Question

我们的iPad应用程序的某些用户报告了应用程序启动时的崩溃。虽然我有相同的设备（和相同的操作系统版本4.2.1）我无法复制我的设备上的崩溃。我设法从ITC获得此崩溃日志，但不确定这是否与发布问题上的崩溃有关。

请帮我分析一下这个崩溃日志。提前谢谢。

Incident Identifier: 0D92B20E-8859-4DB4-9DE0-70222FACBAEB
Hardware Model: iPad1,1
Process: MyiPadApp [479]
Path: /var/mobile/Applications/3BA6269C-7616-41ED-A1BF-1D23CA81CFA1/MyiPadApp.app/MyiPadApp
Identifier: MyiPadApp
Version: ??? (???)
Code Type: ARM (Native)
Parent Process: launchd [1]

Date/Time: 2011-01-13 18:40:44.967 +0100
OS Version: iPhone OS 4.2.1 (8C148)
Report Version: 104

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x782e6d6f
Crashed Thread: 0

Thread 0 Crashed:
0 libobjc.A.dylib 0x34a80466 objc_msgSend + 18
1 UIKit 0x3424847e -[UIViewController unloadViewForced:]
2 UIKit 0x342483ca -[UIViewController unloadViewIfReloadable]
3 UIKit 0x342e1dde -[UIViewController purgeMemoryForReason:]
4 UIKit 0x342e1dfe -[UIViewController didReceiveMemoryWarning]
5 MyiPadApp 0x00002886 -[MajorIndicesController didReceiveMemoryWarning] + 22
6 UIKit 0x342e1e14 -[UIViewController _didReceiveMemoryWarning:]
7 Foundation 0x3117561c _nsnote_callback
8 CoreFoundation 0x3580111c __CFXNotificationPost_old
9 CoreFoundation 0x35800dbc _CFXNotificationPostNotification
10 Foundation 0x31164d1c -[NSNotificationCenter postNotificationName:object:userInfo:]
11 Foundation 0x3116e23a -[NSNotificationCenter postNotificationName:object:]
12 UIKit 0x342aada2 -[UIApplication _performMemoryWarning]
13 UIKit 0x342ab9c4 -[UIApplication _receivedMemoryNotification]
14 UIKit 0x342a8770 _memoryStatusChanged
15 CoreFoundation 0x358310c6 __CFNotificationCenterDarwinCallBack
16 CoreFoundation 0x35817be0 __CFMachPortPerform
17 CoreFoundation 0x3580f6f8 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__
18 CoreFoundation 0x3580f6bc __CFRunLoopDoSource1
19 CoreFoundation 0x35801f76 __CFRunLoopRun
20 CoreFoundation 0x35801c80 CFRunLoopRunSpecific
21 CoreFoundation 0x35801b88 CFRunLoopRunInMode
22 GraphicsServices 0x320c84a4 GSEventRunModal
23 GraphicsServices 0x320c8550 GSEventRun
24 UIKit 0x341dc322 -[UIApplication _run]
25 UIKit 0x341d9e8c UIApplicationMain
26 MyiPadApp 0x0000218a main + 42
27 MyiPadApp 0x00002154 start + 32

Thread 1:
0 libSystem.B.dylib 0x30d30974 kevent + 24
1 libSystem.B.dylib 0x30dda704 _dispatch_mgr_invoke
2 libSystem.B.dylib 0x30dda174 _dispatch_queue_invoke
3 libSystem.B.dylib 0x30dd9b98 _dispatch_worker_thread2
4 libSystem.B.dylib 0x30d7e24a _pthread_wqthread
5 libSystem.B.dylib 0x30d76970 start_wqthread + 0

Thread 2:
0 libSystem.B.dylib 0x30d04268 mach_msg_trap + 20
1 libSystem.B.dylib 0x30d06354 mach_msg
2 CoreFoundation 0x35802648 __CFRunLoopServiceMachPort
3 CoreFoundation 0x35801ed2 __CFRunLoopRun
4 CoreFoundation 0x35801c80 CFRunLoopRunSpecific
5 CoreFoundation 0x35801b88 CFRunLoopRunInMode
6 WebCore 0x34bf6124 RunWebThread
7 libSystem.B.dylib 0x30d7d886 _pthread_start
8 libSystem.B.dylib 0x30d72a88 thread_start + 0

Thread 3:
0 libSystem.B.dylib 0x30d04268 mach_msg_trap + 20
1 libSystem.B.dylib 0x30d06354 mach_msg
2 CoreFoundation 0x35802648 __CFRunLoopServiceMachPort
3 CoreFoundation 0x35801ed2 __CFRunLoopRun
4 CoreFoundation 0x35801c80 CFRunLoopRunSpecific
5 CoreFoundation 0x35811efe CFRunLoopRun
6 MyiPadApp 0x00017c84 +[ASIHTTPRequest runRequests] + 120
7 Foundation 0x3116c192 -[NSThread main]
8 Foundation 0x31165242 __NSThread__main__
9 libSystem.B.dylib 0x30d7d886 _pthread_start
10 libSystem.B.dylib 0x30d72a88 thread_start + 0

Thread 4:
0 libSystem.B.dylib 0x30d04268 mach_msg_trap + 20
1 libSystem.B.dylib 0x30d06354 mach_msg
2 CoreFoundation 0x35802648 __CFRunLoopServiceMachPort
3 CoreFoundation 0x35801ed2 __CFRunLoopRun
4 CoreFoundation 0x35801c80 CFRunLoopRunSpecific
5 CoreFoundation 0x35801b88 CFRunLoopRunInMode
6 Foundation 0x3118e5f6 +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:]
7 Foundation 0x3116c192 -[NSThread main]
8 Foundation 0x31165242 __NSThread__main__
9 libSystem.B.dylib 0x30d7d886 _pthread_start
10 libSystem.B.dylib 0x30d72a88 thread_start + 0

Thread 5:
0 libSystem.B.dylib 0x30d2868c select$DARWIN_EXTSN + 20
1 CoreFoundation 0x35839662 __CFSocketManager
2 libSystem.B.dylib 0x30d7d886 _pthread_start
3 libSystem.B.dylib 0x30d72a88 thread_start + 0

Thread 6:
0 libSystem.B.dylib 0x30d7e9e0 __workq_kernreturn + 8
1 libSystem.B.dylib 0x30d7e364 _pthread_wqthread
2 libSystem.B.dylib 0x30d76970 start_wqthread + 0

Thread 7:
0 libSystem.B.dylib 0x30d7e9e0 __workq_kernreturn + 8
1 libSystem.B.dylib 0x30d7e364 _pthread_wqthread
2 libSystem.B.dylib 0x30d76970 start_wqthread + 0

Thread 0 crashed with ARM Thread State:
r0: 0x00198930 r1: 0x344b6ce1 r2: 0x001bec59 r3: 0x000000a0
r4: 0x0019a3f2 r5: 0x782e6d6f r6: 0x344bec7c r7: 0x2fdfea54
r8: 0x00000000 r9: 0x001fc098 r10: 0x00000003 r11: 0x00000029
ip: 0x3e3cf960 sp: 0x2fdfea3c lr: 0x00002999 pc: 0x34a80466
cpsr: 0x200f0030

Binary Images:
0x1000 - 0x36fff +MyiPadApp armv7 <ddf465b3fdd191b2fcb6cfb0e5be2d68> /var/mobile/Applications/3BA6269C-7616-41ED-A1BF-1D23CA81CFA1/MyiPadApp.app/MyiPadApp
0xf6000 - 0xf7fff dns.so armv7 <fcefecb2d5e095ba88127eec3af57ec0> /usr/lib/info/dns.so
0x2fe00000 - 0x2fe27fff dyld armv7 <06e6959cebb4a72e66c833e26ae64d26> /usr/lib/dyld
0x3001f000 - 0x30026fff libbz2.1.0.dylib armv7 <2989ea7a5cad2cfe91bd632b041d0ff4> /usr/lib/libbz2.1.0.dylib
0x30054000 - 0x3016afff libicucore.A.dylib armv7 <e7fbb2ac586567e574dc33d7bb5c4dc9> /usr/lib/libicucore.A.dylib
0x302b7000 - 0x30366fff WebKit armv7 <644a1c6120578f896bed7121307aa2af> /System/Library/PrivateFrameworks/WebKit.framework/WebKit
0x303fc000 - 0x3051cfff CoreGraphics armv7 <2d7b40a7baca915ce78b1dd9a0d6433b> /System/Library/Frameworks/CoreGraphics.framework/CoreGraphics
0x3056b000 - 0x3056bfff vecLib armv7 <e53d234e808c77d286161095f92c58cf> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/vecLib
0x30641000 - 0x30700fff CFNetwork armv7 <02fe0e30e54fffdcbbbd02e8cb812c3a> /System/Library/Frameworks/CFNetwork.framework/CFNetwork
0x3076f000 - 0x307c4fff libvDSP.dylib armv7 <9365fc6cae1bff737257e74faf3b1f26> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libvDSP.dylib
0x307e6000 - 0x307e8fff libgcc_s.1.dylib armv7 <e66758bcda6da5d7f9b54fa5c4de6da2> /usr/lib/libgcc_s.1.dylib
0x30821000 - 0x30853fff AppSupport armv7 <47c8055ac99f187174ca373b702ffa68> /System/Library/PrivateFrameworks/AppSupport.framework/AppSupport
0x30854000 - 0x30854fff Accelerate armv7 <29dd5f17440bbb6e8e42e11b6fceda9a> /System/Library/Frameworks/Accelerate.framework/Accelerate
0x3091c000 - 0x30931fff libresolv.9.dylib armv7 <ea156820997ae9a2baf664d0f79f18d7> /usr/lib/libresolv.9.dylib
0x30b44000 - 0x30b46fff IOMobileFramebuffer armv7 <1040629f37795146c9dcac8ab1a868fc> /System/Library/PrivateFrameworks/IOMobileFramebuffer.framework/IOMobileFramebuffer
0x30c45000 - 0x30c74fff SystemConfiguration armv7 <3f982c11b5526fc39a92d585c60d8a90> /System/Library/Frameworks/SystemConfiguration.framework/SystemConfiguration
0x30d03000 - 0x30e14fff libSystem.B.dylib armv7 <138a43ab528bb428651e6aa7a2a7293c> /usr/lib/libSystem.B.dylib
0x30e37000 - 0x30f1ffff libGLProgrammability.dylib armv7 <1f478a71783cd7eb4ae9ef6f2dcea803> /System/Library/Frameworks/OpenGLES.framework/libGLProgrammability.dylib
0x30f20000 - 0x30f2bfff libz.1.dylib armv7 <fabaddbcbc8c02bab0261df9d78e0e25> /usr/lib/libz.1.dylib
0x31066000 - 0x31114fff QuartzCore armv7 <83a8e5f0033369e437069c1e758fed83> /System/Library/Frameworks/QuartzCore.framework/QuartzCore
0x31161000 - 0x31280fff Foundation armv7 <81d36041f04318cb51db5aafed9ce504> /System/Library/Frameworks/Foundation.framework/Foundation
0x31307000 - 0x31347fff CoreAudio armv7 <f32e03ee4c68f0db23f05afc9a3cc94c> /System/Library/Frameworks/CoreAudio.framework/CoreAudio
0x318b5000 - 0x318d5fff PrintKit armv7 <02a9c6f4173a0673c4637a3b570345cd> /System/Library/PrivateFrameworks/PrintKit.framework/PrintKit
0x31bd9000 - 0x31c02fff MobileCoreServices armv7 <54484a513761868149405df7fc29b5c0> /System/Library/Frameworks/MobileCoreServices.framework/MobileCoreServices
0x31c6d000 - 0x31d16fff libxml2.2.dylib armv7 <b3d82f80a777cb1434052ea2d232e3df> /usr/lib/libxml2.2.dylib
0x31d29000 - 0x31d2cfff IOSurface armv7 <deff02882166bf16d0765d68f0542cc8> /System/Library/PrivateFrameworks/IOSurface.framework/IOSurface
0x31d2d000 - 0x31d2ffff MobileInstallation armv7 <8e6b0d9f642be06729ffdaaee97053b0> /System/Library/PrivateFrameworks/MobileInstallation.framework/MobileInstallation
0x31d46000 - 0x31d4dfff AggregateDictionary armv7 <71372c95d4af7af787d0682a939e40ac> /System/Library/PrivateFrameworks/AggregateDictionary.framework/AggregateDictionary
0x31e09000 - 0x31e4bfff CoreTelephony armv7 <96d3af505b9f2887e62c7e99c157733e> /System/Library/Frameworks/CoreTelephony.framework/CoreTelephony
0x31e4c000 - 0x31f6cfff libmecabra.dylib armv7 <b2293b8acb00a14bace7520a63f39439> /usr/lib/libmecabra.dylib
0x320c4000 - 0x320d0fff GraphicsServices armv7 <0099670dccd99466653956bf918d667a> /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices
0x32100000 - 0x33a79fff TextInput armv7 <557601a7d93124fd5860606f294e900a> /System/Library/PrivateFrameworks/TextInput.framework/TextInput
0x33ae9000 - 0x33aebfff libAccessibility.dylib armv7 <3f0b58ea13d30f0cdb73f6ffe6d4e75c> /usr/lib/libAccessibility.dylib
0x33b49000 - 0x33c82fff AudioToolbox armv7 <657b327f2ceee9f22f9474f2f9bddbe6> /System/Library/Frameworks/AudioToolbox.framework/AudioToolbox
0x33d2c000 - 0x33d2ffff libGFXShared.dylib armv7 <3a385ed495379116abbe50bc8cd5a612> /System/Library/Frameworks/OpenGLES.framework/libGFXShared.dylib
0x33d30000 - 0x33d31fff CoreSurface armv7 <f7caaf43609cfe0e475dfe83790edb4d> /System/Library/PrivateFrameworks/CoreSurface.framework/CoreSurface
0x33d61000 - 0x33d7afff libRIP.A.dylib armv7 <ee16b5cee12a8947c8e511ed51ae7fef> /System/Library/Frameworks/CoreGraphics.framework/Resources/libRIP.A.dylib
0x340dc000 - 0x34112fff CoreText armv7 <b9b5c21b2d2a28abc47842c78c026ddf> /System/Library/Frameworks/CoreText.framework/CoreText
0x3415c000 - 0x3418ffff AddressBook armv7 <7c87e0175c8649d6832419da8a1cfac1> /System/Library/Frameworks/AddressBook.framework/AddressBook
0x341a5000 - 0x34526fff UIKit armv7 <de1cbd3219a74e4d41b30428f428e223> /System/Library/Frameworks/UIKit.framework/UIKit
0x34527000 - 0x345bafff ImageIO armv7 <5b5a294d4250eff866fdbf891b1e8b34> /System/Library/Frameworks/ImageIO.framework/ImageIO
0x34632000 - 0x34636fff AssetsLibraryServices armv7 <e861a330d14702f148ca5133dcbe954c> /System/Library/PrivateFrameworks/AssetsLibraryServices.framework/AssetsLibraryServices
0x34775000 - 0x34822fff JavaScriptCore armv7 <3f2df600942dc72aad312b3cc98ec479> /System/Library/PrivateFrameworks/JavaScriptCore.framework/JavaScriptCore
0x34852000 - 0x3485bfff CoreVideo armv7 <2092d5deb6b234e04678b7c1878ccd81> /System/Library/Frameworks/CoreVideo.framework/CoreVideo
0x3492e000 - 0x3493afff SpringBoardServices armv7 <137b75e19b2450c234dec88d538798ff> /System/Library/PrivateFrameworks/SpringBoardServices.framework/SpringBoardServices
0x3493d000 - 0x34987fff libstdc++.6.dylib armv7 <53a6e7239c3908fa8c2915b65ff3b056> /usr/lib/libstdc++.6.dylib
0x34a7d000 - 0x34b3efff libobjc.A.dylib armv7 <aaf5671a35f9ac20d5846703dafaf4c6> /usr/lib/libobjc.A.dylib
0x34b3f000 - 0x35127fff WebCore armv7 <d6bd9cf88ee82ab6b0e33e0ae1190772> /System/Library/PrivateFrameworks/WebCore.framework/WebCore
0x3520f000 - 0x352fcfff libiconv.2.dylib armv7 <c72b45f471df092dbd849081f7a3ef53> /usr/lib/libiconv.2.dylib
0x353e7000 - 0x353ecfff MobileKeyBag armv7 <cec3f3271fc267c32c169ed03e312d63> /System/Library/PrivateFrameworks/MobileKeyBag.framework/MobileKeyBag
0x3549d000 - 0x354d5fff libCGFreetype.A.dylib armv7 <374bd566263e8929c10d50d6a6a48a46> /System/Library/Frameworks/CoreGraphics.framework/Resources/libCGFreetype.A.dylib
0x35553000 - 0x35560fff OpenGLES armv7 <a12565ffb5bb42e3019f1957cd4951d0> /System/Library/Frameworks/OpenGLES.framework/OpenGLES
0x355b6000 - 0x355bcfff liblockdown.dylib armv7 <5bbd9b3f5cfece328f80c403a8805ce9> /usr/lib/liblockdown.dylib
0x356d2000 - 0x357d9fff CoreData armv7 <29b1ab7d339e42a6ff6923e54cf43e7b> /System/Library/Frameworks/CoreData.framework/CoreData
0x357da000 - 0x358c0fff CoreFoundation armv7 <01441e01f5141a50ee723362e59ca400> /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
0x35992000 - 0x3599ffff libbsm.0.dylib armv7 <0f4e595e6eb2170aceb729f32b5de8c2> /usr/lib/libbsm.0.dylib
0x35b60000 - 0x35babfff libBLAS.dylib armv7 <251c5ac7380802a16e30d827c027c637> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libBLAS.dylib
0x35bac000 - 0x35e46fff libLAPACK.dylib armv7 <2e77d87e96af938aacf0a6008e6fb89d> /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/libLAPACK.dylib
0x3601b000 - 0x3603afff Bom armv7 <0f5fd6057bad5e1677869500d636821f> /System/Library/PrivateFrameworks/Bom.framework/Bom
0x3603d000 - 0x360acfff ProofReader armv7 <d2e62a8ab7e1460c7f6de8913c703e6d> /System/Library/PrivateFrameworks/ProofReader.framework/ProofReader
0x3612f000 - 0x36137fff libkxld.dylib armv7 <854e82fe66feef01e54c7c8a209851ac> /usr/lib/system/libkxld.dylib
0x36138000 - 0x3616ffff Security armv7 <cd28e102950634ae7167ddee9c686d36> /System/Library/Frameworks/Security.framework/Security
0x36170000 - 0x361bdfff libsqlite3.dylib armv7 <55038e5c1d4d0dbdd94295e8cad7a9a4> /usr/lib/libsqlite3.dylib
0x361be000 - 0x361f8fff IOKit armv7 <eb932cc42d60e55d9a4d0691bcc3d9ad> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
0x3623f000 - 0x3627efff libGLImage.dylib armv7 <a7c117c92607a512823d307b8fdd0151> /System/Library/Frameworks/OpenGLES.framework/libGLImage.dylib

Answer 1

看起来您的应用在启动时就会收到内存警告。当您收到内存警告时，您可能会从内存中卸载尽可能多的内容，例如：你可以从别处重新加载的东西（数据库，存储等）。

你的应用程序在启动时会预先加载一堆东西吗？

此外，您可能会在某些情况下出现内存泄漏（例如，用户之前已经加载了应用程序，完成了某些操作，然后在将来启动时启动了某些内容）。您可以询问您的用户是否曾设法加载该应用。

您是否尝试在代码上运行静态分析器？（CMD移-A）

您是否尝试在“仪器”下运行应用以观察内存泄漏？

Answer 2

您的应用程序确实收到内存警告，但崩溃的原因似乎是您尝试访问坏内存（例如，尝试访问先前已发布的对象），同时尝试释放内存响应内存警告。换句话说，内存警告似乎是导致崩溃的间接原因。

布林迪是对的。问题是，您是否在启动时将任何资产或数据加载到内存中？如果是这样，我建议推迟这个，直到应用程序启动并运行。

然而，更重要的是，检查应用程序在收到内存警告时的操作。记忆警告没什么好害怕的。您只需要确保正确处理它们。

启动时iPad应用程序崩溃：帮我分析一下这个崩溃日志

2 个答案: