114095d182 in start_thread (arg=0x7f112f410700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7f112f410700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139711783962368, -7924394118811962549, 0, 0, 139711783963072, 139711783962368, 7792558903614813003, 7792463908154815307}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007f1140688b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 1 (Thread 0x7f114147d7c0 (LWP 4157)):
#0  0x00007f11405c4f39 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        resultvar = 0
        pid = 4157
        selftid = 4157
#1  0x00007f11405c8348 in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {16, 4157, 139712084399159, 139710991171589, 0, 23, 139712070765864, 4164, 4157, 6625838, 139712084427765, 0, 18446744073709551615, 0, 139712086471104, 6}}, sa_flags = 0, sa_restorer = 0x3d3d3d3d3d3d3d3d}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00000000004b5316 in mono_handle_native_sigsegv (signal=signal@entry=11, ctx=ctx@entry=0x7f114148fc40) at mini-exceptions.c:2380
        sa = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {0 <repeats 16 times>}}, sa_flags = 0, sa_restorer = 0x0}
        jit_tls = <optimized out>
        signal_str = 0x651a2e "SIGSEGV"
#3  0x000000000050c21b in mono_arch_handle_altstack_exception (sigctx=sigctx@entry=0x7f114148fc40, fault_addr=<optimized out>, stack_ovf=stack_ovf@entry=0) at exceptions-amd64.c:921
        exc = <optimized out>
        ctx = 0x7f114148fc40
        ji = 0x0
        sp = <optimized out>
        frame_size = <optimized out>
        copied_ctx = <optimized out>
#4  0x00000000004236b2 in mono_sigsegv_signal_handler (_dummy=11, info=0x7f114148fd70, context=0x7f114148fc40) at mini.c:6591
        ji = 0x0
        jit_tls = 0x27aea00
        fault_addr = <optimized out>
        ctx = 0x7f114148fc40
#5  <signal handler called>
No locals.
#6  0x00007f113c77c5ba in ?? () from /usr/lib/libgdiplus.so.0
No symbol table info available.
#7  0x00007f113c75f67a in GdipLoadImageFromFile () from /usr/lib/libgdiplus.so.0
No symbol table info available.
#8  0x00000000412b302e in ?? ()
No symbol table info available.
#9  0x00000000027aaa90 in ?? ()
No symbol table info available.
#10 0x00007f113f00a658 in ?? ()
No symbol table info available.
#11 0x00007f113f00a658 in ?? ()
No symbol table info available.
#12 0x00007f113f3cb7b0 in ?? ()
No symbol table info available.
#13 0x00000000ffffff18 in ?? ()
No symbol table info available.
#14 0x00007fff948ef8e0 in ?? ()
No symbol table info available.
#15 0x00007fff948ef7f0 in ?? ()
No symbol table info available.
#16 0x00007f113f00a658 in ?? ()
No symbol table info available.
#17 0x00007f113f00a658 in ?? ()
No symbol table info available.
#18 0x00007f113f3cb7b0 in ?? ()
No symbol table info available.
#19 0x00007f113f3cb7b0 in ?? ()
No symbol table info available.
#20 0x00000000412b2f6c in ?? ()
No symbol table info available.
#21 0x00007f113f00a658 in ?? ()
No symbol table info available.
#22 0x00007f113f229e18 in ?? ()
No symbol table info available.
#23 0x0000000000000000 in ?? ()
No symbol table info available.