Alexey,
Thanks for your reply.
Sure, here it is:
(lldb) bt all
* thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
* frame #0: 0x00000001db7aa1cc libsystem_kernel.dylib`__psynch_cvwait + 8
frame #1: 0x00000001ef5096e4 libsystem_pthread.dylib`_pthread_cond_wait +
1228
frame #2: 0x0000000103e04bc4
BAM`QWaitConditionPrivate::wait(QDeadlineTimer) + 64
frame #3: 0x0000000103e04b18 BAM`QWaitCondition::wait(QMutex*,
QDeadlineTimer) + 148
frame #4: 0x000000010313a960
BAM`QSGThreadedRenderLoop::polishAndSync(QSGThreadedRenderLoop::Window*, bool)
+ 1544
frame #5: 0x000000010313ae38
BAM`QSGThreadedRenderLoop::handleUpdateRequest(QQuickWindow*) + 364
frame #6: 0x0000000102fd8ad0 BAM`QQuickWindow::event(QEvent*) + 2608
frame #7: 0x0000000103cde3d8
BAM`QCoreApplicationPrivate::notify_helper(QObject*, QEvent*) + 384
frame #8: 0x0000000103cde1a0
BAM`QCoreApplication::notifyInternal2(QObject*, QEvent*) + 292
frame #9: 0x00000001032de3d4 BAM`QPlatformWindow::deliverUpdateRequest() +
68
frame #10: 0x00000001028abb84 BAM`QIOSScreen::deliverUpdateRequests() const
+ 148
frame #11: 0x0000000193e17ecc
QuartzCore`CA::Display::DisplayLinkItem::dispatch_(CA::SignPost::Interval<(CA::SignPost::CAEventCode)835322056>&)
+ 48
frame #12: 0x0000000193e16230
QuartzCore`CA::Display::DisplayLink::dispatch_items(unsigned long long,
unsigned long long, unsigned long long) + 876
frame #13: 0x0000000193e15dd0
QuartzCore`CA::Display::DisplayLink::dispatch_deferred_display_links(unsigned
int) + 352
frame #14: 0x0000000194a0d76c UIKitCore`_UIUpdateSequenceRun + 84
frame #15: 0x0000000194a0d3b0 UIKitCore`schedulerStepScheduledMainSection +
172
frame #16: 0x0000000194a0e254 UIKitCore`runloopSourceCallback + 92
frame #17: 0x000000019272b834
CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28
frame #18: 0x000000019272b7c8 CoreFoundation`__CFRunLoopDoSource0 + 176
frame #19: 0x0000000192729298 CoreFoundation`__CFRunLoopDoSources0 + 244
frame #20: 0x0000000192728484 CoreFoundation`__CFRunLoopRun + 828
frame #21: 0x0000000192727cd8 CoreFoundation`CFRunLoopRunSpecific + 608
frame #22: 0x00000001d75d81a8 GraphicsServices`GSEventRunModal + 164
frame #23: 0x0000000194d6090c UIKitCore`-[UIApplication _run] + 888
frame #24: 0x0000000194e149d0 UIKitCore`UIApplicationMain + 340
frame #25: 0x00000001028a35cc BAM`qt_main_wrapper + 800
frame #26: 0x00000001b5dd9e4c dyld`start + 2240
thread #2, queue = 'com.Metal.CommandQueueDispatch'
frame #0: 0x000000019b086558 IOKit`iokit_user_client_trap + 8
frame #1: 0x000000020e946b8c IOGPU`IOGPUCommandQueueSubmitCommandBuffers +
164
frame #2: 0x000000020e94687c IOGPU`-[IOGPUMetalCommandQueue
_submitCommandBuffers:count:] + 356
frame #3: 0x000000020e9466f0 IOGPU`-[IOGPUMetalCommandQueue
submitCommandBuffers:count:] + 72
frame #4: 0x00000001922d7ad4 Metal`-[_MTLCommandQueue
_submitAvailableCommandBuffers] + 504
frame #5: 0x00000001085be7bc libdispatch.dylib`_dispatch_client_callout + 20
frame #6: 0x00000001085c18e0 libdispatch.dylib`_dispatch_continuation_pop +
676
frame #7: 0x00000001085d8cc8
libdispatch.dylib`_dispatch_source_latch_and_call + 480
frame #8: 0x00000001085d7718 libdispatch.dylib`_dispatch_source_invoke + 860
frame #9: 0x00000001085c64a4 libdispatch.dylib`_dispatch_lane_serial_drain
+ 376
frame #10: 0x00000001085c7408 libdispatch.dylib`_dispatch_lane_invoke + 408
frame #11: 0x00000001085d4404
libdispatch.dylib`_dispatch_root_queue_drain_deferred_wlh + 328
frame #12: 0x00000001085d3a38
libdispatch.dylib`_dispatch_workloop_worker_thread + 444
frame #13: 0x00000001ef50a934 libsystem_pthread.dylib`_pthread_wqthread +
288
thread #5
frame #0: 0x00000001ef5070c4 libsystem_pthread.dylib`start_wqthread
thread #7, name = 'com.apple.uikit.eventfetch-thread'
frame #0: 0x00000001db7a4808 libsystem_kernel.dylib`mach_msg2_trap + 8
frame #1: 0x00000001db7a8008 libsystem_kernel.dylib`mach_msg2_internal + 80
frame #2: 0x00000001db7a7f20 libsystem_kernel.dylib`mach_msg_overwrite + 436
frame #3: 0x00000001db7a7d60 libsystem_kernel.dylib`mach_msg + 24
frame #4: 0x0000000192728f5c CoreFoundation`__CFRunLoopServiceMachPort + 160
frame #5: 0x0000000192728600 CoreFoundation`__CFRunLoopRun + 1208
frame #6: 0x0000000192727cd8 CoreFoundation`CFRunLoopRunSpecific + 608
frame #7: 0x0000000191648e4c Foundation`-[NSRunLoop(NSRunLoop)
runMode:beforeDate:] + 212
frame #8: 0x0000000191648c9c Foundation`-[NSRunLoop(NSRunLoop)
runUntilDate:] + 64
frame #9: 0x0000000194d74640 UIKitCore`-[UIEventFetcher threadMain] + 420
frame #10: 0x000000019165f718 Foundation`__NSThread__start__ + 732
frame #11: 0x00000001ef50c06c libsystem_pthread.dylib`_pthread_start + 136
thread #8
frame #0: 0x00000001ef5070c4 libsystem_pthread.dylib`start_wqthread
thread #10, name = 'Link Main'
frame #0: 0x00000001db7ab608 libsystem_kernel.dylib`kevent + 8
frame #1: 0x00000001024f6e50
BAM`link_asio_1_28_0::detail::kqueue_reactor::run(long,
link_asio_1_28_0::detail::op_queue<link_asio_1_28_0::detail::scheduler_operation>&)
+ 300
frame #2: 0x00000001024f8340
BAM`link_asio_1_28_0::detail::scheduler::do_run_one(link_asio_1_28_0::detail::conditionally_enabled_mutex::scoped_lock&,
link_asio_1_28_0::detail::scheduler_thread_info&, std::__1::error_code const&)
+ 296
frame #3: 0x00000001024f80b4
BAM`link_asio_1_28_0::detail::scheduler::run(std::__1::error_code&) + 268
frame #4: 0x00000001024f8cf4
BAM`ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>::Context<ableton::link::Controller<std::__1::function<void
(unsigned long)>, std::__1::function<void (ableton::link::Tempo)>,
std::__1::function<void (bool)>, ableton::platforms::darwin::Clock,
ableton::platforms::stl::Random,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>>::UdpSendExceptionHandler>(ableton::link::Controller<std::__1::function<void
(unsigned long)>, std::__1::function<void (ableton::link::Tempo)>,
std::__1::function<void (bool)>, ableton::platforms::darwin::Clock,
ableton::platforms::stl::Random,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>>::UdpSendExceptionHandler)::'lambda'(link_asio_1_28_0::io_context&,
ableton::link::Controller<std::__1::function<void (unsigned long)>,
std::__1::function<void (ableton::link::Tempo)>, std::__1::function<void
(bool)>, ableton::platforms::darwin::Clock, ableton::platforms::stl::Random,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>>::UdpSendExceptionHandler)::operator()(link_asio_1_28_0::io_context&,
ableton::link::Controller<std::__1::function<void (unsigned long)>,
std::__1::function<void (ableton::link::Tempo)>, std::__1::function<void
(bool)>, ableton::platforms::darwin::Clock, ableton::platforms::stl::Random,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>>::UdpSendExceptionHandler) const +
120
frame #5: 0x00000001024f8b48 BAM`void*
std::__1::__thread_proxy[abi:v160006]<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct,
std::__1::default_delete<std::__1::__thread_struct>>, std::__1::thread
ableton::platforms::darwin::ThreadFactory::makeThread<ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>::Context<ableton::link::Controller<std::__1::function<void
(unsigned long)>, std::__1::function<void (ableton::link::Tempo)>,
std::__1::function<void (bool)>, ableton::platforms::darwin::Clock,
ableton::platforms::stl::Random,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>>::UdpSendExceptionHandler>(ableton::link::Controller<std::__1::function<void
(unsigned long)>, std::__1::function<void (ableton::link::Tempo)>,
std::__1::function<void (bool)>, ableton::platforms::darwin::Clock,
ableton::platforms::stl::Random,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>>::UdpSendExceptionHandler)::'lambda'(link_asio_1_28_0::io_context&,
ableton::link::Controller<std::__1::function<void (unsigned long)>,
std::__1::function<void (ableton::link::Tempo)>, std::__1::function<void
(bool)>, ableton::platforms::darwin::Clock, ableton::platforms::stl::Random,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>>::UdpSendExceptionHandler),
std::__1::reference_wrapper<link_asio_1_28_0::io_context>,
ableton::link::Controller<std::__1::function<void (unsigned long)>,
std::__1::function<void (ableton::link::Tempo)>, std::__1::function<void
(bool)>, ableton::platforms::darwin::Clock, ableton::platforms::stl::Random,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>>::UdpSendExceptionHandler>(std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char>>,
ableton::link::Controller<std::__1::function<void (unsigned long)>,
std::__1::function<void (ableton::link::Tempo)>, std::__1::function<void
(bool)>, ableton::platforms::darwin::Clock, ableton::platforms::stl::Random,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>>::UdpSendExceptionHandler&&,
std::__1::reference_wrapper<link_asio_1_28_0::io_context>&&,
ableton::link::Controller<std::__1::function<void (unsigned long)>,
std::__1::function<void (ableton::link::Tempo)>, std::__1::function<void
(bool)>, ableton::platforms::darwin::Clock, ableton::platforms::stl::Random,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>>::UdpSendExceptionHandler&&)::'lambda'(std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char>>,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>::Context<ableton::link::Controller<std::__1::function<void
(unsigned long)>, std::__1::function<void (ableton::link::Tempo)>,
std::__1::function<void (bool)>, ableton::platforms::darwin::Clock,
ableton::platforms::stl::Random,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>>::UdpSendExceptionHandler>(ableton::link::Controller<std::__1::function<void
(unsigned long)>, std::__1::function<void (ableton::link::Tempo)>,
std::__1::function<void (bool)>, ableton::platforms::darwin::Clock,
ableton::platforms::stl::Random,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>>::UdpSendExceptionHandler)::'lambda'(link_asio_1_28_0::io_context&,
ableton::link::Controller<std::__1::function<void (unsigned long)>,
std::__1::function<void (ableton::link::Tempo)>, std::__1::function<void
(bool)>, ableton::platforms::darwin::Clock, ableton::platforms::stl::Random,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>>::UdpSendExceptionHandler)&&,
std::__1::reference_wrapper<link_asio_1_28_0::io_context>&&,
ableton::link::Controller<std::__1::function<void (unsigned long)>,
std::__1::function<void (ableton::link::Tempo)>, std::__1::function<void
(bool)>, ableton::platforms::darwin::Clock, ableton::platforms::stl::Random,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>>::UdpSendExceptionHandler&&),
std::__1::basic_string<char, std::__1::char_traits<char>,
std::__1::allocator<char>>,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>::Context<ableton::link::Controller<std::__1::function<void
(unsigned long)>, std::__1::function<void (ableton::link::Tempo)>,
std::__1::function<void (bool)>, ableton::platforms::darwin::Clock,
ableton::platforms::stl::Random,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>>::UdpSendExceptionHandler>(ableton::link::Controller<std::__1::function<void
(unsigned long)>, std::__1::function<void (ableton::link::Tempo)>,
std::__1::function<void (bool)>, ableton::platforms::darwin::Clock,
ableton::platforms::stl::Random,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>>::UdpSendExceptionHandler)::'lambda'(link_asio_1_28_0::io_context&,
ableton::link::Controller<std::__1::function<void (unsigned long)>,
std::__1::function<void (ableton::link::Tempo)>, std::__1::function<void
(bool)>, ableton::platforms::darwin::Clock, ableton::platforms::stl::Random,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>>::UdpSendExceptionHandler),
std::__1::reference_wrapper<link_asio_1_28_0::io_context>,
ableton::link::Controller<std::__1::function<void (unsigned long)>,
std::__1::function<void (ableton::link::Tempo)>, std::__1::function<void
(bool)>, ableton::platforms::darwin::Clock, ableton::platforms::stl::Random,
ableton::platforms::link_asio_1_28_0::Context<ableton::platforms::posix::ScanIpIfAddrs,
ableton::util::NullLog,
ableton::platforms::darwin::ThreadFactory>>::UdpSendExceptionHandler>>(void*) +
104
frame #6: 0x00000001ef50c06c libsystem_pthread.dylib`_pthread_start + 136
thread #11, name = 'Link Dispatcher'
frame #0: 0x00000001db7aa1cc libsystem_kernel.dylib`__psynch_cvwait + 8
frame #1: 0x00000001ef5096e4 libsystem_pthread.dylib`_pthread_cond_wait +
1228
frame #2: 0x00000001a2b0e598
libc++.1.dylib`std::__1::condition_variable::__do_timed_wait(std::__1::unique_lock<std::__1::mutex>&,
std::__1::chrono::time_point<std::__1::chrono::system_clock,
std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l>>>) + 100
frame #3: 0x00000001025174f0
BAM`ableton::platforms::link_asio_1_28_0::LockFreeCallbackDispatcher<std::__1::function<void
()>, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000l>>,
ableton::platforms::darwin::ThreadFactory>::run() + 304
frame #4: 0x00000001025172c0 BAM`void*
std::__1::__thread_proxy[abi:v160006]<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct,
std::__1::default_delete<std::__1::__thread_struct>>, std::__1::thread
ableton::platforms::darwin::ThreadFactory::makeThread<ableton::platforms::link_asio_1_28_0::LockFreeCallbackDispatcher<std::__1::function<void
()>, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000l>>,
ableton::platforms::darwin::ThreadFactory>::LockFreeCallbackDispatcher(std::__1::function<void
()>, std::__1::chrono::duration<long long, std::__1::ratio<1l,
1000l>>)::'lambda'()>(std::__1::basic_string<char, std::__1::char_traits<char>,
std::__1::allocator<char>>,
ableton::platforms::link_asio_1_28_0::LockFreeCallbackDispatcher<std::__1::function<void
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ableton::platforms::darwin::ThreadFactory>::LockFreeCallbackDispatcher(std::__1::function<void
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1000l>>)::'lambda'()&&)::'lambda'(std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char>>,
ableton::platforms::link_asio_1_28_0::LockFreeCallbackDispatcher<std::__1::function<void
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ableton::platforms::darwin::ThreadFactory>::LockFreeCallbackDispatcher(std::__1::function<void
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1000l>>)::'lambda'()&&), std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char>>,
ableton::platforms::link_asio_1_28_0::LockFreeCallbackDispatcher<std::__1::function<void
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ableton::platforms::darwin::ThreadFactory>::LockFreeCallbackDispatcher(std::__1::function<void
()>, std::__1::chrono::duration<long long, std::__1::ratio<1l,
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frame #5: 0x00000001ef50c06c libsystem_pthread.dylib`_pthread_start + 136
thread #12, name = 'com.apple.CFSocket.private'
frame #0: 0x00000001db7ac474 libsystem_kernel.dylib`__select + 8
frame #1: 0x0000000192793b7c CoreFoundation`__CFSocketManager + 640
frame #2: 0x00000001ef50c06c libsystem_pthread.dylib`_pthread_start + 136
thread #13
frame #0: 0x00000001db7a4808 libsystem_kernel.dylib`mach_msg2_trap + 8
frame #1: 0x00000001db7a8008 libsystem_kernel.dylib`mach_msg2_internal + 80
frame #2: 0x00000001db7a7f20 libsystem_kernel.dylib`mach_msg_overwrite + 436
frame #3: 0x00000001db7a7d60 libsystem_kernel.dylib`mach_msg + 24
frame #4: 0x00000001e489d418 CoreMIDI`XServerMachPort::ReceiveMessage(int&,
void*, int&) + 104
frame #5: 0x00000001e48ae4f4 CoreMIDI`MIDIProcess::MIDIInPortThread::Run()
+ 156
frame #6: 0x00000001e48abda0
CoreMIDI`CADeprecated::XThread::RunHelper(void*) + 48
frame #7: 0x00000001e48ada80
CoreMIDI`CADeprecated::CAPThread::Entry(CADeprecated::CAPThread*) + 92
frame #8: 0x00000001ef50c06c libsystem_pthread.dylib`_pthread_start + 136
thread #14, name = 'QQmlThread'
frame #0: 0x00000001db7b9268 libsystem_kernel.dylib`poll + 8
frame #1: 0x0000000103df6c38 BAM`qt_safe_poll(pollfd*, unsigned int,
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frame #2: 0x0000000103df7e00
BAM`QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
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frame #3: 0x0000000103ce507c
BAM`QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 608
frame #4: 0x0000000103d86c84 BAM`QThread::exec() + 264
frame #5: 0x0000000103dfbfd4 BAM`QThreadPrivate::start(void*) + 360
frame #6: 0x00000001ef50c06c libsystem_pthread.dylib`_pthread_start + 136
thread #15, name = 'Thread (pooled)'
frame #0: 0x00000001db7aa1cc libsystem_kernel.dylib`__psynch_cvwait + 8
frame #1: 0x00000001ef5096e4 libsystem_pthread.dylib`_pthread_cond_wait +
1228
frame #2: 0x0000000103e04c54
BAM`QWaitConditionPrivate::wait(QDeadlineTimer) + 208
frame #3: 0x0000000103e04b18 BAM`QWaitCondition::wait(QMutex*,
QDeadlineTimer) + 148
frame #4: 0x0000000103dff7c0 BAM`QThreadPoolThread::run() + 896
frame #5: 0x0000000103dfbfd4 BAM`QThreadPrivate::start(void*) + 360
frame #6: 0x00000001ef50c06c libsystem_pthread.dylib`_pthread_start + 136
thread #16, name = 'Thread (pooled)'
frame #0: 0x00000001db7aa1cc libsystem_kernel.dylib`__psynch_cvwait + 8
frame #1: 0x00000001ef5096e4 libsystem_pthread.dylib`_pthread_cond_wait +
1228
frame #2: 0x0000000103e04c54
BAM`QWaitConditionPrivate::wait(QDeadlineTimer) + 208
frame #3: 0x0000000103e04b18 BAM`QWaitCondition::wait(QMutex*,
QDeadlineTimer) + 148
frame #4: 0x0000000103dff7c0 BAM`QThreadPoolThread::run() + 896
frame #5: 0x0000000103dfbfd4 BAM`QThreadPrivate::start(void*) + 360
frame #6: 0x00000001ef50c06c libsystem_pthread.dylib`_pthread_start + 136
thread #17, name = 'Thread (pooled)'
frame #0: 0x00000001db7aa1cc libsystem_kernel.dylib`__psynch_cvwait + 8
frame #1: 0x00000001ef5096e4 libsystem_pthread.dylib`_pthread_cond_wait +
1228
frame #2: 0x0000000103e04c54
BAM`QWaitConditionPrivate::wait(QDeadlineTimer) + 208
frame #3: 0x0000000103e04b18 BAM`QWaitCondition::wait(QMutex*,
QDeadlineTimer) + 148
frame #4: 0x0000000103dff7c0 BAM`QThreadPoolThread::run() + 896 frame
#5: 0x0000000103dfbfd4 BAM`QThreadPrivate::start(void*) + 360
frame #6: 0x00000001ef50c06c libsystem_pthread.dylib`_pthread_start + 136
thread #18, name = 'Thread (pooled)'
frame #0: 0x00000001db7aa1cc libsystem_kernel.dylib`__psynch_cvwait + 8
frame #1: 0x00000001ef5096e4 libsystem_pthread.dylib`_pthread_cond_wait +
1228
frame #2: 0x0000000103e04c54
BAM`QWaitConditionPrivate::wait(QDeadlineTimer) + 208
frame #3: 0x0000000103e04b18 BAM`QWaitCondition::wait(QMutex*,
QDeadlineTimer) + 148
frame #4: 0x0000000103dff7c0 BAM`QThreadPoolThread::run() + 896
frame #5: 0x0000000103dfbfd4 BAM`QThreadPrivate::start(void*) + 360
frame #6: 0x00000001ef50c06c libsystem_pthread.dylib`_pthread_start + 136
thread #19, name = 'Thread (pooled)'
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> On 19 Jul 2024, at 14:04, Alexey Rusakov <kt...@users.sf.net> wrote:
>
> Deadlocks usually occur across several threads. Do you have a stack trace for
> other threads, too?
>
> Alexey
>
> On Fri, 2024-07-19 at 12:12 +0100, Nuno Santos via Interest wrote:
>> Dennis,
>>
>> Thanks for the clarification.
>>
>> Maybe it is deviating a bit from Qt. It’s probably something I’m not doing
>> correctly from the Qt paradigm perspective but this is one of those problems
>> where I feeling lost.
>>
>> I’ve just had one of those rare deadlock and it happened like this:
>>
>> - This is a music making application. I have the audio processing and the
>> GUI.
>> - In the audio render thread, I call the processing of the sequencer which
>> is responsible for handling the music events.
>> - There are visual representations of this elements that contains the notes
>> that are being played
>> - During the processing of the musical steps, there is a signal that is
>> being called. It got stuck there.
>>
>> But invoking a method as a queue connection in another thread shouldn’t be a
>> problem, right?
>>
>> QMetaObject::invokeMethod(this, &DSClip::stepChanged, Qt::QueuedConnection);
>>
>> This invoke will trigger a signal that will request the DSClip visual
>> instance to be updated on the QML side.
>>
>> Here is the place it got stuck in the audio render thread. It got locked
>> when invoking the method.
>>
>> Does this ring any bell?
>>
>> Thanks!
>>
>> Best,
>>
>> Nuno
>>
>>
>>
>>> On 19 Jul 2024, at 12:00, Dennis Luehring <dl.so...@gmx.net
>>> <mailto:dl.so...@gmx.net>> wrote:
>>>
>>> Am 19.07.2024 um 12:52 schrieb Nuno Santos:
>>>> Can data race cause deadlocks?
>>>>
>>>> Or should I explicitly look for deadlock: "lock-order-inversion (potential
>>>> deadlock)”
>>>
>>>
>>> data races can maybe get you into deadlocks someway... but you should
>>> look for lock-order-inversions and fix them (even if very hard to
>>> sometimes understand why they happening)
>>>
>>>
>>> btw: the discussion is drifting away from Qt itself :)
>>
>> _______________________________________________
>> Interest mailing list
>> Interest@qt-project.org <mailto:Interest@qt-project.org>
>> https://lists.qt-project.org/listinfo/interest
_______________________________________________
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