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Crash when taking screenshots under macOS #236

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MarcosCobena opened this issue Aug 8, 2018 · 13 comments
Open

Crash when taking screenshots under macOS #236

MarcosCobena opened this issue Aug 8, 2018 · 13 comments

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@MarcosCobena
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MarcosCobena commented Aug 8, 2018 •
edited
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OS:

  • MacBook Pro (15-inch, 2017)
  • macOS High Sierra (10.13.6)
  • Visual Studio for Mac 7.5.4.3

 

Steps to repro:

  1. Double check:
    1. No additional screens are attached, just the bundled one
    2. Screen size set at: 1680x1050 (recommended one)
  2. Download ScreenshotCrashBug.zip and run the project contained
  3. Click "Bar" button

What I expected:

  • Nothing, as the button justs takes a screenshot internally

 

What happened:

  • In some cases, the app crashes with outputs similar to the following
    • If there's a screen attached, the bug appears when the main monitor's set to the laptop's one, and such's resolution keeps being the recommended one

 

Crash logs:

  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) Gdk.Pixbuf.gdk_pixbuf_get_from_drawable (intptr,intptr,intptr,int,int,int,int,int,int) <0x00015>
  at Gdk.Pixbuf.FromDrawable (Gdk.Drawable,Gdk.Colormap,int,int,int,int,int,int) [0x0001c] in /Users/builder/jenkins/workspace/build-package-osx-mono/2017-12/external/bockbuild/builds/gtk-sharp-None/gdk/generated/Pixbuf.custom:273
  at ScreenshotCrashBug.MainClass/<>c.<Main>b__0_0 (object,System.EventArgs) [0x0002f] in /Users/marcos/Repositorios/Microsoft.SnipInsights/ScreenshotCrashBug/Program.cs:21
  at (wrapper runtime-invoke) <Module>.runtime_invoke_void__this___object_object (object,intptr,intptr,intptr) [0x0005b] in <3ef162e744784a18a992413881f08f7b>:0
  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) System.Reflection.MonoMethod.InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&) <0x00012>
  at System.Reflection.MonoMethod.Invoke (object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo) [0x00032] in /Users/builder/jenkins/workspace/build-package-osx-mono/2017-12/external/bockbuild/builds/mono-x64/mcs/class/corlib/System.Reflection/MonoMethod.cs:305
  at System.Reflection.MethodBase.Invoke (object,object[]) [0x00000] in /Users/builder/jenkins/workspace/build-package-osx-mono/2017-12/external/bockbuild/builds/mono-x64/mcs/class/referencesource/mscorlib/system/reflection/methodbase.cs:229
  at System.Delegate.DynamicInvokeImpl (object[]) [0x000e1] in /Users/builder/jenkins/workspace/build-package-osx-mono/2017-12/external/bockbuild/builds/mono-x64/mcs/class/corlib/System/Delegate.cs:461
  at System.MulticastDelegate.DynamicInvokeImpl (object[]) [0x00008] in /Users/builder/jenkins/workspace/build-package-osx-mono/2017-12/external/bockbuild/builds/mono-x64/mcs/class/corlib/System/MulticastDelegate.cs:67
  at System.Delegate.DynamicInvoke (object[]) [0x00000] in /Users/builder/jenkins/workspace/build-package-osx-mono/2017-12/external/bockbuild/builds/mono-x64/mcs/class/corlib/System/Delegate.cs:406
  at GLib.Signal.ClosureInvokedCB (object,GLib.ClosureInvokedArgs) [0x0007f] in /Users/builder/jenkins/workspace/build-package-osx-mono/2017-12/external/bockbuild/builds/gtk-sharp-None/glib/Signal.cs:207
  at GLib.Signal/SignalClosure.Invoke (GLib.ClosureInvokedArgs) [0x00019] in /Users/builder/jenkins/workspace/build-package-osx-mono/2017-12/external/bockbuild/builds/gtk-sharp-None/glib/SignalClosure.cs:114
  at GLib.Signal/SignalClosure.MarshalCallback (intptr,GLib.Value*,uint,GLib.Value*,intptr,intptr) [0x00053] in /Users/builder/jenkins/workspace/build-package-osx-mono/2017-12/external/bockbuild/builds/gtk-sharp-None/glib/SignalClosure.cs:143
  at (wrapper native-to-managed) GLib.Signal/SignalClosure.MarshalCallback (intptr,GLib.Value*,uint,GLib.Value*,intptr,intptr) [0x00027] in <270e7412760746b39483cb3d37bf0e03>:0
  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) Gtk.Application.gtk_main () <0x00012>
  at Gtk.Application.Run () [0x00001] in /Users/builder/jenkins/workspace/build-package-osx-mono/2017-12/external/bockbuild/builds/gtk-sharp-None/gtk/Application.cs:145
  at ScreenshotCrashBug.MainClass.Main (string[]) [0x00060] in /Users/marcos/Repositorios/Microsoft.SnipInsights/ScreenshotCrashBug/Program.cs:30
  at (wrapper runtime-invoke) <Module>.runtime_invoke_void_object (object,intptr,intptr,intptr) [0x00051] in <3ef162e744784a18a992413881f08f7b>:0

Native stacktrace:


Debug info from gdb:

(lldb) command source -s 0 '/tmp/mono-gdb-commands.zNUGJY'
Executing commands in '/tmp/mono-gdb-commands.zNUGJY'.
(lldb) process attach --pid 15676
warning: (i386) /Library/Frameworks/Mono.framework/Versions/5.10.1/lib/libgthread-2.0.0.dylib empty dSYM file detected, dSYM was created with an executable with no debug info.
warning: (i386) /Library/Frameworks/Mono.framework/Versions/5.10.1/lib/libgio-2.0.0.dylib empty dSYM file detected, dSYM was created with an executable with no debug info.
warning: (i386) /Library/Frameworks/Mono.framework/Versions/5.10.1/lib/libgmodule-2.0.0.dylib empty dSYM file detected, dSYM was created with an executable with no debug info.
warning: (i386) /Library/Frameworks/Mono.framework/Versions/5.10.1/lib/libgobject-2.0.0.dylib empty dSYM file detected, dSYM was created with an executable with no debug info.
warning: (i386) /Library/Frameworks/Mono.framework/Versions/5.10.1/lib/libglib-2.0.0.dylib empty dSYM file detected, dSYM was created with an executable with no debug info.
Process 15676 stopped
* thread #1, name = 'tid_303', queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
    frame #0: 0xa73df6a6 libsystem_kernel.dylib`__wait4 + 10
libsystem_kernel.dylib`__wait4:
->  0xa73df6a6 <+10>: jae    0xa73df6b6                ; <+26>
    0xa73df6a8 <+12>: calll  0xa73df6ad                ; <+17>
    0xa73df6ad <+17>: popl   %edx
    0xa73df6ae <+18>: movl   0x246997f(%edx), %edx
Target 0: (mono32) stopped.

Executable module set to "/Library/Frameworks/Mono.framework/Versions/5.10.1/bin/mono32".
Architecture set to: i386-apple-macosx.
(lldb) thread list
Process 15676 stopped
* thread #1: tid = 0x1a6713, 0xa73df6a6 libsystem_kernel.dylib`__wait4 + 10, name = 'tid_303', queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
  thread #2: tid = 0x1a6716, 0xa73ded4e libsystem_kernel.dylib`__psynch_cvwait + 10, name = 'SGen worker'
  thread #3: tid = 0x1a6719, 0xa73d543e libsystem_kernel.dylib`semaphore_wait_trap + 10, name = 'Finalizer'
  thread #4: tid = 0x1a671a, 0xa73defc6 libsystem_kernel.dylib`__recvfrom + 10, name = 'Debugger agent'
  thread #5: tid = 0x1a672e, 0xa73df716 libsystem_kernel.dylib`__workq_kernreturn + 10
  thread #6: tid = 0x1a675e, 0xa73d5402 libsystem_kernel.dylib`mach_msg_trap + 10, name = 'com.apple.NSEventThread'
  thread #7: tid = 0x1a6782, 0xa73df0a6 libsystem_kernel.dylib`__select + 10
  thread #8: tid = 0x1a689a, 0xa73df716 libsystem_kernel.dylib`__workq_kernreturn + 10
(lldb) thread backtrace all
* thread #1, name = 'tid_303', queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
  * frame #0: 0xa73df6a6 libsystem_kernel.dylib`__wait4 + 10
    frame #1: 0xa734ace2 libsystem_c.dylib`waitpid$UNIX2003 + 32
    frame #2: 0x00176a1e mono32`mono_handle_native_crash(signal=<unavailable>, ctx=<unavailable>, info=0x00785fa0) at mini-exceptions.c:2830 [opt]
    frame #3: 0x002047f2 mono32`mono_arch_handle_altstack_exception(sigctx=<unavailable>, siginfo=<unavailable>, fault_addr=<unavailable>, stack_ovf=<unavailable>) at exceptions-x86.c:1099 [opt]
    frame #4: 0x000c54a2 mono32`mono_sigsegv_signal_handler(_dummy=11, _info=0x00785fa0, context=0x00785fe0) at mini-runtime.c:3133 [opt]
  thread #2, name = 'SGen worker'
    frame #0: 0xa73ded4e libsystem_kernel.dylib`__psynch_cvwait + 10
    frame #1: 0xa759543c libsystem_pthread.dylib`_pthread_cond_wait + 658
    frame #2: 0xa759708c libsystem_pthread.dylib`pthread_cond_wait$UNIX2003 + 51
    frame #3: 0x0036cd71 mono32`thread_func [inlined] mono_os_cond_wait(mutex=0x0045c92c) at mono-os-mutex.h:173 [opt]
    frame #4: 0x0036cd5c mono32`thread_func at sgen-thread-pool.c:165 [opt]
    frame #5: 0x0036cd4c mono32`thread_func(data=<unavailable>) at sgen-thread-pool.c:196 [opt]
    frame #6: 0xa75944d5 libsystem_pthread.dylib`_pthread_body + 347
    frame #7: 0xa759437a libsystem_pthread.dylib`_pthread_start + 357
    frame #8: 0xa7593a56 libsystem_pthread.dylib`thread_start + 34
  thread #3, name = 'Finalizer'
    frame #0: 0xa73d543e libsystem_kernel.dylib`semaphore_wait_trap + 10
    frame #1: 0x0031bd74 mono32`finalizer_thread [inlined] mono_os_sem_wait(flags=MONO_SEM_FLAGS_ALERTABLE) at mono-os-semaphore.h:90 [opt]
    frame #2: 0x0031bd66 mono32`finalizer_thread at mono-coop-semaphore.h:43 [opt]
    frame #3: 0x0031bd55 mono32`finalizer_thread(unused=0x00000000) at gc.c:852 [opt]
    frame #4: 0x002d7c49 mono32`start_wrapper [inlined] start_wrapper_internal at threads.c:1004 [opt]
    frame #5: 0x002d7b94 mono32`start_wrapper(data=<unavailable>) at threads.c:1064 [opt]
    frame #6: 0xa75944d5 libsystem_pthread.dylib`_pthread_body + 347
    frame #7: 0xa759437a libsystem_pthread.dylib`_pthread_start + 357
    frame #8: 0xa7593a56 libsystem_pthread.dylib`thread_start + 34
  thread #4, name = 'Debugger agent'
    frame #0: 0xa73defc6 libsystem_kernel.dylib`__recvfrom + 10
    frame #1: 0xa734aec0 libsystem_c.dylib`recv$UNIX2003 + 30
    frame #2: 0x001af749 mono32`socket_transport_recv(buf=<unavailable>, len=11) at debugger-agent.c:1152 [opt]
    frame #3: 0x0019b1b4 mono32`debugger_thread [inlined] transport_recv(len=11) at debugger-agent.c:1558 [opt]
    frame #4: 0x0019b1a2 mono32`debugger_thread(arg=0x00000000) at debugger-agent.c:10517 [opt]
    frame #5: 0x002d7c49 mono32`start_wrapper [inlined] start_wrapper_internal at threads.c:1004 [opt]
    frame #6: 0x002d7b94 mono32`start_wrapper(data=<unavailable>) at threads.c:1064 [opt]
    frame #7: 0xa75944d5 libsystem_pthread.dylib`_pthread_body + 347
    frame #8: 0xa759437a libsystem_pthread.dylib`_pthread_start + 357
    frame #9: 0xa7593a56 libsystem_pthread.dylib`thread_start + 34
  thread #5
    frame #0: 0xa73df716 libsystem_kernel.dylib`__workq_kernreturn + 10
    frame #1: 0xa7593e64 libsystem_pthread.dylib`_pthread_wqthread + 1035
    frame #2: 0xa7593a32 libsystem_pthread.dylib`start_wqthread + 34
  thread #6, name = 'com.apple.NSEventThread'
    frame #0: 0xa73d5402 libsystem_kernel.dylib`mach_msg_trap + 10
    frame #1: 0xa73d4a3f libsystem_kernel.dylib`mach_msg + 47
    frame #2: 0x9377ea68 CoreFoundation`__CFRunLoopServiceMachPort + 296
    frame #3: 0x9377da56 CoreFoundation`__CFRunLoopRun + 2262
    frame #4: 0x9377ce51 CoreFoundation`CFRunLoopRunSpecific + 641
    frame #5: 0x9377cbba CoreFoundation`CFRunLoopRunInMode + 122
    frame #6: 0x914aa580 AppKit`_NSEventThread + 165
    frame #7: 0xa75944d5 libsystem_pthread.dylib`_pthread_body + 347
    frame #8: 0xa759437a libsystem_pthread.dylib`_pthread_start + 357
    frame #9: 0xa7593a56 libsystem_pthread.dylib`thread_start + 34
  thread #7
    frame #0: 0xa73df0a6 libsystem_kernel.dylib`__select + 10
    frame #1: 0x032170d4 libglib-2.0.0.dylib`g_poll + 372
    frame #2: 0x02892cc2 libgdk-quartz-2.0.0.dylib`select_thread_func + 386
    frame #3: 0xa75944d5 libsystem_pthread.dylib`_pthread_body + 347
    frame #4: 0xa759437a libsystem_pthread.dylib`_pthread_start + 357
    frame #5: 0xa7593a56 libsystem_pthread.dylib`thread_start + 34
  thread #8
    frame #0: 0xa73df716 libsystem_kernel.dylib`__workq_kernreturn + 10
    frame #1: 0xa7594059 libsystem_pthread.dylib`_pthread_wqthread + 1536
    frame #2: 0xa7593a32 libsystem_pthread.dylib`start_wqthread + 34
(lldb) detach

=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries 
used by your application.
=================================================================

Process 15676 detached
(lldb) quit
@MarcosCobena
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This' the output from macOS' error reporting tool:

Process:               mono-sgen32 [16151]
Path:                  /Library/Frameworks/Mono.framework/Versions/5.10.1/bin/mono32
Identifier:            mono-sgen32
Version:               ???
Code Type:             X86 (Native)
Parent Process:        VisualStudio [16079]
Responsible:           mono-sgen32 [16151]
User ID:               501

Date/Time:             2018-08-08 12:01:46.164 +0200
OS Version:            Mac OS X 10.13.6 (17G65)
Report Version:        12
Bridge OS Version:     3.0 (14Y664)
Anonymous UUID:        7BE792F0-18A8-7003-74E0-FBD5B698D0F7

Sleep/Wake UUID:       371F314E-7CB5-4768-BF54-B894381F4F46

Time Awake Since Boot: 58000 seconds
Time Since Wake:       13000 seconds

System Integrity Protection: enabled

Crashed Thread:        0  tid_303  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_BAD_ACCESS (SIGABRT)
Exception Codes:       KERN_INVALID_ADDRESS at 0x000000000644f000
Exception Note:        EXC_CORPSE_NOTIFY

VM Regions Near 0x644f000:
    CG raster data         000000000640d000-000000000644e000 [  260K] rw-/rwx SM=COW  
--> 
    MALLOC_LARGE           00000000065b9000-00000000067c5000 [ 2096K] rw-/rwx SM=COW  

Application Specific Information:
abort() called

Thread 0 Crashed:: tid_303  Dispatch queue: com.apple.main-thread
0   libsystem_kernel.dylib        	0xa73deed6 __pthread_kill + 10
1   libsystem_pthread.dylib       	0xa7597427 pthread_kill + 363
2   libsystem_c.dylib             	0xa732d956 abort + 133
3   mono32                        	0x00170aec mono_handle_native_crash + 652 (mini-exceptions.c:2878)
4   mono32                        	0x001fe7f2 mono_arch_handle_altstack_exception + 162 (exceptions-x86.c:1099)
5   mono32                        	0x000bf4a2 mono_sigsegv_signal_handler + 370 (mini-runtime.c:3133)
6   libsystem_platform.dylib      	0xa758c02b _sigtramp + 43
7   ???                           	0xffffffff 0 + 4294967295
8   mono32                        	0x000bf330 0xaf000 + 66352
9   libgdk-quartz-2.0.0.dylib     	0x028954bc _gdk_quartz_image_copy_to_image + 3452
10  libgdk-quartz-2.0.0.dylib     	0x0283f4e9 gdk_drawable_copy_to_image + 713
11  libgdk-quartz-2.0.0.dylib     	0x0287c211 gdk_window_copy_to_image + 401
12  libgdk-quartz-2.0.0.dylib     	0x0283f4e9 gdk_drawable_copy_to_image + 713
13  libgdk-quartz-2.0.0.dylib     	0x0285192e gdk_pixbuf_get_from_drawable + 2078
14  ???                           	0x099a94ec 0 + 161125612
15  ???                           	0x099a9168 0 + 161124712
16  ???                           	0x05a62fc8 0 + 94777288
17  ???                           	0x05a6318c 0 + 94777740
18  mono32                        	0x000c2d14 mono_jit_runtime_invoke + 804 (mini-runtime.c:2806)
19  mono32                        	0x002af10a do_runtime_invoke + 74 (object.c:2887)
20  mono32                        	0x002b2bcb mono_runtime_try_invoke_array + 1323 (object.c:3040)
21  mono32                        	0x002b3085 mono_runtime_invoke_array_checked + 37 (object.c:5104)
22  mono32                        	0x00253c59 ves_icall_InternalInvoke + 697 (icall.c:3386)
23  ???                           	0x05a62d34 0 + 94776628
24  ???                           	0x05a60f0c 0 + 94768908
25  ???                           	0x05a60d34 0 + 94768436
26  ???                           	0x05a6081c 0 + 94767132
27  ???                           	0x05a60294 0 + 94765716
28  ???                           	0x05a6020e 0 + 94765582
29  ???                           	0x05a5ff08 0 + 94764808
30  ???                           	0x05a5fbca 0 + 94763978
31  ???                           	0x05a5cb48 0 + 94751560
32  ???                           	0x05a5a100 0 + 94740736
33  libgobject-2.0.0.dylib        	0x031950bd g_closure_invoke + 191
34  libgobject-2.0.0.dylib        	0x031a6e0f signal_emit_unlocked_R + 2156
35  libgobject-2.0.0.dylib        	0x031a7721 g_signal_emit_valist + 1748
36  libgobject-2.0.0.dylib        	0x031a7c51 g_signal_emit + 29
37  libgtk-quartz-2.0.0.dylib     	0x02295045 gtk_button_clicked + 229
38  libgtk-quartz-2.0.0.dylib     	0x02299f2e gtk_real_button_released + 110
39  libgobject-2.0.0.dylib        	0x03196d8f g_cclosure_marshal_VOID__VOIDv + 48
40  libgobject-2.0.0.dylib        	0x031957b8 g_type_class_meta_marshalv + 45
41  libgobject-2.0.0.dylib        	0x03195275 _g_closure_invoke_va + 200
42  libgobject-2.0.0.dylib        	0x031a74b4 g_signal_emit_valist + 1127
43  libgobject-2.0.0.dylib        	0x031a7c51 g_signal_emit + 29
44  libgtk-quartz-2.0.0.dylib     	0x02294f55 gtk_button_released + 229
45  libgtk-quartz-2.0.0.dylib     	0x02299a60 gtk_button_button_release + 48
46  libgtk-quartz-2.0.0.dylib     	0x023bf844 _gtk_marshal_BOOLEAN__BOXED + 324
47  libgobject-2.0.0.dylib        	0x031955e5 g_type_class_meta_marshal + 53
48  libgobject-2.0.0.dylib        	0x031950bd g_closure_invoke + 191
49  libgobject-2.0.0.dylib        	0x031a6cd9 signal_emit_unlocked_R + 1846
50  libgobject-2.0.0.dylib        	0x031a777a g_signal_emit_valist + 1837
51  libgobject-2.0.0.dylib        	0x031a7c51 g_signal_emit + 29
52  libgtk-quartz-2.0.0.dylib     	0x025b0144 gtk_widget_event_internal + 804
53  libgtk-quartz-2.0.0.dylib     	0x025afe12 gtk_widget_event + 386
54  libgtk-quartz-2.0.0.dylib     	0x023bd56a propagate_event_up + 106
55  libgtk-quartz-2.0.0.dylib     	0x023bc703 propagate_event + 579
56  libgtk-quartz-2.0.0.dylib     	0x023bb240 gtk_propagate_event + 304
57  libgtk-quartz-2.0.0.dylib     	0x023bab05 gtk_main_do_event + 1365
58  libgdk-quartz-2.0.0.dylib     	0x028911a8 gdk_event_dispatch + 168
59  libglib-2.0.0.dylib           	0x03205f47 g_main_context_dispatch + 248
60  libglib-2.0.0.dylib           	0x0320628c g_main_context_iterate + 423
61  libglib-2.0.0.dylib           	0x032064e2 g_main_loop_run + 217
62  libgtk-quartz-2.0.0.dylib     	0x023ba061 gtk_main + 273
63  ???                           	0x05a5c79c 0 + 94750620
64  ???                           	0x05a5c6f4 0 + 94750452
65  ???                           	0x00769a20 0 + 7772704
66  ???                           	0x00769b9f 0 + 7773087
67  mono32                        	0x000c2d14 mono_jit_runtime_invoke + 804 (mini-runtime.c:2806)
68  mono32                        	0x002af10a do_runtime_invoke + 74 (object.c:2887)
69  mono32                        	0x002b25b4 do_exec_main_checked + 132 (object.c:4784)
70  mono32                        	0x002b13f5 mono_runtime_run_main_checked + 69 (object.c:4306)
71  mono32                        	0x00130eaa mono_jit_exec + 314 (driver.g.c:1210)
72  mono32                        	0x001342da mono_main + 12106 (driver.g.c:1287)
73  mono32                        	0x000b153a main + 266 (.main.c:340)
74  mono32                        	0x000b1425 start + 53

Thread 1:: SGen worker
0   libsystem_kernel.dylib        	0xa73ded4e __psynch_cvwait + 10
1   libsystem_pthread.dylib       	0xa759543c _pthread_cond_wait + 658
2   libsystem_pthread.dylib       	0xa759708c pthread_cond_wait$UNIX2003 + 51
3   mono32                        	0x00366d71 thread_func + 545 (mono-os-mutex.h:173)
4   libsystem_pthread.dylib       	0xa75944d5 _pthread_body + 347
5   libsystem_pthread.dylib       	0xa759437a _pthread_start + 357
6   libsystem_pthread.dylib       	0xa7593a56 thread_start + 34

Thread 2:: Finalizer
0   libsystem_kernel.dylib        	0xa73d543e semaphore_wait_trap + 10
1   mono32                        	0x00315d74 finalizer_thread + 628 (mono-os-semaphore.h:90)
2   mono32                        	0x002d1c49 start_wrapper + 681 (threads.c:1004)
3   libsystem_pthread.dylib       	0xa75944d5 _pthread_body + 347
4   libsystem_pthread.dylib       	0xa759437a _pthread_start + 357
5   libsystem_pthread.dylib       	0xa7593a56 thread_start + 34

Thread 3:: Debugger agent
0   libsystem_kernel.dylib        	0xa73defc6 __recvfrom + 10
1   libsystem_c.dylib             	0xa734aec0 recv$UNIX2003 + 30
2   mono32                        	0x001a9749 socket_transport_recv + 73 (debugger-agent.c:1152)
3   mono32                        	0x001951b4 debugger_thread + 1316 (debugger-agent.c:10517)
4   mono32                        	0x002d1c49 start_wrapper + 681 (threads.c:1004)
5   libsystem_pthread.dylib       	0xa75944d5 _pthread_body + 347
6   libsystem_pthread.dylib       	0xa759437a _pthread_start + 357
7   libsystem_pthread.dylib       	0xa7593a56 thread_start + 34

Thread 4:
0   libsystem_kernel.dylib        	0xa73df716 __workq_kernreturn + 10
1   libsystem_pthread.dylib       	0xa7594059 _pthread_wqthread + 1536
2   libsystem_pthread.dylib       	0xa7593a32 start_wqthread + 34

Thread 5:
0   libsystem_kernel.dylib        	0xa73df716 __workq_kernreturn + 10
1   libsystem_pthread.dylib       	0xa7593e64 _pthread_wqthread + 1035
2   libsystem_pthread.dylib       	0xa7593a32 start_wqthread + 34

Thread 6:
0   libsystem_kernel.dylib        	0xa73df716 __workq_kernreturn + 10
1   libsystem_pthread.dylib       	0xa7594059 _pthread_wqthread + 1536
2   libsystem_pthread.dylib       	0xa7593a32 start_wqthread + 34

Thread 7:
0   libsystem_kernel.dylib        	0xa73df716 __workq_kernreturn + 10
1   libsystem_pthread.dylib       	0xa7594059 _pthread_wqthread + 1536
2   libsystem_pthread.dylib       	0xa7593a32 start_wqthread + 34

Thread 8:: com.apple.NSEventThread
0   libsystem_kernel.dylib        	0xa73d5402 mach_msg_trap + 10
1   libsystem_kernel.dylib        	0xa73d4a3f mach_msg + 47
2   com.apple.CoreFoundation      	0x9377ea68 __CFRunLoopServiceMachPort + 296
3   com.apple.CoreFoundation      	0x9377da56 __CFRunLoopRun + 2262
4   com.apple.CoreFoundation      	0x9377ce51 CFRunLoopRunSpecific + 641
5   com.apple.CoreFoundation      	0x9377cbba CFRunLoopRunInMode + 122
6   com.apple.AppKit              	0x914aa580 _NSEventThread + 165
7   libsystem_pthread.dylib       	0xa75944d5 _pthread_body + 347
8   libsystem_pthread.dylib       	0xa759437a _pthread_start + 357
9   libsystem_pthread.dylib       	0xa7593a56 thread_start + 34

Thread 9:
0   libsystem_kernel.dylib        	0xa73df0a6 __select + 10
1   libglib-2.0.0.dylib           	0x032110d4 g_poll + 372
2   libgdk-quartz-2.0.0.dylib     	0x02891cc2 select_thread_func + 386
3   libsystem_pthread.dylib       	0xa75944d5 _pthread_body + 347
4   libsystem_pthread.dylib       	0xa759437a _pthread_start + 357
5   libsystem_pthread.dylib       	0xa7593a56 thread_start + 34

Thread 10:
0   libsystem_kernel.dylib        	0xa73df716 __workq_kernreturn + 10
1   libsystem_pthread.dylib       	0xa7594059 _pthread_wqthread + 1536
2   libsystem_pthread.dylib       	0xa7593a32 start_wqthread + 34

Thread 11:
0   libsystem_kernel.dylib        	0xa73df716 __workq_kernreturn + 10
1   libsystem_pthread.dylib       	0xa7593e39 _pthread_wqthread + 992
2   libsystem_pthread.dylib       	0xa7593a32 start_wqthread + 34

Thread 12:
0   libsystem_kernel.dylib        	0xa73df716 __workq_kernreturn + 10
1   libsystem_pthread.dylib       	0xa7594059 _pthread_wqthread + 1536
2   libsystem_pthread.dylib       	0xa7593a32 start_wqthread + 34

Thread 0 crashed with X86 Thread State (32-bit):
  eax: 0x00000000  ebx: 0xa98581c0  ecx: 0x01bd25ec  edx: 0x00000000
  edi: 0xa75972ca  esi: 0x0000002d  ebp: 0x01bd2618  esp: 0x01bd25ec
   ss: 0x00000023  efl: 0x00000206  eip: 0xa73deed6   cs: 0x0000000b
   ds: 0x00000023   es: 0x00000023   fs: 0x00000000   gs: 0x0000000f
  cr2: 0xa983d340
  
Logical CPU:     0
Error Code:      0x00080148
Trap Number:     132


Binary Images:
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0x93316000 - 0x933b1fff  com.apple.audio.CoreAudio (4.3.0 - 4.3.0) <F8404BD1-D823-3151-924F-65EB5D7B0FB7> /System/Library/Frameworks/CoreAudio.framework/Versions/A/CoreAudio
0x9340f000 - 0x93414fff  com.apple.CoreBluetooth (1.0 - 1) <D8E00284-8021-3A90-8379-CF161DA6078B> /System/Library/Frameworks/CoreBluetooth.framework/Versions/A/CoreBluetooth
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0xa5172000 - 0xa51a9ff3  libCRFSuite.dylib (41) <7B102174-C6BA-3EA8-93AC-A53254B79D78> /usr/lib/libCRFSuite.dylib
0xa51aa000 - 0xa51b4ffb  libChineseTokenizer.dylib (28) <00EF6AE9-C195-334C-9776-79E9BD298AF6> /usr/lib/libChineseTokenizer.dylib
0xa5250000 - 0xa5251fff  libDiagnosticMessagesClient.dylib (104) <6829B180-2556-3A7E-A2E6-BD4859DF30A7> /usr/lib/libDiagnosticMessagesClient.dylib
0xa5283000 - 0xa546dff7  libFosl_dynamic.dylib (17.8) <2806AC88-9928-3848-B63E-E3891CD58511> /usr/lib/libFosl_dynamic.dylib
0xa5475000 - 0xa5475fff  libOpenScriptingUtil.dylib (174) <BD4EA519-A75C-3840-8870-4DE884502F47> /usr/lib/libOpenScriptingUtil.dylib
0xa54c9000 - 0xa54cdfff  libScreenReader.dylib (562.18.4) <24F173B6-9EB9-3730-A6CE-D43827265020> /usr/lib/libScreenReader.dylib
0xa54ce000 - 0xa54cffff  libSystem.B.dylib (1252.50.4) <E6DD99AE-23C6-3985-8CA6-53703FCB35B4> /usr/lib/libSystem.B.dylib
0xa54de000 - 0xa54f3ff7  libapple_nghttp2.dylib (1.24) <480C0C04-2533-3D44-8232-006B6CBA7758> /usr/lib/libapple_nghttp2.dylib
0xa54f4000 - 0xa551ffff  libarchive.2.dylib (54) <D55C5F86-251D-3C33-A617-0C623D4F512E> /usr/lib/libarchive.2.dylib
0xa5520000 - 0xa566fffb  libate.dylib (1.13.1) <E109CCBF-357D-3C87-9CE5-D53AE03609A2> /usr/lib/libate.dylib
0xa5673000 - 0xa5673ff3  libauto.dylib (187) <CE2A78CC-670F-3E07-9539-822DCD2F6084> /usr/lib/libauto.dylib
0xa5674000 - 0xa5684fff  libbsm.0.dylib (39) <6A4D8D43-8AD8-3B0C-A19C-22A77D30DD8E> /usr/lib/libbsm.0.dylib
0xa5685000 - 0xa5691ff7  libbz2.1.0.dylib (38) <77C24A36-BE84-3702-A786-935C597A0A86> /usr/lib/libbz2.1.0.dylib
0xa5692000 - 0xa56ebffb  libc++.1.dylib (400.9) <BA03445F-C2AD-3C30-A25D-3654091142AB> /usr/lib/libc++.1.dylib
0xa56ec000 - 0xa570dfff  libc++abi.dylib (400.8.2) <60422228-2A4A-3A12-AB94-3110E9082D62> /usr/lib/libc++abi.dylib
0xa570f000 - 0xa5720ff7  libcmph.dylib (6) <EC7664F1-B5A1-37F4-B7DC-F6AC10587E35> /usr/lib/libcmph.dylib
0xa5721000 - 0xa5736ff7  libcompression.dylib (47.60.2) <FB4313A1-D9BE-36DD-A8A2-1AC45D0320AD> /usr/lib/libcompression.dylib
0xa5737000 - 0xa574effb  libcoretls.dylib (155.50.1) <A7FFC69E-B53D-324D-8AE1-C1AC50CEB37F> /usr/lib/libcoretls.dylib
0xa574f000 - 0xa5750fff  libcoretls_cfhelpers.dylib (155.50.1) <D210E966-844F-3A00-A17E-7489EE444E36> /usr/lib/libcoretls_cfhelpers.dylib
0xa58d1000 - 0xa5a78ff3  libcrypto.35.dylib (22.50.2) <A658A3FD-A5C4-3DC9-9A45-A2E97282D419> /usr/lib/libcrypto.35.dylib
0xa5c38000 - 0xa5c8ffff  libcups.2.dylib (462.2.4) <8187638B-3FD9-3BF9-ADFE-210ACB2B5C28> /usr/lib/libcups.2.dylib
0xa5da6000 - 0xa5da6fff  libenergytrace.dylib (16) <34FC43C7-D9B6-3C01-8B65-E49059D31279> /usr/lib/libenergytrace.dylib
0xa5da7000 - 0xa5dbeffb  libexpat.1.dylib (16.1.1) <3E73B1C8-216F-3E94-83AE-59559365D2DD> /usr/lib/libexpat.1.dylib
0xa5dda000 - 0xa5ddefff  libheimdal-asn1.dylib (520.50.6) <CAA45AC8-3953-38C7-B6C1-E7ACA1607054> /usr/lib/libheimdal-asn1.dylib
0xa5e0a000 - 0xa5efaff3  libiconv.2.dylib (51.50.1) <F3BF51D6-CFAD-3105-AF32-0667945E0F99> /usr/lib/libiconv.2.dylib
0xa5efb000 - 0xa611dff7  libicucore.A.dylib (59180.0.1) <4B6089C6-275F-39D5-A51F-8BC5EF60CCFD> /usr/lib/libicucore.A.dylib
0xa6165000 - 0xa6166fff  liblangid.dylib (128) <120FE992-47E4-3A73-A039-1B401F5696DC> /usr/lib/liblangid.dylib
0xa6167000 - 0xa617fff7  liblzma.5.dylib (10) <8A5C9679-430A-3A19-AF68-9D21BAC442C7> /usr/lib/liblzma.5.dylib
0xa6180000 - 0xa6195fff  libmarisa.dylib (9) <805453EE-B829-3DA5-8DF3-5132D03D5B74> /usr/lib/libmarisa.dylib
0xa624a000 - 0xa6467fff  libmecabra.dylib (779.7.6) <A6D0BC1B-9DF2-3A26-8E1A-06AE207355E7> /usr/lib/libmecabra.dylib
0xa662e000 - 0xa67a5ff3  libnetwork.dylib (1229.70.2) <2B814796-E4F2-3AD3-A8E2-BECB4A4726F1> /usr/lib/libnetwork.dylib
0xa67a6000 - 0xa6b860fb  libobjc.A.dylib (723) <069E8DD2-ECBD-3296-9688-199A93DB8F1F> /usr/lib/libobjc.A.dylib
0xa6b8a000 - 0xa6b8dfff  libpam.2.dylib (22) <7106F43C-84DD-3F26-905A-B52780AFEB3E> /usr/lib/libpam.2.dylib
0xa6b90000 - 0xa6bc1fff  libpcap.A.dylib (79.20.1) <154889CF-5F83-3012-953E-0FC8FEE50FF8> /usr/lib/libpcap.A.dylib
0xa6bff000 - 0xa6c1affb  libresolv.9.dylib (65) <65A43F5B-CF88-3948-AE5C-D7CA02D814A1> /usr/lib/libresolv.9.dylib
0xa6c65000 - 0xa6defffb  libsqlite3.dylib (274.8.1) <2865CDEE-96C4-3ECC-9F4B-876D0CD27C41> /usr/lib/libsqlite3.dylib
0xa6f93000 - 0xa6ff2fff  libusrtcp.dylib (1229.70.2) <DCC93418-5566-3D51-A3D9-77910D9FDDFA> /usr/lib/libusrtcp.dylib
0xa6ff3000 - 0xa6ff6ff7  libutil.dylib (51.20.1) <86BD9675-16A2-345D-9B8D-E8A3397F2365> /usr/lib/libutil.dylib
0xa6ff7000 - 0xa7005ff7  libxar.1.dylib (400) <4B664A7E-EC05-34AD-ACC6-C879B69DBA7C> /usr/lib/libxar.1.dylib
0xa7006000 - 0xa70e4ff7  libxml2.2.dylib (31.11) <6F773CE6-CB18-3A29-983E-AFED28B03795> /usr/lib/libxml2.2.dylib
0xa70e5000 - 0xa710dff3  libxslt.1.dylib (15.12) <2A385CB5-9458-3408-A4F2-1F51553823F4> /usr/lib/libxslt.1.dylib
0xa710e000 - 0xa711dff7  libz.1.dylib (70) <588F445F-0065-3D77-8002-BA9411DA1D70> /usr/lib/libz.1.dylib
0xa7158000 - 0xa715cfff  libcache.dylib (80) <E9928057-A238-3619-8E30-4D1C21C9493C> /usr/lib/system/libcache.dylib
0xa715d000 - 0xa7167fff  libcommonCrypto.dylib (60118.50.1) <95434E97-2B85-3607-9E02-2A8CFD178D23> /usr/lib/system/libcommonCrypto.dylib
0xa7168000 - 0xa716dfff  libcompiler_rt.dylib (62) <B9947B1F-9930-385A-A960-856CF6C539CF> /usr/lib/system/libcompiler_rt.dylib
0xa716e000 - 0xa7178ff3  libcopyfile.dylib (146.50.5) <6A3EF295-2778-3405-BE11-8947695F4A31> /usr/lib/system/libcopyfile.dylib
0xa7179000 - 0xa71e1ff7  libcorecrypto.dylib (562.70.1) <2E8F17AB-72C4-3FDC-8090-036BA1343257> /usr/lib/system/libcorecrypto.dylib
0xa724c000 - 0xa7281fff  libdispatch.dylib (913.60.2) <29F0653D-924A-35E4-BB3C-AD7B56ACE092> /usr/lib/system/libdispatch.dylib
0xa7282000 - 0xa729ffff  libdyld.dylib (551.4) <71C23F4A-E3BE-34B7-B3AC-90F781E3ECDA> /usr/lib/system/libdyld.dylib
0xa72a0000 - 0xa72a0fff  libkeymgr.dylib (28) <35604C10-4B09-3AA0-9694-87D40C15E706> /usr/lib/system/libkeymgr.dylib
0xa72a1000 - 0xa72adff7  libkxld.dylib (4570.71.2) <A880F97E-69F6-3B71-B88A-4759D1540769> /usr/lib/system/libkxld.dylib
0xa72ae000 - 0xa72aefff  liblaunch.dylib (1205.70.9) <1AEC29B0-C621-330B-95D0-83E22475220C> /usr/lib/system/liblaunch.dylib
0xa72af000 - 0xa72b4fff  libmacho.dylib (906) <14070ABC-E6F7-3CD5-9527-56E38D65BC74> /usr/lib/system/libmacho.dylib
0xa72b5000 - 0xa72b7fff  libquarantine.dylib (86) <2660EB51-FA02-36ED-9416-83A4A6849026> /usr/lib/system/libquarantine.dylib
0xa72b8000 - 0xa72b9fff  libremovefile.dylib (45) <BE0DA6CE-2EF4-3BE9-84E1-BB27E1F385DD> /usr/lib/system/libremovefile.dylib
0xa72ba000 - 0xa72d1ff7  libsystem_asl.dylib (356.70.1) <DD6A85F9-7255-356C-BC52-28E9EC6455CC> /usr/lib/system/libsystem_asl.dylib
0xa72d2000 - 0xa72d2fff  libsystem_blocks.dylib (67) <D45F0CE1-D217-3B46-A84A-F884FE576E04> /usr/lib/system/libsystem_blocks.dylib
0xa72d3000 - 0xa735fff3  libsystem_c.dylib (1244.50.9) <3A7B32B2-F70C-3148-A2B0-38412EF1489F> /usr/lib/system/libsystem_c.dylib
0xa7360000 - 0xa7363fff  libsystem_configuration.dylib (963.50.8) <EBE21758-807D-3038-91A9-F6075353C6A0> /usr/lib/system/libsystem_configuration.dylib
0xa7364000 - 0xa7367fff  libsystem_coreservices.dylib (51) <CF4379BC-AEDD-34DF-BFD7-CEA27B0930D5> /usr/lib/system/libsystem_coreservices.dylib
0xa7368000 - 0xa7369fff  libsystem_darwin.dylib (1244.50.9) <326B9F59-5784-3C79-8A44-7C40D662C695> /usr/lib/system/libsystem_darwin.dylib
0xa736a000 - 0xa7370ff3  libsystem_dnssd.dylib (878.70.2) <4D31B746-7879-33D9-8B57-C0945A3FC317> /usr/lib/system/libsystem_dnssd.dylib
0xa7371000 - 0xa73c0ffb  libsystem_info.dylib (517.30.1) <E2FFFE29-1405-342E-8C57-31F681F510F7> /usr/lib/system/libsystem_info.dylib
0xa73c1000 - 0xa73e5ff3  libsystem_kernel.dylib (4570.71.2) <8CB5747F-0A93-3EB3-9778-2095D868022F> /usr/lib/system/libsystem_kernel.dylib
0xa73e6000 - 0xa7435fdb  libsystem_m.dylib (3147.50.1) <290D02E2-227B-3B0A-BBFC-B14BC657ADE8> /usr/lib/system/libsystem_m.dylib
0xa7436000 - 0xa7450fff  libsystem_malloc.dylib (140.50.6) <970603BE-8A36-3776-81A6-BC1B1D04AC35> /usr/lib/system/libsystem_malloc.dylib
0xa7451000 - 0xa7575ff7  libsystem_network.dylib (1229.70.2) <A9F83B3E-CD61-3DF4-B4C0-D5A916061094> /usr/lib/system/libsystem_network.dylib
0xa7576000 - 0xa7580fff  libsystem_networkextension.dylib (767.70.1) <9E698647-4060-3819-9AE1-4591B18E4CF1> /usr/lib/system/libsystem_networkextension.dylib
0xa7581000 - 0xa7589ff3  libsystem_notify.dylib (172) <27A79E60-9B05-3B28-B389-5759A72F7321> /usr/lib/system/libsystem_notify.dylib
0xa758a000 - 0xa7590ffb  libsystem_platform.dylib (161.50.1) <04C8CF15-A241-3BD8-87B5-DD5DA2DCD564> /usr/lib/system/libsystem_platform.dylib
0xa7591000 - 0xa759bff3  libsystem_pthread.dylib (301.50.1) <95F98870-7DB1-3273-9E61-DEC04059BF18> /usr/lib/system/libsystem_pthread.dylib
0xa759c000 - 0xa759fff3  libsystem_sandbox.dylib (765.70.1) <29C44911-6C21-3F4D-A1EA-D9FB42E289B0> /usr/lib/system/libsystem_sandbox.dylib
0xa75a0000 - 0xa75a2fff  libsystem_secinit.dylib (30) <F11770B6-8928-3F4A-A5B6-1A7E93247738> /usr/lib/system/libsystem_secinit.dylib
0xa75a3000 - 0xa75abff7  libsystem_symptoms.dylib (820.60.2) <4D25AAC1-FC54-374A-91C2-D2EC6676EB44> /usr/lib/system/libsystem_symptoms.dylib
0xa75ac000 - 0xa75beffb  libsystem_trace.dylib (829.70.1) <EB44C21C-EDD7-39EB-A75A-71A16B696364> /usr/lib/system/libsystem_trace.dylib
0xa75c0000 - 0xa75c6fff  libunwind.dylib (35.3) <C9C74974-E6CE-386D-AF72-DC21323AF40B> /usr/lib/system/libunwind.dylib
0xa75c7000 - 0xa75f0ff7  libxpc.dylib (1205.70.9) <5A5515CC-59FF-39AB-A265-E597350855A8> /usr/lib/system/libxpc.dylib

External Modification Summary:
  Calls made by other processes targeting this process:
    task_for_pid: 2
    thread_create: 0
    thread_set_state: 0
  Calls made by this process:
    task_for_pid: 0
    thread_create: 0
    thread_set_state: 0
  Calls made by all processes on this machine:
    task_for_pid: 45358
    thread_create: 0
    thread_set_state: 0

VM Region Summary:
ReadOnly portion of Libraries: Total=256.1M resident=0K(0%) swapped_out_or_unallocated=256.1M(100%)
Writable regions: Total=167.0M written=0K(0%) resident=0K(0%) swapped_out=0K(0%) unallocated=167.0M(100%)
 
                                VIRTUAL   REGION 
REGION TYPE                        SIZE    COUNT (non-coalesced) 
===========                     =======  ======= 
Accelerate framework               128K        2 
Activity Tracing                   256K        2 
CG backing stores                 1376K        6 
CG image                           332K        6 
CG raster data                     260K        2 
CoreAnimation                       80K       10 
CoreGraphics                         8K        2 
CoreImage                           24K        4 
CoreServices                       152K        2 
CoreUI image data                 1764K       14 
CoreUI image file                  188K        5 
Foundation                           4K        2 
Kernel Alloc Once                    8K        2 
MALLOC                           124.7M       41 
MALLOC guard page                   48K       13 
MALLOC_LARGE (reserved)           3800K        2         reserved VM address space (unallocated)
Memory Tag 242                      12K        2 
OpenGL GLSL                        128K        3 
Stack                             15.0M       17 
Stack Guard                       56.1M       17 
VM_ALLOCATE                       19.1M       36 
__DATA                            11.9M      250 
__FONT_DATA                          4K        2 
__GLSLBUILTINS                    2588K        2 
__LINKEDIT                        82.4M       31 
__OBJC                            3184K       85 
__TEXT                           173.6M      248 
__UNICODE                          560K        2 
mapped file                      330.3M      196 
shared memory                      752K       12 
===========                     =======  ======= 
TOTAL                            828.5M      988 
TOTAL, minus reserved VM space   824.8M      988

@Therzok
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Therzok commented Aug 8, 2018 •
edited
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Looking over the gdk pixbuf docs, it seems like the window needs to have a valid colormap:
https://developer.gnome.org/gdk2/stable/gdk2-Pixbufs.html#gdk-pixbuf-get-from-drawable

Inspecting rootWindow.Colormap, it has a size = 0. That probably means it's not a valid colormap.

@Therzok
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Therzok commented Aug 8, 2018

Changing rootWindow.Colormap to Gdk.Colormap.System fixes the crasher.

@Therzok
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Therzok commented Aug 8, 2018

Not sure if we can detect an invalid colormap on managed side.

@Therzok
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Therzok commented Aug 9, 2018

Closing the issue as per previous comments

@Therzok Therzok closed this as completed Aug 9, 2018
@MarcosCobena
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Hi @Therzok,

Thanks so much in advance for taking time to work on this, it's really appreciated!

Unfortunately, it doesn't seem to fix the bug. I still get crashes changing colormaps and even get the app working when its size is 0 but I've set the main monitor to the external one.

It's true the attached project doesn't crash as often as our original app, but the stack traces are identical. I guess the memory pressure's higher in this last one.

Would it be possible you could help us a little bit more on this? Would it make sense if I share with you the main project?

Thanks again!

@MarcosCobena
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PS: I've sent you an e-mail to your Microsoft account, just in case :-)

@Therzok Therzok reopened this Aug 9, 2018
@Therzok
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Therzok commented Aug 9, 2018

Yes, definitely, able to help. I'm curious about what's going on too!

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Therzok commented Aug 9, 2018 

            var rootWindow = Screen.Default.RootWindow;
            int src_x, src_y, wnd_width, wnd_height;
            rootWindow.GetRootOrigin(out src_x, out src_y);
            rootWindow.GetSize(out wnd_width, out wnd_height);
            var screenshot = Pixbuf.FromDrawable(rootWindow, rootWindow.Colormap, src_x, src_y, 0, 0, wnd_width, wnd_height);

I made it not crash, but still pixels with 0 data, looping in @bratsche

@MarcosCobena
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Hey let me loop my mates as well @juanlao @jsuarezruiz

Thanks again for taking care of this 👍

@MarcosCobena
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Hi everyone!

We've finally gone with taking screenshots through Xamarin.Mac —and it works quite good:

https://gist.github.com/MarcosCobena/b4768bacc1a112a4f38a9d11a19f1251

However, it'd be great if this issue could be solved from Gtk# :-)

Thanks for your work!

@Therzok
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Therzok commented Aug 28, 2018

@bratsche ping

@Therzok
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Therzok commented Sep 21, 2018

@bratsche ping again

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