Crashing using offscreen rendering with Xcode16.3+ with Main Thread Checker or Thread Performance Checker #1722
Description
Observed behavior
The iOS sample app crashes within about 1 to 2 minutes after launch.
Expected behavior
To continue camera capture without crashing.
To Reproduce
Xcode 16.4 and the following conditions:
- Build the iOS version of the Example app in Xcode and run it in debug mode.
- Leave it running for about 1 or 2 minutes.
- A crash occurs.
Version
- Xcode16.4
Smartphone info.
- iPhone 16 Pro max + iOS18.4
Additional context
Xcode16.4
- Main Thread Checker -> ON
- Thread Performace Cheker -> ON
Screenshots
Relevant log output
#0 0x00000001046cf284 in std::__1::__hash_table<std::__1::__hash_value_type<long, qos_info_t>, std::__1::__unordered_map_hasher<long, std::__1::__hash_value_type<long, qos_info_t>, std::__1::hash<long>, std::__1::equal_to<long>, true>, std::__1::__unordered_map_equal<long, std::__1::__hash_value_type<long, qos_info_t>, std::__1::equal_to<long>, std::__1::hash<long>, true>, std::__1::allocator<std::__1::__hash_value_type<long, qos_info_t>>>::__emplace_unique_key_args<long, std::__1::piecewise_construct_t const&, std::__1::tuple<long const&>, std::__1::tuple<>> ()
#1 0x00000001046ceda8 in qosWaiterSignallerInvariantCheck ()
#2 0x00000001046c9614 in interposed_dispatch_group_wait ()
#3 0x00000001a18c7ef0 in invocation function for block in CI::Context::recursive_render(CI::TileTask*, CI::roiKey const&, CI::Node*, bool) ()
#4 0x0000000104da8584 in _dispatch_call_block_and_release ()
#5 0x0000000104dc2064 in _dispatch_client_callout ()
#6 0x0000000104db091c in _dispatch_lane_serial_drain ()
#7 0x0000000104db15d8 in _dispatch_lane_invoke ()
#8 0x0000000104dbd894 in _dispatch_root_queue_drain_deferred_wlh ()
#9 0x0000000104dbceb0 in _dispatch_workloop_worker_thread ()
#10 0x000000021b0ed660 in _pthread_wqthread ()
Enqueued from com.apple.root.user-initiated-qos.cooperative (Thread 15) Queue : com.apple.root.user-initiated-qos.cooperative (serial)
#0 0x0000000104dada3c in dispatch_async ()
#1 0x00000001a18c0828 in CI::Context::recursive_render ()
#2 0x00000001a18d20e4 in CI::Context::render ()
#3 0x00000001a18d1d2c in invocation function for block in CI::image_render_to_bitmap(CI::Context*, CI::Image*, CGRect, CGColorSpace*, CI::Bitmap*, CI::RenderDestination const*) ()
#4 0x00000001a18a22cc in CI::recursive_tile ()
#5 0x00000001a1891e24 in CI::tile_node_graph ()
#6 0x00000001a18b3968 in CI::image_render_to_bitmap ()
#7 0x00000001a18ca8ac in CI::RenderToBitmap::render ()
#8 0x00000001a1895b10 in -[CIContext(CIRenderDestination) _startTaskToRender:toDestination:forPrepareRender:forClear:error:] ()
#9 0x00000001a18b31d0 in -[CIContext(CIRenderDestination) startTaskToRender:fromRect:toDestination:atPoint:error:] ()
#10 0x00000001a18c8f08 in -[CIContext(_createCGImageInternal) _createCGImage:fromRect:format:premultiplied:colorSpace:deferred:renderCallback:] ()
#11 0x00000001a18c82d0 in -[CIContext(createCGImage) createCGImage:fromRect:] ()
#12 0x0000000105ebd1f0 in VideoTrackScreenObject.makeImage<τ_0_0>(_:) at /Users//Documents/GitHub/HaishinKit.swift/HaishinKit/Sources/Screen/ScreenObject.swift:293
#13 0x0000000105eca2dc in closure #1 in ScreenRendererByCPU.layout(_:) at /Users//Documents/GitHub/HaishinKit.swift/HaishinKit/Sources/Screen/ScreenRenderer.swift:134
#14 0x0000000105ecbbe4 in partial apply for closure #1 in ScreenRendererByCPU.layout(_:) ()
#15 0x0000000105ecac2c in autoreleasepool<τ_0_0, τ_0_1>(invoking:) ()
#16 0x0000000105eca13c in ScreenRendererByCPU.layout(_:) at /Users//Documents/GitHub/HaishinKit.swift/HaishinKit/Sources/Screen/ScreenRenderer.swift:133
#17 0x0000000105ecb688 in protocol witness for ScreenRenderer.layout(_:) in conformance ScreenRendererByCPU ()
#18 0x0000000105eba604 in ScreenObject.layout<τ_0_0>(_:) at /Users//Documents/GitHub/HaishinKit.swift/HaishinKit/Sources/Screen/ScreenObject.swift:138
#19 0x0000000105ec6688 in closure #1 in ScreenObjectContainer.layout<τ_0_0>(_:) at /Users//Documents/GitHub/HaishinKit.swift/HaishinKit/Sources/Screen/ScreenObjectContainer.swift:55
#20 0x0000000105ec66d8 in partial apply for closure #1 in ScreenObjectContainer.layout<A>(_:) ()
#21 0x000000018f2e6098 in Swift.Sequence.forEach((τ_0_0.Element) throws -> ()) throws -> () ()
#22 0x0000000105ec64d4 in ScreenObjectContainer.layout<τ_0_0>(_:) at /Users//Documents/GitHub/HaishinKit.swift/HaishinKit/Sources/Screen/ScreenObjectContainer.swift:53
#23 0x0000000105eb7fc0 in Screen.render(_:) at /Users//Documents/GitHub/HaishinKit.swift/HaishinKit/Sources/Screen/Screen.swift:181
#24 0x0000000105eb78e0 in Screen.makeSampleBuffer(_:) at /Users//Documents/GitHub/HaishinKit.swift/HaishinKit/Sources/Screen/Screen.swift:164
#25 0x0000000105e11328 in closure #2 in MediaMixer.setVideoRenderingMode(_:) at /Users//Documents/GitHub/HaishinKit.swift/HaishinKit/Sources/Mixer/MediaMixer.swift:368
#26 0x000000019c715134 in swift::runJobInEstablishedExecutorContext ()
#27 0x000000019c7165c8 in swift_job_runImpl ()
#28 0x0000000104dbbf30 in _dispatch_root_queue_drain ()
#29 0x0000000104dbc8c8 in _dispatch_worker_thread2 ()
#30 0x000000021b0ed624 in _pthread_wqthread ()
#31 0x000000021b0ea9f8 in start_wqthread ()