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Debugging SwiftUI Framework crash.
Hi everyone, I am seeing a crash right now in my app that's related to the SwiftUI Framework. Has anyone else come across this crash? I can't reproduce the crash in my app and I've tried profiling my app to see if I could find ViewCache or IncrementalStack but they're nowhere to be found. Here's the stacktrace Exception Type: EXC_BREAKPOINT (SIGTRAP) Exception Codes: 0x0000000000000001, 0x0000000191adae78 Termination Reason: SIGNAL 5 Trace/BPT trap: 5 Terminating Process: exc handler [4017] Triggered by Thread: 0 Kernel Triage: VM - pmap_enter retried due to resource shortage Thread 0 name: Thread 0 Crashed: 0 SwiftUI 0x0000000191adae78 ViewCache.item(data:) + 3484 (IncrementalLayout.swift:0) 1 SwiftUI 0x00000001920c2894 closure #2 in IncrementalStack<>.prefetch(children:edges:context:state:) + 64 (IncrementalLayout.swift:514) 2 SwiftUI 0x0000000192f61944 $s7SwiftUI6HVGrid33_31F43AFD49DC183BC0BAE157829FFC07LLPAAE5place8children6length13minorGeometry4emitySayAA24_IncrementalLayout_ChildVG_12CoreGraphics7CGFloatVSgSayAA0cN0ACLLVGyAK_So7CGPointVAA13_Pr... + 200 3 SwiftUI 0x0000000192f61bac protocol witness for IncrementalStack.place(children:length:minorGeometry:emit:) in conformance LazyHGridLayout + 76 4 SwiftUI 0x0000000192f61b54 protocol witness for IncrementalStack.place(children:length:minorGeometry:emit:) in conformance LazyVGridLayout + 56 5 SwiftUI 0x0000000191c937d8 $s7SwiftUI16IncrementalStackPA2A01_cD6_StateVyxG0E0RtzrlE8prefetch8children5edges7context5stateyAA01_C15Layout_ChildrenV_AA4EdgeO3SetVAA01_cK17_PlacementContextVAFtFAA09LazyVGridK033_31F43AFD49DC18... + 340 (IncrementalStack.swift:700) 6 SwiftUI 0x0000000191c9daa0 specialized closure #1 in closure #1 in IncrementalChildPrefetcher.updateValue() + 444 (<compiler-generated>:0) 7 SwiftUI 0x0000000191c9d688 specialized IncrementalChildPrefetcher.updateValue() + 216 8 SwiftUI 0x0000000191ec2a08 partial apply for specialized implicit closure #2 in implicit closure #1 in closure #1 in closure #1 in Attribute.init<A>(_:) + 44 (<compiler-generated>:0) 9 AttributeGraph 0x00000001b10286f4 AG::Graph::UpdateStack::update() + 520 (ag-closure.h:109) 10 AttributeGraph 0x00000001b1027f44 AG::Graph::update_attribute(AG::data::ptr<AG::Node>, unsigned int) + 424 (ag-graph-update.cc:714) 11 AttributeGraph 0x00000001b1026c00 AG::Subgraph::update(unsigned int) + 844 (ag-subgraph.cc:734) 12 SwiftUI 0x00000001919ef4a8 GraphHost.flushTransactions() + 572 (GraphHost.swift:640) 13 SwiftUI 0x0000000191ab7134 thunk for @escaping @callee_guaranteed () -> () + 28 (<compiler-generated>:0) 14 SwiftUI 0x00000001923a8108 static Update.dispatchActions() + 572 (<compiler-generated>:0) 15 SwiftUI 0x00000001919eade8 static Update.end() + 116 (Update.swift:58) 16 SwiftUI 0x00000001929747ac SystemScrollViewPrefetchState.commit(to:) + 344 (Update.swift:71) 17 SwiftUI 0x0000000192bde314 HostingScrollView._updateCycleIdle(until:) + 208 (HostingScrollView_PhoneTVWatch.swift:632) 18 SwiftUI 0x0000000192bde354 @objc HostingScrollView._updateCycleIdle(until:) + 40 (<compiler-generated>:0) 19 UIKitCore 0x0000000190266544 ___UIUpdateCycleNotifyIdle_block_invoke + 612 (_UIUpdateCycleIdleScheduler.m:148) 20 libdispatch.dylib 0x000000019562b4b4 _dispatch_call_block_and_release + 32 (init.c:1518) 21 libdispatch.dylib 0x000000019562cfdc _dispatch_client_callout + 20 (object.m:560) 22 libdispatch.dylib 0x000000019563b7f4 _dispatch_main_queue_drain + 928 (inline_internal.h:2632) 23 libdispatch.dylib 0x000000019563b444 _dispatch_main_queue_callback_4CF + 44 (queue.c:7887) 24 CoreFoundation 0x000000018e0aa6d8 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 16 (CFRunLoop.c:1780) 25 CoreFoundation 0x000000018e08c03c __CFRunLoopRun + 2036 (CFRunLoop.c:3147) 26 CoreFoundation 0x000000018e090ec0 CFRunLoopRunSpecific + 612 (CFRunLoop.c:3418) 27 GraphicsServices 0x00000001c80e7368 GSEventRunModal + 164 (GSEvent.c:2196) 28 UIKitCore 0x000000019058686c -[UIApplication _run] + 888 (UIApplication.m:3754) 29 UIKitCore 0x00000001905864d0 UIApplicationMain + 340 (UIApplication.m:5344) 30 Zumper 0x0000000104bfc064 main + 68 (AppDelegate.swift:38) 31 dyld 0x00000001ac8b2960 start + 2528 (dyldMain.cpp:1170)
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Jan ’23