Kingfisher: Crash reported by Fabric

Created on 25 Jan 2018 · 14Comments · Source: onevcat/Kingfisher

Check List

[x] I have read the wiki page and cheat sheet, but there is no information I need.
[x] I have searched in existing issues, but did not find a same one.
[x] I want to report a problem instead of asking a question. It'd better to use kingfisher tag in Stack Overflow to ask a question.

Issue Description

Using Kingfisher 4.6.1, we received a crash inside KingFisher that was reported to us by Fabric.

What

Crashed: com.apple.main-thread
EXC_BREAKPOINT 0x00000001850be1e8
specialized ImageDownloaderSessionHandler.callCompletionHandlerFailure(error:url:)
 Raw Text

0  libdispatch.dylib              0x1850be1e8 _os_object_retain + 72
1  Kingfisher                     0x100b41848 specialized ImageDownloaderSessionHandler.callCompletionHandlerFailure(error:url:) (ImageDownloader.swift:525)
2  Kingfisher                     0x100b42e58 specialized ImageDownloaderSessionHandler.urlSession(_:task:didCompleteWithError:) (ImageDownloader.swift:475)
3  Kingfisher                     0x100b3b9a0 @objc ImageDownloaderSessionHandler.urlSession(_:task:didCompleteWithError:) (ImageDownloader.swift)
4  CFNetwork                      0x1869e69f8 __51-[NSURLSession delegate_task:didCompleteWithError:]_block_invoke.185 + 72
5  Foundation                     0x186cf6754 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 16
6  Foundation                     0x186c3b2c8 -[NSBlockOperation main] + 96
7  Foundation                     0x186c2b8c4 -[__NSOperationInternal _start:] + 620
8  Foundation                     0x186cf8b00 __NSOQSchedule_f + 228
9  libdispatch.dylib              0x1850bd1c0 _dispatch_client_callout + 16
10 libdispatch.dylib              0x1850c1d6c _dispatch_main_queue_callback_4CF + 1000
11 CoreFoundation                 0x1861dff2c __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12
12 CoreFoundation                 0x1861ddb18 __CFRunLoopRun + 1660
13 CoreFoundation                 0x18610c048 CFRunLoopRunSpecific + 444
14 GraphicsServices               0x187b92198 GSEventRunModal + 180
15 UIKit                          0x18c0f82fc -[UIApplication _run] + 684
16 UIKit                          0x18c0f3034 UIApplicationMain + 208

Other threads that might be related to the crash:

com.onevcat.Kingfisher.ImageDownloader.Cancel.default
0  libsystem_kernel.dylib         0x1851e41a8 semaphore_wait_trap + 8
1  libdispatch.dylib              0x1850cf7ec _dispatch_semaphore_wait_slow + 216
2  libswiftDispatch.dylib         0x10117bbec (Missing)
3  Kingfisher                     0x100b40e00 specialized closure #1 in ImageDownloader.setup(progressBlock:with:for:options:started:) (ImageDownloader.swift:396)
4  Kingfisher                     0x100b3b60c closure #1 in ImageDownloader.setup(progressBlock:with:for:options:started:) (ImageDownloader.swift)
5  Kingfisher                     0x100b45f28 partial apply for closure #1 in ImageDownloader.setup(progressBlock:with:for:options:started:) (ImageDownloader.swift)
6  Kingfisher                     0x100b2d384 thunk for @callee_owned () -> () (ImageCache.swift)
7  libdispatch.dylib              0x1850bd200 _dispatch_call_block_and_release + 24
8  libdispatch.dylib              0x1850bd1c0 _dispatch_client_callout + 16
9  libdispatch.dylib              0x1850cb444 _dispatch_queue_serial_drain + 928
10 libdispatch.dylib              0x1850c09a8 _dispatch_queue_invoke + 652
11 libdispatch.dylib              0x1850cb940 _dispatch_queue_override_invoke + 360
12 libdispatch.dylib              0x1850cd38c _dispatch_root_queue_drain + 572
13 libdispatch.dylib              0x1850cd0ec _dispatch_worker_thread3 + 124
14 libsystem_pthread.dylib        0x1852c62b8 _pthread_wqthread + 1288
15 libsystem_pthread.dylib        0x1852c5da4 start_wqthread + 4

Reproduce

Unknown

Other Comment

The issue had previously been seen on Kingfisher 4.2.0 (Fabric), but we had hoped that it was already fixed in a later version. It seems it was not, and therefore I am reporting it now.

Source

bes

😕8 👍7 👎3

Most helpful comment

Yes,

I am rewriting this part and try to remove the semaphore related code. I hope I could release the new version (and quite a few other refactoring) soon.

onevcat on 10 Oct 2018

👍8 🎉4

All 14 comments

@bes Thanks for reporting this. It seems to be related on some operation of the semaphore. The libdispatch trapped it when waiting a semaphore. However, I am not sure whether it is an issue we could fix in Kingfisher or not. I would leave it open for a while and check again with related code again.

onevcat on 26 Jan 2018

We have the exact same issue. Also Fabric reported us some crashes within Kingfisher. These two lines are the same:

1  Kingfisher                     0x100b41848 specialized ImageDownloaderSessionHandler.callCompletionHandlerFailure(error:url:) (ImageDownloader.swift:525)
2  Kingfisher                     0x100b42e58 specialized ImageDownloaderSessionHandler.urlSession(_:task:didCompleteWithError:) (ImageDownloader.swift:475)

So this does not seem to be an isolated/single case in one dedicated project.

orschaef on 12 Feb 2018

I've also have a strange crash. Only on iOS 10.1.1.
com.easyshop.iphoneapp_issue_2_crash_bcf08c8c781a47f4aed2db521aa833c6_DNE_0_v2.txt
com.easyshop.iphoneapp_issue_3_crash_bf0944f957154f6987611719ddccce2e_DNE_0_v2.txt

torip3ng on 19 Mar 2018

👍1

I've also have a crash only on iOS 11 from ImageDownloader and CacheSerializer.

ImageDownloader.swift line 457
specialized ImageDownloaderSessionHandler.urlSession(URLSession, dataTask : URLSessionDataTask, didReceive : Data) -> ()

Fatal Exception: NSMallocException
0  CoreFoundation                 0x186207164 __exceptionPreprocess
1  libobjc.A.dylib                0x185450528 objc_exception_throw
2  Foundation                     0x186be1e58 _NSErrnoMessage
3  CoreFoundation                 0x186165790 __CFSafelyReallocate
4  Foundation                     0x186b193d4 _NSMutableDataGrowBytes
5  Foundation                     0x186b19200 -[NSConcreteMutableData appendBytes:length:]
6  Foundation                     0x186d4b7d4 __49-[_NSDispatchData enumerateByteRangesUsingBlock:]_block_invoke
7  libdispatch.dylib              0x185bdf364 _dispatch_data_apply
8  Foundation                     0x186d4b79c -[_NSDispatchData enumerateByteRangesUsingBlock:]
9  Foundation                     0x186b19068 -[NSConcreteMutableData appendData:]
10 Kingfisher                     0x10382b7d8 specialized ImageDownloaderSessionHandler.urlSession(URLSession, dataTask : URLSessionDataTask, didReceive : Data) -> () (ImageDownloader.swift:457)
11 Kingfisher                     0x1038248f8 @objc ImageDownloaderSessionHandler.urlSession(URLSession, dataTask : URLSessionDataTask, didReceive : Data) -> () (ImageDownloader.swift)
12 Pomelo                         0x102e8f678 -[NRURLSessionTaskDelegateBase URLSession:dataTask:didReceiveData:] (NRMAURLSessionTaskDelegateBase.m:63)
13 CFNetwork                      0x186943970 __67-[NSURLSession delegate_dataTask:didReceiveData:completionHandler:]_block_invoke.264
14 Foundation                     0x186bddba0 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__
15 Foundation                     0x186b1d894 -[NSBlockOperation main]
16 Foundation                     0x186b0d4c4 -[__NSOperationInternal _start:]
17 libdispatch.dylib              0x185b86a14 _dispatch_client_callout
18 libdispatch.dylib              0x185bc29c4 _dispatch_block_invoke_direct$VARIANT$armv81
19 libdispatch.dylib              0x185b86a14 _dispatch_client_callout
20 libdispatch.dylib              0x185bc29c4 _dispatch_block_invoke_direct$VARIANT$armv81
21 libdispatch.dylib              0x185bc2878 dispatch_block_perform$VARIANT$armv81
22 Foundation                     0x186bdf878 __NSOQSchedule_f
23 libdispatch.dylib              0x185b86a14 _dispatch_client_callout
24 libdispatch.dylib              0x185bc7c80 _dispatch_main_queue_callback_4CF$VARIANT$armv81
25 CoreFoundation                 0x1861af344 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__
26 CoreFoundation                 0x1861acf20 __CFRunLoopRun
27 CoreFoundation                 0x1860ccc58 CFRunLoopRunSpecific
28 GraphicsServices               0x187f78f84 GSEventRunModal
29 UIKit                          0x18f8255c4 UIApplicationMain
30 Pomelo                         0x1028f6b5c main (PMLCategoryDetailsTableViewCell.swift:20)
31 libdyld.dylib                  0x185bec56c start

ImageDownloader.swift line 551
ImageDownloaderSessionHandler.(processImage(for : URLSessionTask, url : URL) -> ()).(closure #1)

Fatal Exception: NSInvalidArgumentException
0  CoreFoundation                 0x1837ab164 __exceptionPreprocess
1  libobjc.A.dylib                0x1829f4528 objc_exception_throw
2  CoreFoundation                 0x1837ab0ac -[NSException initWithCoder:]
3  Foundation                     0x18410c4d0 NSAllocateMemoryPages
4  Foundation                     0x1840e3b8c _NSDataCreateVMDispatchData
5  Foundation                     0x1840af590 -[_NSPlaceholderData initWithBytes:length:copy:deallocator:]
6  libswiftFoundation.dylib       0x1021185cc (Missing)
7  libswiftFoundation.dylib       0x10205c7ac (Missing)
8  Kingfisher                     0x101880db0 ImageDownloaderSessionHandler.(processImage(for : URLSessionTask, url : URL) -> ()).(closure #1) (ImageDownloader.swift:551)
9  Kingfisher                     0x101871aec _T0Ieg_IeyB_TR (ImageCache.swift)
10 libdispatch.dylib              0x18312aa54 _dispatch_call_block_and_release
11 libdispatch.dylib              0x18312aa14 _dispatch_client_callout
12 libdispatch.dylib              0x183132f08 _dispatch_continuation_pop$VARIANT$mp
13 libdispatch.dylib              0x18313180c _dispatch_async_redirect_invoke$VARIANT$mp
14 libdispatch.dylib              0x183137cf4 _dispatch_root_queue_drain
15 libdispatch.dylib              0x183137a38 _dispatch_worker_thread3
16 libsystem_pthread.dylib        0x1833d306c _pthread_wqthread
17 libsystem_pthread.dylib        0x1833d2b6c start_wqthread

CacheSerializer.swift line 197
DefaultCacheSerializerdataData?UIImagewith first-element-marker UIImage

Fatal Exception: NSMallocException
0  CoreFoundation                 0x18132ed8c __exceptionPreprocess
1  libobjc.A.dylib                0x1804e85ec objc_exception_throw
2  Foundation                     0x181d5ad7c _NSErrnoMessage
3  CoreFoundation                 0x18128dfd8 __CFSafelyReallocate
4  Foundation                     0x181cc1b18 _NSMutableDataGrowBytes
5  Foundation                     0x181c8574c -[NSConcreteMutableData appendBytes:length:]
6  ImageIO                        0x1833fcd70 IIOImageWriteSession::putBytes(void const*, unsigned long)
7  ImageIO                        0x1833d0e4c iioWriteCallback(void*, int, void*)
8  AppleJPEG                      0x183350298 aj_ostream_write
9  AppleJPEG                      0x183372188 aj_block_encode_ac
10 AppleJPEG                      0x1833421d0 aj_encode_buffers_baseline
11 AppleJPEG                      0x183342618 aj_encode_row
12 AppleJPEG                      0x1833738f0 applejpeg_encode_image_row
13 ImageIO                        0x183530b8c AppleJPEGWritePlugin::writeOne(IIOImagePixelDataProvider*, IIODictionary*, IIODictionary*, unsigned int)
14 ImageIO                        0x183531b14 IIO_Writer_AppleJPEG::write(void*, void*)
15 ImageIO                        0x1834b9f48 IIOImageDestination::finalize()
16 UIKit                          0x18b318500 _UIImageJPEGRepresentation
17 Kingfisher                     0x1017c4990 DefaultCacheSerializerdataData?UIImagewith first-element-marker UIImage (CacheSerializer.swift:197)
18 Kingfisher                     0x1017c46fc DefaultCacheSerializerKingfisherCacheSerializer (CacheSerializer.swift)
19 Kingfisher                     0x1017ce524 ImageCache.(store(UIImage, original : Data?, forKey : String, processorIdentifier : String, cacheSerializer : CacheSerializer, toDisk : Bool, completionHandler : () -> ()?) -> ()).(closure #1) (ImageCache.swift:214)
20 Kingfisher                     0x1017da904 partial apply for ImageCache.(store(UIImage, original : Data?, forKey : String, processorIdentifier : String, cacheSerializer : CacheSerializer, toDisk : Bool, completionHandler : () -> ()?) -> ()).(closure #1) (ImageCache.swift)
21 Kingfisher                     0x1017cdaec _T0Ieg_IeyB_TR (ImageCache.swift)
22 libdispatch.dylib              0x180c20b24 _dispatch_call_block_and_release
23 libdispatch.dylib              0x180c20ae4 _dispatch_client_callout
24 libdispatch.dylib              0x180c5f1b4 _dispatch_queue_serial_drain$VARIANT$armv81
25 libdispatch.dylib              0x180c5fad8 _dispatch_queue_invoke$VARIANT$armv81
26 libdispatch.dylib              0x180c6047c _dispatch_root_queue_drain_deferred_wlh$VARIANT$armv81
27 libdispatch.dylib              0x180c6844c _dispatch_workloop_worker_thread$VARIANT$armv81
28 libsystem_pthread.dylib        0x180f53e70 _pthread_wqthread
29 libsystem_pthread.dylib        0x180f53b08 start_wqthread

bank18651 on 11 Apr 2018

I just wanted to say we're also getting crashes like the ones reported here, at:

ImageDownloader.swift line 486
specialized ImageDownloaderSessionHandler.urlSession(_:dataTask:didReceive:)

Fatal Exception: NSMallocException
Failed to grow buffer

Fatal Exception: NSMallocException
0  CoreFoundation                 0x186023164 __exceptionPreprocess
1  libobjc.A.dylib                0x18526c528 objc_exception_throw
2  Foundation                     0x1869fde58 _NSErrnoMessage
3  CoreFoundation                 0x185f81790 __CFSafelyReallocate
4  Foundation                     0x1869353d4 _NSMutableDataGrowBytes
5  Foundation                     0x186935200 -[NSConcreteMutableData appendBytes:length:]
6  Foundation                     0x186b677d4 __49-[_NSDispatchData enumerateByteRangesUsingBlock:]_block_invoke
7  Foundation                     0x186b6779c -[_NSDispatchData enumerateByteRangesUsingBlock:]
8  Foundation                     0x186935068 -[NSConcreteMutableData appendData:]
9  Kingfisher                     0x106da8b68 specialized ImageDownloaderSessionHandler.urlSession(_:dataTask:didReceive:) (ImageDownloader.swift:486)
10 Kingfisher                     0x106d9fb24 @objc ImageDownloaderSessionHandler.urlSession(_:dataTask:didReceive:) (ImageDownloader.swift)
11 CFNetwork                      0x18675f970 __67-[NSURLSession delegate_dataTask:didReceiveData:completionHandler:]_block_invoke.264
12 Foundation                     0x1869f9ba0 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__
13 Foundation                     0x186939894 -[NSBlockOperation main]
14 Foundation                     0x1869294c4 -[__NSOperationInternal _start:]
15 libdispatch.dylib              0x1859a2a14 _dispatch_client_callout
16 libdispatch.dylib              0x1859de9c4 _dispatch_block_invoke_direct$VARIANT$armv81
17 libdispatch.dylib              0x1859a2a14 _dispatch_client_callout
18 libdispatch.dylib              0x1859de9c4 _dispatch_block_invoke_direct$VARIANT$armv81
19 libdispatch.dylib              0x1859de878 dispatch_block_perform$VARIANT$armv81
20 Foundation                     0x1869fb878 __NSOQSchedule_f
21 libdispatch.dylib              0x1859a2a14 _dispatch_client_callout
22 libdispatch.dylib              0x1859e3c80 _dispatch_main_queue_callback_4CF$VARIANT$armv81
23 CoreFoundation                 0x185fcb344 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__
24 CoreFoundation                 0x185fc8f20 __CFRunLoopRun
25 CoreFoundation                 0x185ee8c58 CFRunLoopRunSpecific
26 GraphicsServices               0x187d94f84 GSEventRunModal
27 UIKit                          0x18f6415c4 UIApplicationMain
28 Holonis                        0x104071130 main (AppDelegate.swift:25)
29 libdyld.dylib                  0x185a0856c start

Which could possible be an Out of Memory problem. And we are having about 4% of our user base have OOM sessions.

gmogames on 18 Apr 2018

We got this issue reported by Fabric couple of times. Any solution to avoid this ? or Need to be fixed in Kingfisher ?

iranjith4 on 6 Jun 2018

Same for me

abiaad on 22 Jun 2018

Same for me.

1  Kingfisher        0x101ff87f8 specialized ImageDownloaderSessionHandler.callCompletionHandlerFailure(error : Error, url : URL) -> () (ImageDownloader.swift:578)
2  Kingfisher        0x101ff9b4c specialized ImageDownloaderSessionHandler.urlSession(URLSession, task : URLSessionTask, didCompleteWithError : Error?) -> () (ImageDownloader.swift:528)
3  Kingfisher        0x101ff2268 @objc ImageDownloaderSessionHandler.urlSession(URLSession, task : URLSessionTask, didCompleteWithError : Error?) -> () (ImageDownloader.swift)

kapoorsahil on 28 Jun 2018

We have this same issue. Also Reported on Fabric

Crashed: com.apple.main-thread
0  libdispatch.dylib              0x182629788 _os_object_retain$VARIANT$armv81 + 64
1  Kingfisher                     0x1055b4194 specialized ImageDownloaderSessionHandler.callCompletionHandlerFailure(error:url:) (ImageDownloader.swift:525)
2  Kingfisher                     0x1055b5344 specialized ImageDownloaderSessionHandler.urlSession(_:task:didCompleteWithError:) (ImageDownloader.swift:475)
3  Kingfisher                     0x1055adf68 @objc ImageDownloaderSessionHandler.urlSession(_:task:didCompleteWithError:) (ImageDownloader.swift)
4  CFNetwork                      0x18345b990 __51-[NSURLSession delegate_task:didCompleteWithError:]_block_invoke.207 + 76
5  Foundation                     0x18372ee88 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 16
6  Foundation                     0x1836708d0 -[NSBlockOperation main] + 72
7  Foundation                     0x18366fcac -[__NSOperationInternal _start:] + 848
8  libdispatch.dylib              0x1825f8a60 _dispatch_client_callout + 16
9  libdispatch.dylib              0x182634b2c _dispatch_block_invoke_direct$VARIANT$armv81 + 216
10 libdispatch.dylib              0x1825f8a60 _dispatch_client_callout + 16
11 libdispatch.dylib              0x182634b2c _dispatch_block_invoke_direct$VARIANT$armv81 + 216
12 libdispatch.dylib              0x182634a20 dispatch_block_perform$VARIANT$armv81 + 104
13 Foundation                     0x183730750 __NSOQSchedule_f + 376
14 libdispatch.dylib              0x1825f8a60 _dispatch_client_callout + 16
15 libdispatch.dylib              0x182639d80 _dispatch_main_queue_callback_4CF$VARIANT$armv81 + 964
16 CoreFoundation                 0x182caf070 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12
17 CoreFoundation                 0x182cacbc8 __CFRunLoopRun + 2272
18 CoreFoundation                 0x182bccda8 CFRunLoopRunSpecific + 552
19 GraphicsServices               0x184bb1020 GSEventRunModal + 100
20 UIKit                          0x18cbe9758 UIApplicationMain + 236
21 AppName                       0x10417ac38 main (AppDelegate.swift:14)
22 libdyld.dylib                  0x18265dfc0 start + 4

Froelund on 5 Jul 2018

same

Fatal Exception: NSMallocException
0 CoreFoundation 0x184026d8c __exceptionPreprocess
1 libobjc.A.dylib 0x1831e05ec objc_exception_throw
2 Foundation 0x184a52d7c _NSErrnoMessage
3 CoreFoundation 0x183f85fd8 __CFSafelyReallocate
4 Foundation 0x1849b9b18 _NSMutableDataGrowBytes
5 Foundation 0x18497d74c -[NSConcreteMutableData appendBytes:length:]
6 Foundation 0x184bac5cc __49-[_NSDispatchData enumerateByteRangesUsingBlock:]_block_invoke
7 libdispatch.dylib 0x18397130c _dispatch_data_apply
8 Foundation 0x184bac594 -[_NSDispatchData enumerateByteRangesUsingBlock:]
9 Foundation 0x18499cc60 -[NSConcreteMutableData appendData:]
10 Kingfisher 0x103c014dc specialized ImageDownloaderSessionHandler.urlSession(URLSession, dataTask : URLSessionDataTask, didReceive : Data) -> () (ImageDownloader.swift:506)
11 Kingfisher 0x103bfa1bc @objc ImageDownloaderSessionHandler.urlSession(URLSession, dataTask : URLSessionDataTask, didReceive : Data) -> () (ImageDownloader.swift)
12 CFNetwork 0x18477c92c __67-[NSURLSession delegate_dataTask:didReceiveData:completionHandler:]_block_invoke.264
13 Foundation 0x184a4ee88 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__
14 Foundation 0x1849908d0 -[NSBlockOperation main]
15 Foundation 0x18498fcac -[__NSOperationInternal _start:]
16 libdispatch.dylib 0x183918a60 _dispatch_client_callout
17 libdispatch.dylib 0x183954b2c _dispatch_block_invoke_direct$VARIANT$armv81
18 libdispatch.dylib 0x183918a60 _dispatch_client_callout
19 libdispatch.dylib 0x183954b2c _dispatch_block_invoke_direct$VARIANT$armv81
20 libdispatch.dylib 0x183954a20 dispatch_block_perform$VARIANT$armv81
21 Foundation 0x184a50750 __NSOQSchedule_f
22 libdispatch.dylib 0x183918a60 _dispatch_client_callout
23 libdispatch.dylib 0x183959d80 _dispatch_main_queue_callback_4CF$VARIANT$armv81
24 CoreFoundation 0x183fcf070 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__
25 CoreFoundation 0x183fccbc8 __CFRunLoopRun
26 CoreFoundation 0x183eecda8 CFRunLoopRunSpecific
27 GraphicsServices 0x185ed1020 GSEventRunModal
28 UIKit 0x18df09758 UIApplicationMain
29 syarahswift 0x1025d6854 main (AppDelegate.swift:47)
30 libdyld.dylib 0x18397dfc0 start

mouness2020 on 26 Jul 2018

Got the same issue a lot from our users in Fabric, although personally I was never able to reproduce it.

My understanding is this EXC_BREAKPOINT happens when trying to access a nil object? But by checking the code, I don't see any where could lead to this error.

Probably like @onevcat has said, this could be an issue with semaphore.

@onevcat do you have any more thoughts about this issue? Do you think there could be a workaround for this? Like refactoring the code to not using semaphore? Since there is only one place using semaphore, I can try to get a PR together if that is OK.

Thanks.

#0Crashed: com.apple.main-thread EXC_BREAKPOINT 0x000000018339a63c

Crashed: com.apple.main-thread
0  libdispatch.dylib              0x18339a63c _os_object_retain$VARIANT$mp + 72
1  Kingfisher                     0x1020efe34 specialized ImageDownloaderSessionHandler.callCompletionHandlerFailure(error : Error, url : URL) -> () (ImageDownloader.swift:578)
2  Kingfisher                     0x1020f1188 specialized ImageDownloaderSessionHandler.urlSession(URLSession, task : URLSessionTask, didCompleteWithError : Error?) -> () (ImageDownloader.swift:528)
3  Kingfisher                     0x1020e98a4 @objc ImageDownloaderSessionHandler.urlSession(URLSession, task : URLSessionTask, didCompleteWithError : Error?) -> () (ImageDownloader.swift)
4  CFNetwork                      0x1841fb760 __51-[NSURLSession delegate_task:didCompleteWithError:]_block_invoke.207 + 76
5  Foundation                     0x1844cee88 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 16
6  Foundation                     0x1844108d0 -[NSBlockOperation main] + 72
7  Foundation                     0x18440fcac -[__NSOperationInternal _start:] + 848
8  libdispatch.dylib              0x183398ae4 _dispatch_client_callout + 16
9  libdispatch.dylib              0x1833a01f4 _dispatch_block_invoke_direct$VARIANT$mp + 224
10 libdispatch.dylib              0x183398ae4 _dispatch_client_callout + 16
11 libdispatch.dylib              0x1833a01f4 _dispatch_block_invoke_direct$VARIANT$mp + 224
12 libdispatch.dylib              0x1833a00e0 dispatch_block_perform$VARIANT$mp + 104
13 Foundation                     0x1844d0750 __NSOQSchedule_f + 376
14 libdispatch.dylib              0x183398ae4 _dispatch_client_callout + 16
15 libdispatch.dylib              0x1833a56e0 _dispatch_main_queue_callback_4CF$VARIANT$mp + 1012
16 CoreFoundation                 0x183a4f070 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12
17 CoreFoundation                 0x183a4cbc8 __CFRunLoopRun + 2272
18 CoreFoundation                 0x18396cda8 CFRunLoopRunSpecific + 552
19 GraphicsServices               0x18594f020 GSEventRunModal + 100
20 UIKit                          0x18d94d78c UIApplicationMain + 236
21 Pla                            0x100c32918 main (AppDelegate.swift:23)
22 libdyld.dylib                  0x1833fdfc0 start + 4

zwang on 5 Sep 2018

Yes,

I am rewriting this part and try to remove the semaphore related code. I hope I could release the new version (and quite a few other refactoring) soon.

onevcat on 10 Oct 2018

👍8 🎉4

Having the same issue.

Fatal Exception: NSMallocException
0  CoreFoundation                 0x1e2a2fef8 __exceptionPreprocess
1  libobjc.A.dylib                0x1e1bfda40 objc_exception_throw
2  Foundation                     0x1e34c178c _NSInitializePlatform
3  CoreFoundation                 0x1e29621e8 __CFReallocationFailed
4  CoreFoundation                 0x1e2962188 __CFSafelyReallocate
5  Foundation                     0x1e34769f0 _NSMutableDataGrowBytes
6  Foundation                     0x1e33bec7c -[NSConcreteMutableData appendBytes:length:]
7  Foundation                     0x1e360a80c __49-[_NSDispatchData enumerateByteRangesUsingBlock:]_block_invoke
8  Foundation                     0x1e340ec28 -[_NSDispatchData enumerateByteRangesUsingBlock:]
9  Foundation                     0x1e3415340 -[NSConcreteMutableData appendData:]
10 Kingfisher                     0x1033fc464 $S10Kingfisher29ImageDownloaderSessionHandlerC03urlD0_8dataTask10didReceiveySo12NSURLSessionC_So0k4DataH0C10Foundation0L0VtFTf4dnnn_n (ImageDownloader.swift:522)
11 Kingfisher                     0x1033f55f4 $S10Kingfisher29ImageDownloaderSessionHandlerC03urlD0_8dataTask10didReceiveySo12NSURLSessionC_So0k4DataH0C10Foundation0L0VtFTo (<compiler-generated>)
12 CFNetwork                      0x1e31c7928 __67-[NSURLSession delegate_dataTask:didReceiveData:completionHandler:]_block_invoke.303
13 Foundation                     0x1e34bbb6c __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__
14 Foundation                     0x1e33c3cc8 -[NSBlockOperation main]
15 Foundation                     0x1e33c319c -[__NSOperationInternal _start:]
16 Foundation                     0x1e34bda40 __NSOQSchedule_f
17 libdispatch.dylib              0x1e24151e0 _dispatch_block_async_invoke2
18 libdispatch.dylib              0x1e2468484 _dispatch_client_callout
19 libdispatch.dylib              0x1e24149ec _dispatch_main_queue_callback_4CF$VARIANT$mp
20 CoreFoundation                 0x1e29be1bc __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__
21 CoreFoundation                 0x1e29b9084 __CFRunLoopRun
22 CoreFoundation                 0x1e29b85b8 CFRunLoopRunSpecific
23 GraphicsServices               0x1e4c2c584 GSEventRunModal
24 UIKitCore                      0x20f5b0bc8 UIApplicationMain
25 XXXXXX                         0x102999ff4 main (UIFont+Extension.swift:14)
26 libdyld.dylib                  0x1e2478b94 start

aksswami on 8 Dec 2018

This should be also related to #1001

Basically, these related issues should be already fixed in Kingfisher 5. I rewrote most of the code and introduced a more conservative way to handle memory cache. There is already a What's new in Kingfisher 5 article to describe the noticeable changes, as well as a migration guide.

The development for version 5 should be done now, and the beta version was already used in several of our products, with great response. So I recommend adapt to it soon!

I will tag and release it in a few hours.

onevcat on 8 Dec 2018

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