Digital Chaotic System crashes Rack 2.4.1 on Mac arm64 on add

[fractalgee]

Trying to add the Digital Chaotic System module to a patch crashes Rack with the following stack:

Thread 9 Crashed::  Dispatch queue: com.Metal.CompletionQueueDispatch
0   libobjc.A.dylib               	       0x187c8d420 objc_msgSend + 32
1   Metal                         	       0x1921d7cc8 -[_MTLCommandQueue commandBufferDidComplete:startTime:completionTime:error:] + 80
2   IOGPU                         	       0x1a6975b54 IOGPUNotificationQueueDispatchAvailableCompletionNotifications + 128
3   IOGPU                         	       0x1a6975c60 __IOGPUNotificationQueueSetDispatchQueue_block_invoke + 64
4   libdispatch.dylib             	       0x187ea89d0 _dispatch_client_callout4 + 20
5   libdispatch.dylib             	       0x187ec4c5c _dispatch_mach_msg_invoke + 468
6   libdispatch.dylib             	       0x187eafd28 _dispatch_lane_serial_drain + 368
7   libdispatch.dylib             	       0x187ec5998 _dispatch_mach_invoke + 444
8   libdispatch.dylib             	       0x187eafd28 _dispatch_lane_serial_drain + 368
9   libdispatch.dylib             	       0x187eb0a08 _dispatch_lane_invoke + 432
10  libdispatch.dylib             	       0x187eafd28 _dispatch_lane_serial_drain + 368
11  libdispatch.dylib             	       0x187eb09d4 _dispatch_lane_invoke + 380
12  libdispatch.dylib             	       0x187ebb61c _dispatch_root_queue_drain_deferred_wlh + 288
13  libdispatch.dylib             	       0x187ebae90 _dispatch_workloop_worker_thread + 404
14  libsystem_pthread.dylib       	       0x188056114 _pthread_wqthread + 288
15  libsystem_pthread.dylib       	       0x188054e30 start_wqthread + 8

MacOS 14.2, Mac Mini M1, Rack 2.4.1

[nullJaX]

Hi,
Unfortunately, I don't own any Mac machine. Is it possible for you to post more info/logs/stacktrace here?

[fractalgee]

Hmm, Just tried again, and now it hangs Rack hard with just this in the log.txt of Rack:

[16.040 info src/app/Browser.cpp:89 chooseModel] Creating module Patchable Devices Digital Chaotic System
[16.040 info src/app/Browser.cpp:93 chooseModel] Creating module widget Patchable Devices Digital Chaotic System

Stack is (however I had to kill the app as it was hung hard) :

Thread 0 Crashed::  Dispatch queue: com.apple.main-thread
0   libsystem_platform.dylib      	       0x18ce001c0 _os_unfair_lock_recursive_abort + 36
1   libsystem_platform.dylib      	       0x18cdfb778 _os_unfair_lock_lock_slow + 316
2   libsystem_malloc.dylib        	       0x18cbe549c tiny_malloc_should_clear + 128
3   libsystem_malloc.dylib        	       0x18cbe42c8 szone_malloc_should_clear + 92
4   libsystem_c.dylib             	       0x18cc75958 backtrace_symbols + 60
5   libRack.dylib                 	       0x103189354 rack::system::getStackTrace() + 88
6   Rack                          	       0x10233ee60 fatalSignalHandler(int) + 40
7   libsystem_platform.dylib      	       0x18cdfda24 _sigtramp + 56
8   libsystem_malloc.dylib        	       0x18cbe80c8 tiny_free_no_lock + 144
9   libsystem_malloc.dylib        	       0x18cbe7eb4 free_tiny + 496
10  libsystem_c.dylib             	       0x18cc75a94 backtrace_symbols + 376
11  libRack.dylib                 	       0x103189354 rack::system::getStackTrace() + 88
12  Rack                          	       0x10233ee60 fatalSignalHandler(int) + 40
13  libsystem_platform.dylib      	       0x18cdfda24 _sigtramp + 56
14  libRack.dylib                 	       0x1031da9ac rack::app::RackWidget::updateModuleOldPositions() + 184
15  libRack.dylib                 	       0x103222f58 rack::widget::EventState::handleButton(rack::math::Vec, int, int, int) + 180
16  libRack.dylib                 	       0x1032258e4 rack::window::mouseButtonCallback(GLFWwindow*, int, int, int) + 188
17  AppKit                        	       0x1908272d0 -[NSWindow(NSEventRouting) _handleMouseDownEvent:isDelayedEvent:] + 3472
18  AppKit                        	       0x1907b279c -[NSWindow(NSEventRouting) _reallySendEvent:isDelayedEvent:] + 364
19  AppKit                        	       0x1907b245c -[NSWindow(NSEventRouting) sendEvent:] + 284
20  AppKit                        	       0x190e5f9f4 -[NSApplication(NSEventRouting) sendEvent:] + 1604
21  libRack.dylib                 	       0x1032ebe60 _glfwPollEventsCocoa + 140
22  libRack.dylib                 	       0x1032260b0 rack::window::Window::step() + 144
23  libRack.dylib                 	       0x103226008 rack::window::Window::run() + 40
24  Rack                          	       0x10233e7e0 main + 3428
25  dyld                          	       0x18ca4d0e0 start + 2360

I'll keep trying to see if I can get you more info. Only difference between then and now is that I now run MacOS 14.2.1 instead of 14.2. Not sure what in that update might cause the different behaviour as I see nothing in the changelog that would explain this.

[fractalgee]

FYI, I pinged Christoph Schol, who does the integration testing for Rack modules, so hope he can shed some more light on this to help track this down, as I just get a hard hang when trying to add this.

[cschol]

Tested with macOS 13.6.2 Ventura on M2 amd64 and it works fine for me.

Might be an issue with macOS Sonoma? No way for me to test though.

[bubbleandsquawk]

Also macOS 13.6.2 Ventura on M2 amd64 here, but crashing.