this is darktable 2.2.2 reporting a segfault:

#0  0x00007f616e8c248d in poll () at /usr/lib/libc.so.6
#1  0x00007f61647e18e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f61647e339f in  () at /usr/lib/libxcb.so.1
#3  0x00007f61647e3511 in xcb_wait_for_reply64 () at /usr/lib/libxcb.so.1
#4  0x00007f61680434e8 in _XReply () at /usr/lib/libX11.so.6
#5  0x00007f6167dfc917 in XIQueryPointer () at /usr/lib/libXi.so.6
#6  0x00007f616d61f861 in  () at /usr/lib/libgdk-3.so.0
#7  0x00007f616d63cdc5 in  () at /usr/lib/libgdk-3.so.0
#8  0x00007f616d6105db in gdk_window_get_device_position_double () at /usr/lib/libgdk-3.so.0
#9  0x00007f616d6106dd in gdk_window_get_device_position () at /usr/lib/libgdk-3.so.0
#10 0x00007f616ee84991 in dt_control_expose () at /usr/lib/libdarktable.so
#11 0x00007f616ef12cc0 in  () at /usr/lib/libdarktable.so
#12 0x00007f616daeba61 in  () at /usr/lib/libgtk-3.so.0
#13 0x00007f616dc35d8f in  () at /usr/lib/libgtk-3.so.0
#14 0x00007f616c6421a4 in  () at /usr/lib/libgobject-2.0.so.0
#15 0x00007f616c65c391 in g_signal_emit_valist () at /usr/lib/libgobject-2.0.so.0
#16 0x00007f616c65cfaf in g_signal_emit () at /usr/lib/libgobject-2.0.so.0
#17 0x00007f616dc42c1a in  () at /usr/lib/libgtk-3.so.0
#18 0x00007f616da26680 in gtk_container_propagate_draw () at /usr/lib/libgtk-3.so.0
#19 0x00007f616da26762 in  () at /usr/lib/libgtk-3.so.0
#20 0x00007f616d9d8964 in  () at /usr/lib/libgtk-3.so.0
#21 0x00007f616da2b6bd in  () at /usr/lib/libgtk-3.so.0
#22 0x00007f616da30500 in  () at /usr/lib/libgtk-3.so.0
#23 0x00007f616d9db3d1 in  () at /usr/lib/libgtk-3.so.0
#24 0x00007f616dc429fb in  () at /usr/lib/libgtk-3.so.0
#25 0x00007f616da26680 in gtk_container_propagate_draw () at /usr/lib/libgtk-3.so.0
#26 0x00007f616da26762 in  () at /usr/lib/libgtk-3.so.0
#27 0x00007f616daa7184 in  () at /usr/lib/libgtk-3.so.0
#28 0x00007f616da2b6bd in  () at /usr/lib/libgtk-3.so.0
#29 0x00007f616da30500 in  () at /usr/lib/libgtk-3.so.0
#30 0x00007f616daa8261 in  () at /usr/lib/libgtk-3.so.0
#31 0x00007f616dc429fb in  () at /usr/lib/libgtk-3.so.0
#32 0x00007f616da26680 in gtk_container_propagate_draw () at /usr/lib/libgtk-3.so.0
#33 0x00007f616da26762 in  () at /usr/lib/libgtk-3.so.0
#34 0x00007f616d9d8964 in  () at /usr/lib/libgtk-3.so.0
#35 0x00007f616da2b6bd in  () at /usr/lib/libgtk-3.so.0
#36 0x00007f616da30500 in  () at /usr/lib/libgtk-3.so.0
#37 0x00007f616d9db3d1 in  () at /usr/lib/libgtk-3.so.0
#38 0x00007f616dc429fb in  () at /usr/lib/libgtk-3.so.0
#39 0x00007f616da26680 in gtk_container_propagate_draw () at /usr/lib/libgtk-3.so.0
#40 0x00007f616da26762 in  () at /usr/lib/libgtk-3.so.0
#41 0x00007f616dc50781 in  () at /usr/lib/libgtk-3.so.0
#42 0x00007f616dc429fb in  () at /usr/lib/libgtk-3.so.0
#43 0x00007f616dc4bcf8 in  () at /usr/lib/libgtk-3.so.0
#44 0x00007f616daeaa7a in gtk_main_do_event () at /usr/lib/libgtk-3.so.0
#45 0x00007f616d5fcd15 in  () at /usr/lib/libgdk-3.so.0
#46 0x00007f616d60d3a8 in  () at /usr/lib/libgdk-3.so.0
#47 0x00007f616d60e5a6 in  () at /usr/lib/libgdk-3.so.0
#48 0x00007f616d60e7a4 in  () at /usr/lib/libgdk-3.so.0
#49 0x00007f616c641f75 in g_closure_invoke () at /usr/lib/libgobject-2.0.so.0
#50 0x00007f616c653f82 in  () at /usr/lib/libgobject-2.0.so.0
#51 0x00007f616c65cbcc in g_signal_emit_valist () at /usr/lib/libgobject-2.0.so.0
#52 0x00007f616c65cfaf in g_signal_emit () at /usr/lib/libgobject-2.0.so.0
#53 0x00007f616d6063e9 in  () at /usr/lib/libgdk-3.so.0
#54 0x00007f616d5f15e8 in  () at /usr/lib/libgdk-3.so.0
#55 0x00007f616e216eb3 in  () at /usr/lib/libglib-2.0.so.0
#56 0x00007f616e21643a in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#57 0x00007f616e2167f0 in  () at /usr/lib/libglib-2.0.so.0
#58 0x00007f616e216b12 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#59 0x00007f616dae9c65 in gtk_main () at /usr/lib/libgtk-3.so.0
#60 0x00007f616ef1561c in dt_gui_gtk_run () at /usr/lib/libdarktable.so
#61 0x0000000000400750 in main ()

Thread 23 (Thread 0x7f6116de5700 (LWP 13350)):
#0  0x00007f61687e357e in futex_wait (val=296, addr=0x7f613c007e54) at /build/gcc/src/gcc/libgomp/config/linux/x86/futex.h:44
        res = -512
        r10 = 0
        val = 296
        addr = 0x7f613c007e54
#1  0x00007f61687e357e in do_wait (val=296, addr=0x7f613c007e54) at /build/gcc/src/gcc/libgomp/config/linux/wait.h:67
        val = 296
        addr = 0x7f613c007e54
#2  0x00007f61687e357e in gomp_barrier_wait_end (bar=0x7f613c007e50, state=296) at /build/gcc/src/gcc/libgomp/config/linux/bar.c:48
#3  0x00007f61687e0d80 in gomp_thread_start (xdata=<optimized out>) at /build/gcc/src/gcc/libgomp/team.c:123
        team = 0x7f613c007ee0
        task = 0x7f613c008690
        data = <optimized out>
        pool = 0x7f613c007e10
        local_fn = 0x7f6128610030
        local_data = 0x7f614bffe2a0
#4  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 22 (Thread 0x7f61175e6700 (LWP 13349)):
#0  0x00007f61687e357e in futex_wait (val=296, addr=0x7f613c007e54) at /build/gcc/src/gcc/libgomp/config/linux/x86/futex.h:44
        res = -512
        r10 = 0
        val = 296
        addr = 0x7f613c007e54
#1  0x00007f61687e357e in do_wait (val=296, addr=0x7f613c007e54) at /build/gcc/src/gcc/libgomp/config/linux/wait.h:67
        val = 296
        addr = 0x7f613c007e54
#2  0x00007f61687e357e in gomp_barrier_wait_end (bar=0x7f613c007e50, state=296) at /build/gcc/src/gcc/libgomp/config/linux/bar.c:48
#3  0x00007f61687e0d80 in gomp_thread_start (xdata=<optimized out>) at /build/gcc/src/gcc/libgomp/team.c:123
        team = 0x7f613c007ee0
        task = 0x7f613c0085c0
        data = <optimized out>
        pool = 0x7f613c007e10
        local_fn = 0x7f6128610030
        local_data = 0x7f614bffe2a0
#4  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 21 (Thread 0x7f6117de7700 (LWP 13348)):
#0  0x00007f61687e357e in futex_wait (val=296, addr=0x7f613c007e54) at /build/gcc/src/gcc/libgomp/config/linux/x86/futex.h:44
        res = -512
        r10 = 0
        val = 296
        addr = 0x7f613c007e54
#1  0x00007f61687e357e in do_wait (val=296, addr=0x7f613c007e54) at /build/gcc/src/gcc/libgomp/config/linux/wait.h:67
        val = 296
        addr = 0x7f613c007e54
#2  0x00007f61687e357e in gomp_barrier_wait_end (bar=0x7f613c007e50, state=296) at /build/gcc/src/gcc/libgomp/config/linux/bar.c:48
#3  0x00007f61687e0d80 in gomp_thread_start (xdata=<optimized out>) at /build/gcc/src/gcc/libgomp/team.c:123
        team = 0x7f613c007ee0
        task = 0x7f613c0084f0
        data = <optimized out>
        pool = 0x7f613c007e10
        local_fn = 0x7f6128610030
        local_data = 0x7f614bffe2a0
#4  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 20 (Thread 0x7f60f1371700 (LWP 13346)):
#0  0x00007f616e8c6f19 in syscall () at /usr/lib/libc.so.6
#1  0x00007f616e25c03a in g_cond_wait_until () at /usr/lib/libglib-2.0.so.0
#2  0x00007f616e1eae89 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f616e1eb4ac in g_async_queue_timeout_pop () at /usr/lib/libglib-2.0.so.0
#4  0x00007f616e23eb9d in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f616e23e0d5 in  () at /usr/lib/libglib-2.0.so.0
#6  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 19 (Thread 0x7f60bd03e700 (LWP 13344)):
#0  0x00007f61687e357e in futex_wait (val=272, addr=0x7f614403c714) at /build/gcc/src/gcc/libgomp/config/linux/x86/futex.h:44
        res = -512
        r10 = 0
        val = 272
        addr = 0x7f614403c714
#1  0x00007f61687e357e in do_wait (val=272, addr=0x7f614403c714) at /build/gcc/src/gcc/libgomp/config/linux/wait.h:67
        val = 272
        addr = 0x7f614403c714
#2  0x00007f61687e357e in gomp_barrier_wait_end (bar=0x7f614403c710, state=272) at /build/gcc/src/gcc/libgomp/config/linux/bar.c:48
#3  0x00007f61687e0d80 in gomp_thread_start (xdata=<optimized out>) at /build/gcc/src/gcc/libgomp/team.c:123
        team = 0x7f614403c7a0
        task = 0x7f614403cf50
        data = <optimized out>
        pool = 0x7f614403c6d0
        local_fn = 0x7f616ee55830
        local_data = 0x7f61591b94a0
#4  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 18 (Thread 0x7f60bd83f700 (LWP 13343)):
#0  0x00007f61687e357e in futex_wait (val=272, addr=0x7f614403c714) at /build/gcc/src/gcc/libgomp/config/linux/x86/futex.h:44
        res = -512
        r10 = 0
        val = 272
        addr = 0x7f614403c714
#1  0x00007f61687e357e in do_wait (val=272, addr=0x7f614403c714) at /build/gcc/src/gcc/libgomp/config/linux/wait.h:67
        val = 272
        addr = 0x7f614403c714
#2  0x00007f61687e357e in gomp_barrier_wait_end (bar=0x7f614403c710, state=272) at /build/gcc/src/gcc/libgomp/config/linux/bar.c:48
#3  0x00007f61687e0d80 in gomp_thread_start (xdata=<optimized out>) at /build/gcc/src/gcc/libgomp/team.c:123
        team = 0x7f614403c7a0
        task = 0x7f614403ce80
        data = <optimized out>
        pool = 0x7f614403c6d0
        local_fn = 0x7f616ee55830
        local_data = 0x7f61591b94a0
#4  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7f60be040700 (LWP 13342)):
#0  0x00007f61687e357e in futex_wait (val=272, addr=0x7f614403c714) at /build/gcc/src/gcc/libgomp/config/linux/x86/futex.h:44
        res = -512
        r10 = 0
        val = 272
        addr = 0x7f614403c714
#1  0x00007f61687e357e in do_wait (val=272, addr=0x7f614403c714) at /build/gcc/src/gcc/libgomp/config/linux/wait.h:67
        val = 272
        addr = 0x7f614403c714
#2  0x00007f61687e357e in gomp_barrier_wait_end (bar=0x7f614403c710, state=272) at /build/gcc/src/gcc/libgomp/config/linux/bar.c:48
#3  0x00007f61687e0d80 in gomp_thread_start (xdata=<optimized out>) at /build/gcc/src/gcc/libgomp/team.c:123
        team = 0x7f614403c7a0
        task = 0x7f614403cdb0
        data = <optimized out>
        pool = 0x7f614403c6d0
        local_fn = 0x7f616ee55830
        local_data = 0x7f61591b94a0
#4  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7f60bf841700 (LWP 13341)):
#0  0x00007f616e8c248d in poll () at /usr/lib/libc.so.6
#1  0x00007f60f074bee1 in  () at /usr/lib/libpulse.so.0
#2  0x00007f60f073d6f1 in pa_mainloop_poll () at /usr/lib/libpulse.so.0
#3  0x00007f60f073dd8e in pa_mainloop_iterate () at /usr/lib/libpulse.so.0
#4  0x00007f60f073de40 in pa_mainloop_run () at /usr/lib/libpulse.so.0
#5  0x00007f60f074be29 in  () at /usr/lib/libpulse.so.0
#6  0x00007f60f04e9fe8 in  () at /usr/lib/pulseaudio/libpulsecommon-10.0.so
#7  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7f60f1b72700 (LWP 13339)):
#0  0x00007f616e8c248d in poll () at /usr/lib/libc.so.6
#1  0x00007f616e216786 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f616e216b12 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#3  0x00007f616ef48474 in  () at /usr/lib/libdarktable.so
#4  0x00007f616e23e0d5 in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7f6122fce700 (LWP 13338)):
#0  0x00007f61687e357e in futex_wait (val=1112, addr=0x1fc9bc4) at /build/gcc/src/gcc/libgomp/config/linux/x86/futex.h:44
        res = -512
        r10 = 0
        val = 1112
        addr = 0x1fc9bc4
#1  0x00007f61687e357e in do_wait (val=1112, addr=0x1fc9bc4) at /build/gcc/src/gcc/libgomp/config/linux/wait.h:67
        val = 1112
        addr = 0x1fc9bc4
#2  0x00007f61687e357e in gomp_barrier_wait_end (bar=0x1fc9bc0, state=1112) at /build/gcc/src/gcc/libgomp/config/linux/bar.c:48
#3  0x00007f61687e0d80 in gomp_thread_start (xdata=<optimized out>) at /build/gcc/src/gcc/libgomp/team.c:123
        team = 0x1fc9c50
        task = 0x1fca400
        data = <optimized out>
        pool = 0x1fc9b80
        local_fn = 0x7f616ef3a370
        local_data = 0x7ffcfa30c660
#4  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f61237cf700 (LWP 13337)):
#0  0x00007f61687e357e in futex_wait (val=1112, addr=0x1fc9bc4) at /build/gcc/src/gcc/libgomp/config/linux/x86/futex.h:44
        res = -512
        r10 = 0
        val = 1112
        addr = 0x1fc9bc4
#1  0x00007f61687e357e in do_wait (val=1112, addr=0x1fc9bc4) at /build/gcc/src/gcc/libgomp/config/linux/wait.h:67
        val = 1112
        addr = 0x1fc9bc4
#2  0x00007f61687e357e in gomp_barrier_wait_end (bar=0x1fc9bc0, state=1112) at /build/gcc/src/gcc/libgomp/config/linux/bar.c:48
#3  0x00007f61687e0d80 in gomp_thread_start (xdata=<optimized out>) at /build/gcc/src/gcc/libgomp/team.c:123
        team = 0x1fc9c50
        task = 0x1fca330
        data = <optimized out>
        pool = 0x1fc9b80
        local_fn = 0x7f616ef3a370
        local_data = 0x7ffcfa30c660
#4  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f6123fd0700 (LWP 13336)):
#0  0x00007f61687e357e in futex_wait (val=1112, addr=0x1fc9bc4) at /build/gcc/src/gcc/libgomp/config/linux/x86/futex.h:44
        res = -512
        r10 = 0
        val = 1112
        addr = 0x1fc9bc4
#1  0x00007f61687e357e in do_wait (val=1112, addr=0x1fc9bc4) at /build/gcc/src/gcc/libgomp/config/linux/wait.h:67
        val = 1112
        addr = 0x1fc9bc4
#2  0x00007f61687e357e in gomp_barrier_wait_end (bar=0x1fc9bc0, state=1112) at /build/gcc/src/gcc/libgomp/config/linux/bar.c:48
#3  0x00007f61687e0d80 in gomp_thread_start (xdata=<optimized out>) at /build/gcc/src/gcc/libgomp/team.c:123
        team = 0x1fc9c50
        task = 0x1fca260
        data = <optimized out>
        pool = 0x1fc9b80
        local_fn = 0x7f616ef3a370
        local_data = 0x7ffcfa30c660
#4  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f61247d1700 (LWP 13335)):
#0  0x00007f616eb91afb in waitpid () at /usr/lib/libpthread.so.0
#1  0x00007f616ee72590 in  () at /usr/lib/libdarktable.so
#2  0x00007f616e8160b0 in <signal handler called> () at /usr/lib/libc.so.6
#3  0x00007f616ee9d996 in  () at /usr/lib/libdarktable.so
#4  0x00007f61687e0da6 in gomp_thread_start (xdata=<optimized out>) at /build/gcc/src/gcc/libgomp/team.c:119
        team = 0x7f61500370a0
        task = 0x7f6150037850
        data = <optimized out>
        pool = 0x7f6150036fd0
        local_fn = 0x7f616ee9d370
        local_data = 0x7f61599bc350
#5  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f6124fd2700 (LWP 13334)):
#0  0x00007f61687e3741 in futex_wait (val=296, addr=0x7f6150037124) at /build/gcc/src/gcc/libgomp/config/linux/x86/futex.h:44
        res = -512
        r10 = 0
        val = 296
        addr = 0x7f6150037124
        generation = 296
        gen = <optimized out>
#1  0x00007f61687e3741 in do_wait (val=296, addr=0x7f6150037124) at /build/gcc/src/gcc/libgomp/config/linux/wait.h:67
        val = 296
        addr = 0x7f6150037124
        generation = 296
        gen = <optimized out>
#2  0x00007f61687e3741 in gomp_team_barrier_wait_end (bar=0x7f6150037120, state=296) at /build/gcc/src/gcc/libgomp/config/linux/bar.c:112
        generation = 296
        gen = <optimized out>
#3  0x00007f61687e0db2 in gomp_thread_start (xdata=<optimized out>) at /build/gcc/src/gcc/libgomp/team.c:120
        team = 0x7f61500370a0
        task = 0x7f6150037780
        data = <optimized out>
        pool = 0x7f6150036fd0
        local_fn = 0x7f616ee9d370
        local_data = 0x7f61599bc350
#4  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f614267f700 (LWP 13333)):
#0  0x00007f61687e3741 in futex_wait (val=296, addr=0x7f6150037124) at /build/gcc/src/gcc/libgomp/config/linux/x86/futex.h:44
        res = -512
        r10 = 0
        val = 296
        addr = 0x7f6150037124
        generation = 296
        gen = <optimized out>
#1  0x00007f61687e3741 in do_wait (val=296, addr=0x7f6150037124) at /build/gcc/src/gcc/libgomp/config/linux/wait.h:67
        val = 296
        addr = 0x7f6150037124
        generation = 296
        gen = <optimized out>
#2  0x00007f61687e3741 in gomp_team_barrier_wait_end (bar=0x7f6150037120, state=296) at /build/gcc/src/gcc/libgomp/config/linux/bar.c:112
        generation = 296
        gen = <optimized out>
#3  0x00007f61687e0db2 in gomp_thread_start (xdata=<optimized out>) at /build/gcc/src/gcc/libgomp/team.c:120
        team = 0x7f61500370a0
        task = 0x7f61500376b0
        data = <optimized out>
        pool = 0x7f6150036fd0
        local_fn = 0x7f616ee9d370
        local_data = 0x7f61599bc350
#4  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#5  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f6143fff700 (LWP 13328)):
#0  0x00007f616eb8e10f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f616ee8815f in  () at /usr/lib/libdarktable.so
#2  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f614bfff700 (LWP 13327)):
#0  0x00007f616eb8e10f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f616ee8815f in  () at /usr/lib/libdarktable.so
#2  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f61589bc700 (LWP 13326)):
#0  0x00007f616e89affd in nanosleep () at /usr/lib/libc.so.6
#1  0x00007f616e89af4a in sleep () at /usr/lib/libc.so.6
#2  0x00007f616ee87d9a in  () at /usr/lib/libdarktable.so
#3  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f61591bd700 (LWP 13325)):
#0  0x00007f616eb8e10f in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007f616ee893be in  () at /usr/lib/libdarktable.so
#2  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#3  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f61599be700 (LWP 13324)):
#0  0x00007f61687e3741 in futex_wait (val=296, addr=0x7f6150037124) at /build/gcc/src/gcc/libgomp/config/linux/x86/futex.h:44
        res = -512
        r10 = 0
        val = 296
        addr = 0x7f6150037124
        generation = 296
        gen = <optimized out>
#1  0x00007f61687e3741 in do_wait (val=296, addr=0x7f6150037124) at /build/gcc/src/gcc/libgomp/config/linux/wait.h:67
        val = 296
        addr = 0x7f6150037124
        generation = 296
        gen = <optimized out>
#2  0x00007f61687e3741 in gomp_team_barrier_wait_end (bar=0x7f6150037120, state=296) at /build/gcc/src/gcc/libgomp/config/linux/bar.c:112
        generation = 296
        gen = <optimized out>
#3  0x00007f61687e21f9 in gomp_team_end () at /build/gcc/src/gcc/libgomp/team.c:862
        team = 0x7f61500370a0
#4  0x00007f616eea5ed2 in dt_iop_clip_and_zoom_mosaic_half_size_plain () at /usr/lib/libdarktable.so
#5  0x00007f616ee69d69 in dt_mipmap_cache_get_with_caller () at /usr/lib/libdarktable.so
#6  0x00007f616ee9009f in  () at /usr/lib/libdarktable.so
#7  0x00007f616ee887ad in  () at /usr/lib/libdarktable.so
#8  0x00007f616ee89358 in  () at /usr/lib/libdarktable.so
#9  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f615a746700 (LWP 13323)):
#0  0x00007f616e8c248d in poll () at /usr/lib/libc.so.6
#1  0x00007f616e216786 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f616e216b12 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#3  0x00007f616c94f316 in  () at /usr/lib/libgio-2.0.so.0
#4  0x00007f616e23e0d5 in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f615af47700 (LWP 13322)):
#0  0x00007f616e8c248d in poll () at /usr/lib/libc.so.6
#1  0x00007f616e216786 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f616e21689c in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007f616e2168e1 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f616e23e0d5 in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007f616eb88454 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f616e8cb7df in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f616f369a80 (LWP 13321)):
#0  0x00007f616e8c248d in poll () at /usr/lib/libc.so.6
#1  0x00007f61647e18e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f61647e339f in  () at /usr/lib/libxcb.so.1
#3  0x00007f61647e3511 in xcb_wait_for_reply64 () at /usr/lib/libxcb.so.1
#4  0x00007f61680434e8 in _XReply () at /usr/lib/libX11.so.6
#5  0x00007f6167dfc917 in XIQueryPointer () at /usr/lib/libXi.so.6
#6  0x00007f616d61f861 in  () at /usr/lib/libgdk-3.so.0
#7  0x00007f616d63cdc5 in  () at /usr/lib/libgdk-3.so.0
#8  0x00007f616d6105db in gdk_window_get_device_position_double () at /usr/lib/libgdk-3.so.0
#9  0x00007f616d6106dd in gdk_window_get_device_position () at /usr/lib/libgdk-3.so.0
#10 0x00007f616ee84991 in dt_control_expose () at /usr/lib/libdarktable.so
#11 0x00007f616ef12cc0 in  () at /usr/lib/libdarktable.so
#12 0x00007f616daeba61 in  () at /usr/lib/libgtk-3.so.0
#13 0x00007f616dc35d8f in  () at /usr/lib/libgtk-3.so.0
#14 0x00007f616c6421a4 in  () at /usr/lib/libgobject-2.0.so.0
#15 0x00007f616c65c391 in g_signal_emit_valist () at /usr/lib/libgobject-2.0.so.0
#16 0x00007f616c65cfaf in g_signal_emit () at /usr/lib/libgobject-2.0.so.0
#17 0x00007f616dc42c1a in  () at /usr/lib/libgtk-3.so.0
#18 0x00007f616da26680 in gtk_container_propagate_draw () at /usr/lib/libgtk-3.so.0
#19 0x00007f616da26762 in  () at /usr/lib/libgtk-3.so.0
#20 0x00007f616d9d8964 in  () at /usr/lib/libgtk-3.so.0
#21 0x00007f616da2b6bd in  () at /usr/lib/libgtk-3.so.0
#22 0x00007f616da30500 in  () at /usr/lib/libgtk-3.so.0
#23 0x00007f616d9db3d1 in  () at /usr/lib/libgtk-3.so.0
#24 0x00007f616dc429fb in  () at /usr/lib/libgtk-3.so.0
#25 0x00007f616da26680 in gtk_container_propagate_draw () at /usr/lib/libgtk-3.so.0
#26 0x00007f616da26762 in  () at /usr/lib/libgtk-3.so.0
#27 0x00007f616daa7184 in  () at /usr/lib/libgtk-3.so.0
#28 0x00007f616da2b6bd in  () at /usr/lib/libgtk-3.so.0
#29 0x00007f616da30500 in  () at /usr/lib/libgtk-3.so.0
#30 0x00007f616daa8261 in  () at /usr/lib/libgtk-3.so.0
#31 0x00007f616dc429fb in  () at /usr/lib/libgtk-3.so.0
#32 0x00007f616da26680 in gtk_container_propagate_draw () at /usr/lib/libgtk-3.so.0
#33 0x00007f616da26762 in  () at /usr/lib/libgtk-3.so.0
#34 0x00007f616d9d8964 in  () at /usr/lib/libgtk-3.so.0
#35 0x00007f616da2b6bd in  () at /usr/lib/libgtk-3.so.0
#36 0x00007f616da30500 in  () at /usr/lib/libgtk-3.so.0
#37 0x00007f616d9db3d1 in  () at /usr/lib/libgtk-3.so.0
#38 0x00007f616dc429fb in  () at /usr/lib/libgtk-3.so.0
#39 0x00007f616da26680 in gtk_container_propagate_draw () at /usr/lib/libgtk-3.so.0
#40 0x00007f616da26762 in  () at /usr/lib/libgtk-3.so.0
#41 0x00007f616dc50781 in  () at /usr/lib/libgtk-3.so.0
#42 0x00007f616dc429fb in  () at /usr/lib/libgtk-3.so.0
#43 0x00007f616dc4bcf8 in  () at /usr/lib/libgtk-3.so.0
#44 0x00007f616daeaa7a in gtk_main_do_event () at /usr/lib/libgtk-3.so.0
#45 0x00007f616d5fcd15 in  () at /usr/lib/libgdk-3.so.0
#46 0x00007f616d60d3a8 in  () at /usr/lib/libgdk-3.so.0
#47 0x00007f616d60e5a6 in  () at /usr/lib/libgdk-3.so.0
#48 0x00007f616d60e7a4 in  () at /usr/lib/libgdk-3.so.0
#49 0x00007f616c641f75 in g_closure_invoke () at /usr/lib/libgobject-2.0.so.0
#50 0x00007f616c653f82 in  () at /usr/lib/libgobject-2.0.so.0
#51 0x00007f616c65cbcc in g_signal_emit_valist () at /usr/lib/libgobject-2.0.so.0
#52 0x00007f616c65cfaf in g_signal_emit () at /usr/lib/libgobject-2.0.so.0
#53 0x00007f616d6063e9 in  () at /usr/lib/libgdk-3.so.0
#54 0x00007f616d5f15e8 in  () at /usr/lib/libgdk-3.so.0
#55 0x00007f616e216eb3 in  () at /usr/lib/libglib-2.0.so.0
#56 0x00007f616e21643a in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#57 0x00007f616e2167f0 in  () at /usr/lib/libglib-2.0.so.0
#58 0x00007f616e216b12 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#59 0x00007f616dae9c65 in gtk_main () at /usr/lib/libgtk-3.so.0
#60 0x00007f616ef1561c in dt_gui_gtk_run () at /usr/lib/libdarktable.so
#61 0x0000000000400750 in main ()