N-point deformation-Tool
First action (command after opening a file from 'Recently used files'-Dialog was starting (in German:'N-Punkt-Verformung' maybe 'N-point deformation'-tool?) . GIMP hangs and some minites later, crashed. This Bug report was shown
GNU Image Manipulation Program version 2.10.28
git-describe: Unknown, shouldn't happen
Build: org.gimp.GIMP_official rev 0 for macos
# C compiler #
Configured with: --prefix=/Applications/Xcode-12.5.1.app/Contents/Developer/usr --with-gxx-include-dir=/Library/Developer/CommandLineTools/SDKs/MacOSX10.12.sdk/usr/include/c++/4.2.1
Apple clang version 12.0.5 (clang-1205.0.22.11)
Target: x86_64-apple-darwin20.5.0
Thread model: posix
InstalledDir: /Applications/Xcode-12.5.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
# Libraries #
using babl version 0.1.88 (compiled against version 0.1.88)
using GEGL version 0.4.32 (compiled against version 0.4.32)
using GLib version 2.70.0 (compiled against version 2.70.0)
using GdkPixbuf version 2.40.0 (compiled against version 2.40.0)
using GTK+ version 2.24.33 (compiled against version 2.24.33)
using Pango version 1.44.7 (compiled against version 1.44.7)
using Fontconfig version 2.13.1 (compiled against version 2.13.1)
using Cairo version 1.16.0 (compiled against version 1.16.0)
fatal error: Segmentation fault: 11
Stack trace:
# Stack traces obtained from PID 1943 - Thread 0x869c #
(lldb) process attach --pid 1943
Process 1943 stopped
* thread #1: tid = 0x869c, 0x00007fff8fa73362 libsystem_kernel.dylib`read + 10, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
frame #0: 0x00007fff8fa73362 libsystem_kernel.dylib`read + 10
libsystem_kernel.dylib`read:
-> 0x7fff8fa73362 <+10>: jae 0x7fff8fa7336c ; <+20>
0x7fff8fa73364 <+12>: movq %rax, %rdi
0x7fff8fa73367 <+15>: jmp 0x7fff8fa6c7f2 ; cerror
0x7fff8fa7336c <+20>: retq
Executable module set to "/Applications/Bildarchivierung+bearbeitung/GIMP-2.10.app/Contents/MacOS/gimp".
Architecture set to: x86_64-apple-macosx.
(lldb) thread list
Process 1943 stopped
* thread #1: tid = 0x869c, 0x00007fff8fa73362 libsystem_kernel.dylib`read + 10, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
thread #2: tid = 0x8828, 0x00007fff8fa72efa libsystem_kernel.dylib`kevent_qos + 10, queue = 'com.apple.libdispatch-manager'
thread #3: tid = 0x883e, 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'worker'
thread #4: tid = 0x8842, 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'pool-spawner'
thread #5: tid = 0x8843, 0x00007fff8fa732a2 libsystem_kernel.dylib`poll + 10, name = 'gmain'
thread #6: tid = 0x8845, 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'async'
thread #7: tid = 0x8d16, 0x00007fff8fa732a2 libsystem_kernel.dylib`poll + 10
thread #8: tid = 0x8d44, 0x00007fff8fa6bf72 libsystem_kernel.dylib`mach_msg_trap + 10, name = 'com.apple.NSEventThread'
thread #9: tid = 0xaa08, 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'swap writer'
(lldb) thread backtrace all
* thread #1: tid = 0x869c, 0x00007fff8fa73362 libsystem_kernel.dylib`read + 10, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
* frame #0: 0x00007fff8fa73362 libsystem_kernel.dylib`read + 10
frame #1: 0x000000010c8aa792 libgimpbase-2.0.0.dylib`gimp_stack_trace_print + 626
frame #2: 0x000000010b8e5ac4 gimp`gimp_eek + 372
frame #3: 0x000000010b8e5948 gimp`gimp_fatal_error + 24
frame #4: 0x000000010b8e65fd gimp`gimp_sigfatal_handler + 45
frame #5: 0x00007fff85e1a52a libsystem_platform.dylib`_sigtramp + 26
frame #6: 0x000000010cd3ed80 libgegl-0.4.0.dylib`gegl_buffer_clear + 32
frame #7: 0x00000001120d7551 npd.dylib`process + 465
frame #8: 0x000000010cd7e760 libgegl-0.4.0.dylib`gegl_operation_filter_process + 240
frame #9: 0x000000010cd82656 libgegl-0.4.0.dylib`gegl_operation_process + 422
frame #10: 0x000000010cd86739 libgegl-0.4.0.dylib`gegl_graph_process + 793
frame #11: 0x000000010cd8585b libgegl-0.4.0.dylib`gegl_eval_manager_apply + 395
frame #12: 0x000000010cd6cc37 libgegl-0.4.0.dylib`gegl_node_blit_buffer + 215
frame #13: 0x000000010cd6d059 libgegl-0.4.0.dylib`gegl_node_blit + 905
frame #14: 0x000000010cd8714c libgegl-0.4.0.dylib`gegl_processor_work + 540
frame #15: 0x000000010cd6ebba libgegl-0.4.0.dylib`gegl_node_process + 122
frame #16: 0x000000010b9848e6 gimp`gimp_n_point_deformation_tool_button_press + 518
frame #17: 0x000000010b9a6eef gimp`gimp_tool_button_press + 207
frame #18: 0x000000010b9f5040 gimp`gimp_display_shell_canvas_tool_events_internal + 7408
frame #19: 0x000000010b9f3306 gimp`gimp_display_shell_canvas_tool_events + 54
frame #20: 0x000000010c3a7e46 libgtk-quartz-2.0.0.dylib`_gtk_marshal_BOOLEAN__BOXED + 102
frame #21: 0x000000010d41af16 libgobject-2.0.0.dylib`g_closure_invoke + 278
frame #22: 0x000000010d432289 libgobject-2.0.0.dylib`signal_emit_unlocked_R + 2233
frame #23: 0x000000010d433329 libgobject-2.0.0.dylib`g_signal_emit_valist + 2873
frame #24: 0x000000010d4337e2 libgobject-2.0.0.dylib`g_signal_emit + 130
frame #25: 0x000000010c4df166 libgtk-quartz-2.0.0.dylib`gtk_widget_event_internal + 614
frame #26: 0x000000010c3a5ec7 libgtk-quartz-2.0.0.dylib`gtk_propagate_event + 311
frame #27: 0x000000010c3a5ab4 libgtk-quartz-2.0.0.dylib`gtk_main_do_event + 1124
frame #28: 0x000000010c74c984 libgdk-quartz-2.0.0.dylib`gdk_event_dispatch + 84
frame #29: 0x000000010d4c6e7c libglib-2.0.0.dylib`g_main_context_dispatch + 364
frame #30: 0x000000010d4c71fd libglib-2.0.0.dylib`g_main_context_iterate + 525
frame #31: 0x000000010d4c751f libglib-2.0.0.dylib`g_main_loop_run + 223
frame #32: 0x000000010b8e534d gimp`app_run + 1069
frame #33: 0x000000010b8e887f gimp`main + 1199
frame #34: 0x00007fff8a6735ad libdyld.dylib`start + 1
thread #2: tid = 0x8828, 0x00007fff8fa72efa libsystem_kernel.dylib`kevent_qos + 10, queue = 'com.apple.libdispatch-manager'
frame #0: 0x00007fff8fa72efa libsystem_kernel.dylib`kevent_qos + 10
frame #1: 0x00007fff90f1f165 libdispatch.dylib`_dispatch_mgr_invoke + 216
frame #2: 0x00007fff90f1edcd libdispatch.dylib`_dispatch_mgr_thread + 52
thread #3: tid = 0x883e, 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'worker'
frame #0: 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10
frame #1: 0x00007fff88344728 libsystem_pthread.dylib`_pthread_cond_wait + 767
frame #2: 0x000000010d523436 libglib-2.0.0.dylib`g_cond_wait + 38
frame #3: 0x000000010cd21df3 libgegl-0.4.0.dylib`gegl_parallel_distribute_thread_func + 99
frame #4: 0x000000010d4f4f12 libglib-2.0.0.dylib`g_thread_proxy + 66
frame #5: 0x00007fff8834399d libsystem_pthread.dylib`_pthread_body + 131
frame #6: 0x00007fff8834391a libsystem_pthread.dylib`_pthread_start + 168
frame #7: 0x00007fff88341351 libsystem_pthread.dylib`thread_start + 13
thread #4: tid = 0x8842, 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'pool-spawner'
frame #0: 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10
frame #1: 0x00007fff88344728 libsystem_pthread.dylib`_pthread_cond_wait + 767
frame #2: 0x000000010d523436 libglib-2.0.0.dylib`g_cond_wait + 38
frame #3: 0x000000010d4908db libglib-2.0.0.dylib`g_async_queue_pop_intern_unlocked + 187
frame #4: 0x000000010d4f5548 libglib-2.0.0.dylib`g_thread_pool_spawn_thread + 72
frame #5: 0x000000010d4f4f12 libglib-2.0.0.dylib`g_thread_proxy + 66
frame #6: 0x00007fff8834399d libsystem_pthread.dylib`_pthread_body + 131
frame #7: 0x00007fff8834391a libsystem_pthread.dylib`_pthread_start + 168
frame #8: 0x00007fff88341351 libsystem_pthread.dylib`thread_start + 13
thread #5: tid = 0x8843, 0x00007fff8fa732a2 libsystem_kernel.dylib`poll + 10, name = 'gmain'
frame #0: 0x00007fff8fa732a2 libsystem_kernel.dylib`poll + 10
frame #1: 0x000000010d4c71a1 libglib-2.0.0.dylib`g_main_context_iterate + 433
frame #2: 0x000000010d4c72a6 libglib-2.0.0.dylib`g_main_context_iteration + 102
frame #3: 0x000000010d4c9381 libglib-2.0.0.dylib`glib_worker_main + 33
frame #4: 0x000000010d4f4f12 libglib-2.0.0.dylib`g_thread_proxy + 66
frame #5: 0x00007fff8834399d libsystem_pthread.dylib`_pthread_body + 131
frame #6: 0x00007fff8834391a libsystem_pthread.dylib`_pthread_start + 168
frame #7: 0x00007fff88341351 libsystem_pthread.dylib`thread_start + 13
thread #6: tid = 0x8845, 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'async'
frame #0: 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10
frame #1: 0x00007fff88344728 libsystem_pthread.dylib`_pthread_cond_wait + 767
frame #2: 0x000000010d523436 libglib-2.0.0.dylib`g_cond_wait + 38
frame #3: 0x000000010bbe1827 gimp`gimp_parallel_run_async_thread_func(GimpParallelRunAsyncThread*) + 119
frame #4: 0x000000010d4f4f12 libglib-2.0.0.dylib`g_thread_proxy + 66
frame #5: 0x00007fff8834399d libsystem_pthread.dylib`_pthread_body + 131
frame #6: 0x00007fff8834391a libsystem_pthread.dylib`_pthread_start + 168
frame #7: 0x00007fff88341351 libsystem_pthread.dylib`thread_start + 13
thread #7: tid = 0x8d16, 0x00007fff8fa732a2 libsystem_kernel.dylib`poll + 10
frame #0: 0x00007fff8fa732a2 libsystem_kernel.dylib`poll + 10
frame #1: 0x000000010c74cef2 libgdk-quartz-2.0.0.dylib`select_thread_func + 114
frame #2: 0x00007fff8834399d libsystem_pthread.dylib`_pthread_body + 131
frame #3: 0x00007fff8834391a libsystem_pthread.dylib`_pthread_start + 168
frame #4: 0x00007fff88341351 libsystem_pthread.dylib`thread_start + 13
thread #8: tid = 0x8d44, 0x00007fff8fa6bf72 libsystem_kernel.dylib`mach_msg_trap + 10, name = 'com.apple.NSEventThread'
frame #0: 0x00007fff8fa6bf72 libsystem_kernel.dylib`mach_msg_trap + 10
frame #1: 0x00007fff8fa6b3b3 libsystem_kernel.dylib`mach_msg + 55
frame #2: 0x00007fff89289114 CoreFoundation`__CFRunLoopServiceMachPort + 212
frame #3: 0x00007fff892885dc CoreFoundation`__CFRunLoopRun + 1356
frame #4: 0x00007fff89287e28 CoreFoundation`CFRunLoopRunSpecific + 296
frame #5: 0x00007fff967e3d95 AppKit`_NSEventThread + 149
frame #6: 0x00007fff8834399d libsystem_pthread.dylib`_pthread_body + 131
frame #7: 0x00007fff8834391a libsystem_pthread.dylib`_pthread_start + 168
frame #8: 0x00007fff88341351 libsystem_pthread.dylib`thread_start + 13
thread #9: tid = 0xaa08, 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'swap writer'
frame #0: 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10
frame #1: 0x00007fff88344728 libsystem_pthread.dylib`_pthread_cond_wait + 767
frame #2: 0x000000010d523436 libglib-2.0.0.dylib`g_cond_wait + 38
frame #3: 0x000000010cd6291d libgegl-0.4.0.dylib`gegl_tile_backend_swap_writer_thread + 109
frame #4: 0x000000010d4f4f12 libglib-2.0.0.dylib`g_thread_proxy + 66
frame #5: 0x00007fff8834399d libsystem_pthread.dylib`_pthread_body + 131
frame #6: 0x00007fff8834391a libsystem_pthread.dylib`_pthread_start + 168
frame #7: 0x00007fff88341351 libsystem_pthread.dylib`thread_start + 13
(lldb) bt all
* thread #1: tid = 0x869c, 0x00007fff8fa73362 libsystem_kernel.dylib`read + 10, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
* frame #0: 0x00007fff8fa73362 libsystem_kernel.dylib`read + 10
frame #1: 0x000000010c8aa792 libgimpbase-2.0.0.dylib`gimp_stack_trace_print + 626
frame #2: 0x000000010b8e5ac4 gimp`gimp_eek + 372
frame #3: 0x000000010b8e5948 gimp`gimp_fatal_error + 24
frame #4: 0x000000010b8e65fd gimp`gimp_sigfatal_handler + 45
frame #5: 0x00007fff85e1a52a libsystem_platform.dylib`_sigtramp + 26
frame #6: 0x000000010cd3ed80 libgegl-0.4.0.dylib`gegl_buffer_clear + 32
frame #7: 0x00000001120d7551 npd.dylib`process + 465
frame #8: 0x000000010cd7e760 libgegl-0.4.0.dylib`gegl_operation_filter_process + 240
frame #9: 0x000000010cd82656 libgegl-0.4.0.dylib`gegl_operation_process + 422
frame #10: 0x000000010cd86739 libgegl-0.4.0.dylib`gegl_graph_process + 793
frame #11: 0x000000010cd8585b libgegl-0.4.0.dylib`gegl_eval_manager_apply + 395
frame #12: 0x000000010cd6cc37 libgegl-0.4.0.dylib`gegl_node_blit_buffer + 215
frame #13: 0x000000010cd6d059 libgegl-0.4.0.dylib`gegl_node_blit + 905
frame #14: 0x000000010cd8714c libgegl-0.4.0.dylib`gegl_processor_work + 540
frame #15: 0x000000010cd6ebba libgegl-0.4.0.dylib`gegl_node_process + 122
frame #16: 0x000000010b9848e6 gimp`gimp_n_point_deformation_tool_button_press + 518
frame #17: 0x000000010b9a6eef gimp`gimp_tool_button_press + 207
frame #18: 0x000000010b9f5040 gimp`gimp_display_shell_canvas_tool_events_internal + 7408
frame #19: 0x000000010b9f3306 gimp`gimp_display_shell_canvas_tool_events + 54
frame #20: 0x000000010c3a7e46 libgtk-quartz-2.0.0.dylib`_gtk_marshal_BOOLEAN__BOXED + 102
frame #21: 0x000000010d41af16 libgobject-2.0.0.dylib`g_closure_invoke + 278
frame #22: 0x000000010d432289 libgobject-2.0.0.dylib`signal_emit_unlocked_R + 2233
frame #23: 0x000000010d433329 libgobject-2.0.0.dylib`g_signal_emit_valist + 2873
frame #24: 0x000000010d4337e2 libgobject-2.0.0.dylib`g_signal_emit + 130
frame #25: 0x000000010c4df166 libgtk-quartz-2.0.0.dylib`gtk_widget_event_internal + 614
frame #26: 0x000000010c3a5ec7 libgtk-quartz-2.0.0.dylib`gtk_propagate_event + 311
frame #27: 0x000000010c3a5ab4 libgtk-quartz-2.0.0.dylib`gtk_main_do_event + 1124
frame #28: 0x000000010c74c984 libgdk-quartz-2.0.0.dylib`gdk_event_dispatch + 84
frame #29: 0x000000010d4c6e7c libglib-2.0.0.dylib`g_main_context_dispatch + 364
frame #30: 0x000000010d4c71fd libglib-2.0.0.dylib`g_main_context_iterate + 525
frame #31: 0x000000010d4c751f libglib-2.0.0.dylib`g_main_loop_run + 223
frame #32: 0x000000010b8e534d gimp`app_run + 1069
frame #33: 0x000000010b8e887f gimp`main + 1199
frame #34: 0x00007fff8a6735ad libdyld.dylib`start + 1
thread #2: tid = 0x8828, 0x00007fff8fa72efa libsystem_kernel.dylib`kevent_qos + 10, queue = 'com.apple.libdispatch-manager'
frame #0: 0x00007fff8fa72efa libsystem_kernel.dylib`kevent_qos + 10
frame #1: 0x00007fff90f1f165 libdispatch.dylib`_dispatch_mgr_invoke + 216
frame #2: 0x00007fff90f1edcd libdispatch.dylib`_dispatch_mgr_thread + 52
thread #3: tid = 0x883e, 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'worker'
frame #0: 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10
frame #1: 0x00007fff88344728 libsystem_pthread.dylib`_pthread_cond_wait + 767
frame #2: 0x000000010d523436 libglib-2.0.0.dylib`g_cond_wait + 38
frame #3: 0x000000010cd21df3 libgegl-0.4.0.dylib`gegl_parallel_distribute_thread_func + 99
frame #4: 0x000000010d4f4f12 libglib-2.0.0.dylib`g_thread_proxy + 66
frame #5: 0x00007fff8834399d libsystem_pthread.dylib`_pthread_body + 131
frame #6: 0x00007fff8834391a libsystem_pthread.dylib`_pthread_start + 168
frame #7: 0x00007fff88341351 libsystem_pthread.dylib`thread_start + 13
thread #4: tid = 0x8842, 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'pool-spawner'
frame #0: 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10
frame #1: 0x00007fff88344728 libsystem_pthread.dylib`_pthread_cond_wait + 767
frame #2: 0x000000010d523436 libglib-2.0.0.dylib`g_cond_wait + 38
frame #3: 0x000000010d4908db libglib-2.0.0.dylib`g_async_queue_pop_intern_unlocked + 187
frame #4: 0x000000010d4f5548 libglib-2.0.0.dylib`g_thread_pool_spawn_thread + 72
frame #5: 0x000000010d4f4f12 libglib-2.0.0.dylib`g_thread_proxy + 66
frame #6: 0x00007fff8834399d libsystem_pthread.dylib`_pthread_body + 131
frame #7: 0x00007fff8834391a libsystem_pthread.dylib`_pthread_start + 168
frame #8: 0x00007fff88341351 libsystem_pthread.dylib`thread_start + 13
thread #5: tid = 0x8843, 0x00007fff8fa732a2 libsystem_kernel.dylib`poll + 10, name = 'gmain'
frame #0: 0x00007fff8fa732a2 libsystem_kernel.dylib`poll + 10
frame #1: 0x000000010d4c71a1 libglib-2.0.0.dylib`g_main_context_iterate + 433
frame #2: 0x000000010d4c72a6 libglib-2.0.0.dylib`g_main_context_iteration + 102
frame #3: 0x000000010d4c9381 libglib-2.0.0.dylib`glib_worker_main + 33
frame #4: 0x000000010d4f4f12 libglib-2.0.0.dylib`g_thread_proxy + 66
frame #5: 0x00007fff8834399d libsystem_pthread.dylib`_pthread_body + 131
frame #6: 0x00007fff8834391a libsystem_pthread.dylib`_pthread_start + 168
frame #7: 0x00007fff88341351 libsystem_pthread.dylib`thread_start + 13
thread #6: tid = 0x8845, 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'async'
frame #0: 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10
frame #1: 0x00007fff88344728 libsystem_pthread.dylib`_pthread_cond_wait + 767
frame #2: 0x000000010d523436 libglib-2.0.0.dylib`g_cond_wait + 38
frame #3: 0x000000010bbe1827 gimp`gimp_parallel_run_async_thread_func(GimpParallelRunAsyncThread*) + 119
frame #4: 0x000000010d4f4f12 libglib-2.0.0.dylib`g_thread_proxy + 66
frame #5: 0x00007fff8834399d libsystem_pthread.dylib`_pthread_body + 131
frame #6: 0x00007fff8834391a libsystem_pthread.dylib`_pthread_start + 168
frame #7: 0x00007fff88341351 libsystem_pthread.dylib`thread_start + 13
thread #7: tid = 0x8d16, 0x00007fff8fa732a2 libsystem_kernel.dylib`poll + 10
frame #0: 0x00007fff8fa732a2 libsystem_kernel.dylib`poll + 10
frame #1: 0x000000010c74cef2 libgdk-quartz-2.0.0.dylib`select_thread_func + 114
frame #2: 0x00007fff8834399d libsystem_pthread.dylib`_pthread_body + 131
frame #3: 0x00007fff8834391a libsystem_pthread.dylib`_pthread_start + 168
frame #4: 0x00007fff88341351 libsystem_pthread.dylib`thread_start + 13
thread #8: tid = 0x8d44, 0x00007fff8fa6bf72 libsystem_kernel.dylib`mach_msg_trap + 10, name = 'com.apple.NSEventThread'
frame #0: 0x00007fff8fa6bf72 libsystem_kernel.dylib`mach_msg_trap + 10
frame #1: 0x00007fff8fa6b3b3 libsystem_kernel.dylib`mach_msg + 55
frame #2: 0x00007fff89289114 CoreFoundation`__CFRunLoopServiceMachPort + 212
frame #3: 0x00007fff892885dc CoreFoundation`__CFRunLoopRun + 1356
frame #4: 0x00007fff89287e28 CoreFoundation`CFRunLoopRunSpecific + 296
frame #5: 0x00007fff967e3d95 AppKit`_NSEventThread + 149
frame #6: 0x00007fff8834399d libsystem_pthread.dylib`_pthread_body + 131
frame #7: 0x00007fff8834391a libsystem_pthread.dylib`_pthread_start + 168
frame #8: 0x00007fff88341351 libsystem_pthread.dylib`thread_start + 13
thread #9: tid = 0xaa08, 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'swap writer'
frame #0: 0x00007fff8fa71db6 libsystem_kernel.dylib`__psynch_cvwait + 10
frame #1: 0x00007fff88344728 libsystem_pthread.dylib`_pthread_cond_wait + 767
frame #2: 0x000000010d523436 libglib-2.0.0.dylib`g_cond_wait + 38
frame #3: 0x000000010cd6291d libgegl-0.4.0.dylib`gegl_tile_backend_swap_writer_thread + 109
frame #4: 0x000000010d4f4f12 libglib-2.0.0.dylib`g_thread_proxy + 66
frame #5: 0x00007fff8834399d libsystem_pthread.dylib`_pthread_body + 131
frame #6: 0x00007fff8834391a libsystem_pthread.dylib`_pthread_start + 168
frame #7: 0x00007fff88341351 libsystem_pthread.dylib`thread_start + 13