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CoFutureAwaitTests.swift:51 - testConcurrency() - unit test fails #6
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@ctreffs Thanks a lot!!! I've always run tests in a release mode and didn't see that
crash in a debug mode. Thanks to this issue, I've found another bug too. Updated
version is on github.
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Works fine now ✅ |
Closed
ladeiko
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Aug 5, 2022
…detect mods to free blocks SwiftCoroutineDemo(39856,0x11266e600) malloc: nano zone abandoned due to inability to preallocate reserved vm space. DispatchQueue::scheduleTask() <OS_dispatch_queue_main: com.apple.main-thread> SharedCoroutineDispatcher::getFreeQueue(SwiftCoroutine.SharedCoroutineDispatcher) CoroutineContext::init(stackSize=196608, guardPage=true, SwiftCoroutine.CoroutineContext) returnEnv = 0x000060f0000042d0 stack = 0x000000010effb000 SharedCoroutineQueue::start(SwiftCoroutine.SharedCoroutineQueue) CoroutineContext::start(SwiftCoroutine.CoroutineContext) enter CoroutineContext::stackTop(SwiftCoroutine.CoroutineContext) 0x000000010f02b000 CoroutineContext::start(Optional(0x00006060000b8400)) block enter ==39856==WARNING: ASan is ignoring requested __asan_handle_no_return: stack type: default top: 0x7ff7b7045000; bottom 0x00010f028000; size: 0x7ff6a801d000 (140697357373440) False positive error reports may follow For details see google/sanitizers#189 CoroutineContext::start(SwiftCoroutine.CoroutineContext) leave DispatchQueue::scheduleTask() <OS_dispatch_queue_main: com.apple.main-thread> SharedCoroutineDispatcher::getFreeQueue(SwiftCoroutine.SharedCoroutineDispatcher) SharedCoroutineQueue::start(SwiftCoroutine.SharedCoroutineQueue) CoroutineContext::stackTop(SwiftCoroutine.CoroutineContext) 0x000000010f02b000 ================================================================= ==39856==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x00010f029ec1 at pc 0x00010949d77d bp 0x7ff7b7040e90 sp 0x7ff7b7040650 READ of size 4416 at 0x00010f029ec1 thread T0 #0 0x10949d77c in wrap_memcpy+0x16c (libclang_rt.asan_iossim_dynamic.dylib:x86_64+0x1977c) belozierov#1 0x109ef7f83 in SharedCoroutine.saveStack() SharedCoroutine.swift:79 belozierov#2 0x109eff514 in SharedCoroutineQueue.start(dispatcher:scheduler:task:) SharedCoroutineQueue.swift:39 belozierov#3 0x109efc229 in closure belozierov#1 in SharedCoroutineDispatcher.execute(on:task:) SharedCoroutineDispatcher.swift:27 belozierov#4 0x109ee7ed9 in OS_dispatch_queue.scheduleTask(_:) CoroutineScheduler+DispatchQueue.swift:16 belozierov#5 0x109ee88ad in protocol witness for CoroutineScheduler.scheduleTask(_:) in conformance OS_dispatch_queue <compiler-generated> belozierov#6 0x109efbf48 in SharedCoroutineDispatcher.execute(on:task:) SharedCoroutineDispatcher.swift:26 belozierov#7 0x109ee3616 in CoroutineScheduler._startCoroutine(_:) CoroutineScheduler.swift:51 belozierov#8 0x109ee3c78 in CoroutineScheduler.startCoroutine(in:task:) CoroutineScheduler.swift:69 belozierov#9 0x108ebe2ed in AppDelegate.test() AppDelegate.swift:43 belozierov#10 0x108ebdd77 in AppDelegate.application(_:didFinishLaunchingWithOptions:) AppDelegate.swift:18 belozierov#11 0x108ebe4b7 in @objc AppDelegate.application(_:didFinishLaunchingWithOptions:) <compiler-generated> belozierov#12 0x7fff2509a592 in -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:]+0xd5 (UIKitCore:x86_64+0xcd7592) belozierov#13 0x7fff2509c283 in -[UIApplication _callInitializationDelegatesWithActions:forCanvas:payload:fromOriginatingProcess:]+0x101f (UIKitCore:x86_64+0xcd9283) belozierov#14 0x7fff250a1c23 in -[UIApplication _runWithMainScene:transitionContext:completion:]+0x4a5 (UIKitCore:x86_64+0xcdec23) belozierov#15 0x7fff246124a2 in -[_UISceneLifecycleMultiplexer completeApplicationLaunchWithFBSScene:transitionContext:]+0xb2 (UIKitCore:x86_64+0x24f4a2) belozierov#16 0x7fff2509e2ac in -[UIApplication _compellApplicationLaunchToCompleteUnconditionally]+0x3a (UIKitCore:x86_64+0xcdb2ac) belozierov#17 0x7fff2509e64b in -[UIApplication _run]+0x391 (UIKitCore:x86_64+0xcdb64b) belozierov#18 0x7fff250a32b4 in UIApplicationMain+0x64 (UIKitCore:x86_64+0xce02b4) belozierov#19 0x7fff59d55cc1 in UIApplicationMain(_:_:_:_:)+0x61 (libswiftUIKit.dylib:x86_64+0x21cc1) belozierov#20 0x108ebf357 in static UIApplicationDelegate.main() <compiler-generated> belozierov#21 0x108ebf2a0 in static AppDelegate.$main() AppDelegate.swift:11 belozierov#22 0x108ebfc77 in main <compiler-generated> belozierov#23 0x1090f8f20 in start_sim+0x9 (dyld_sim:x86_64+0x1f20) belozierov#24 0x1125f352d (<unknown module>) 0x00010f029ec1 is located 192193 bytes inside of 200704-byte region [0x00010effb000,0x00010f02c000) allocated by thread T0 here: #0 0x1094c7bb3 in wrap_posix_memalign+0xb3 (libclang_rt.asan_iossim_dynamic.dylib:x86_64+0x43bb3) belozierov#1 0x7fff30c9e62c in swift_slowAlloc+0x4c (libswiftCore.dylib:x86_64+0x30762c) belozierov#2 0x109ede243 in CoroutineContext.init(stackSize:guardPage:) CoroutineContext.swift:32 belozierov#3 0x109eddc1f in CoroutineContext.__allocating_init(stackSize:guardPage:) CoroutineContext.swift belozierov#4 0x109efe985 in SharedCoroutineQueue.init(stackSize:) SharedCoroutineQueue.swift:28 belozierov#5 0x109efe5c3 in SharedCoroutineQueue.__allocating_init(stackSize:) SharedCoroutineQueue.swift belozierov#6 0x109efcb3d in SharedCoroutineDispatcher.getFreeQueue() SharedCoroutineDispatcher.swift:38 belozierov#7 0x109efc20d in closure belozierov#1 in SharedCoroutineDispatcher.execute(on:task:) SharedCoroutineDispatcher.swift:27 belozierov#8 0x109ee7ed9 in OS_dispatch_queue.scheduleTask(_:) CoroutineScheduler+DispatchQueue.swift:16 belozierov#9 0x109ee88ad in protocol witness for CoroutineScheduler.scheduleTask(_:) in conformance OS_dispatch_queue <compiler-generated> belozierov#10 0x109efbf48 in SharedCoroutineDispatcher.execute(on:task:) SharedCoroutineDispatcher.swift:26 belozierov#11 0x109ee3616 in CoroutineScheduler._startCoroutine(_:) CoroutineScheduler.swift:51 belozierov#12 0x109ee3c78 in CoroutineScheduler.startCoroutine(in:task:) CoroutineScheduler.swift:69 belozierov#13 0x108ebe2ed in AppDelegate.test() AppDelegate.swift:43 belozierov#14 0x108ebdd77 in AppDelegate.application(_:didFinishLaunchingWithOptions:) AppDelegate.swift:18 belozierov#15 0x108ebe4b7 in @objc AppDelegate.application(_:didFinishLaunchingWithOptions:) <compiler-generated> belozierov#16 0x7fff2509a592 in -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:]+0xd5 (UIKitCore:x86_64+0xcd7592) belozierov#17 0x7fff2509c283 in -[UIApplication _callInitializationDelegatesWithActions:forCanvas:payload:fromOriginatingProcess:]+0x101f (UIKitCore:x86_64+0xcd9283) belozierov#18 0x7fff250a1c23 in -[UIApplication _runWithMainScene:transitionContext:completion:]+0x4a5 (UIKitCore:x86_64+0xcdec23) belozierov#19 0x7fff246124a2 in -[_UISceneLifecycleMultiplexer completeApplicationLaunchWithFBSScene:transitionContext:]+0xb2 (UIKitCore:x86_64+0x24f4a2) belozierov#20 0x7fff2509e2ac in -[UIApplication _compellApplicationLaunchToCompleteUnconditionally]+0x3a (UIKitCore:x86_64+0xcdb2ac) belozierov#21 0x7fff2509e64b in -[UIApplication _run]+0x391 (UIKitCore:x86_64+0xcdb64b) belozierov#22 0x7fff250a32b4 in UIApplicationMain+0x64 (UIKitCore:x86_64+0xce02b4) belozierov#23 0x7fff59d55cc1 in UIApplicationMain(_:_:_:_:)+0x61 (libswiftUIKit.dylib:x86_64+0x21cc1) belozierov#24 0x108ebf357 in static UIApplicationDelegate.main() <compiler-generated> belozierov#25 0x108ebf2a0 in static AppDelegate.$main() AppDelegate.swift:11 belozierov#26 0x108ebfc77 in main <compiler-generated> belozierov#27 0x1090f8f20 in start_sim+0x9 (dyld_sim:x86_64+0x1f20) belozierov#28 0x1125f352d (<unknown module>) SUMMARY: AddressSanitizer: stack-buffer-overflow (libclang_rt.asan_iossim_dynamic.dylib:x86_64+0x1977c) in wrap_memcpy+0x16c Shadow bytes around the buggy address: 0x0001344ad380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0001344ad390: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0001344ad3a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0001344ad3b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0001344ad3c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 =>0x0001344ad3d0: 00 00 00 00 f1 f1 f1 f1[01]f3 f3 f3 00 00 00 00 0x0001344ad3e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0001344ad3f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0001344ad400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0001344ad410: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x0001344ad420: 00 00 00 00 00 00 00 00 00 00 00 00 ca ca ca ca Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Container overflow: fc Array cookie: ac Intra object redzone: bb ASan internal: fe Left alloca redzone: ca Right alloca redzone: cb ==39856==ABORTING AddressSanitizer report breakpoint hit. Use 'thread info -s' to get extended information about the report. (lldb)
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When running the unit tests of the current master branch I get the following test crash
commit 014ebe763cb08bb9e04dcf112787e585f7dc00f5 (HEAD -> master, origin/master, origin/HEAD)In file and line:
CoFutureAwaitTests.swift:51If it's of interest to you I will debug further using your instructions.
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