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我正在使用返回XML的Web服務從Web請求東西。 只要設備沒有鎖定，這工作正常。如果用戶關閉設備或在配置的超時後鎖定設備，則Web服務將失敗。我在這裏附加了堆棧跟蹤。 我在想什麼：我沒有在我的測試應用程序中使用webservice（通過SOAP調用）的結果做任何事情。它仍然崩潰，試圖稱爲「mprotect」或其他東西。什麼是問題，以及如果設備被鎖定，我如何讓我的應用程序繼續運行？ 我一直認爲鎖定不同於推送到背景 - 應用程序應該保持活動狀態。在設備被鎖定後調用webservice時出現異常
我發現「errno 12」的意思是「內存不足」，但事實並非如此。如果設備沒有鎖定，測試應用會持續數小時。只要它鎖定，它會再做一次請求並崩潰。此外儀器顯示（在盧克的問題一樣：Explanation of MProtect Errno 12 (ENOMEM)）40MB的恆定內存使用
Mprotect failed at 0x5f55000 (length 1396736) with errno 12
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: Stacktrace:
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at (wrapper managed-to-native) string.InternalAllocateStr (int) <0xffffffff>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at System.Text.StringBuilder.InternalEnsureCapacity (int) <0x000bc>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at System.Text.StringBuilder.Append (char) <0x00047>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at Mono.Xml2.XmlTextReader.ReadText (bool) <0x00117>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at Mono.Xml2.XmlTextReader.ReadContent() <0x001fb>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at Mono.Xml2.XmlTextReader.Read() <0x001a3>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at System.Xml.XmlTextReader.Read() <0x000d7>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at System.Xml.XmlReader.ReadElementString() <0x00067>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at System.Xml.Serialization.XmlSerializationReaderInterpreter.ReadPrimitiveValue (System.Xml.Serialization.XmlTypeMapElementInfo) <0x000b3>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at System.Xml.Serialization.XmlSerializationReaderInterpreter.ReadObjectElement (System.Xml.Serialization.XmlTypeMapElementInfo) <0x00083>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at System.Xml.Serialization.XmlSerializationReaderInterpreter.ReadMembers (System.Xml.Serialization.ClassMap,object,bool,bool) <0x0140f>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at System.Xml.Serialization.XmlSerializationReaderInterpreter.ReadMessage (System.Xml.Serialization.XmlMembersMapping) <0x0037b>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at System.Xml.Serialization.XmlSerializationReaderInterpreter.ReadRoot() <0x00153>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at System.Xml.Serialization.XmlSerializer.Deserialize (System.Xml.Serialization.XmlSerializationReader) <0x000cb>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at System.Xml.Serialization.XmlSerializer.Deserialize (System.Xml.XmlReader) <0x00073>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at System.Web.Services.Protocols.WebServiceHelper.ReadSoapMessage (System.Xml.XmlTextReader,System.Xml.Serialization.XmlSerializer,System.Xml.Serialization.XmlSerializer,bool,object&,System.Web.Services.Protocols.SoapHeaderCollection&) <0x00277>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at System.Web.Services.Protocols.WebServiceHelper.ReadSoapMessage (System.Xml.XmlTextReader,System.Web.Services.Protocols.SoapMethodStubInfo,System.Web.Services.Protocols.SoapHeaderDirection,bool,object&,System.Web.Services.Protocols.SoapHeaderCollection&) <0x0007b>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at System.Web.Services.Protocols.SoapHttpClientProtocol.ReceiveResponse (System.Net.WebResponse,System.Web.Services.Protocols.SoapClientMessage,System.Web.Services.Protocols.SoapExtension[]) <0x003fb>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke (string,object[]) <0x00353>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at iBrainloop.API210.API210.DMOGetChunked (string,int,int,bool,int) <0x00157>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at iOSTest.AppDelegate/<FinishedLaunching>c__AnonStorey1.<>m__0() <0x00217>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: at (wrapper runtime-invoke) object.runtime_invoke_dynamic (intptr,intptr,intptr,intptr) <0x000c3>
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: Native stacktrace:
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: 0 iOSTest 0x006ada34 iOSTest + 6998580
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: 1 iOSTest 0x006cc370 iOSTest + 7123824
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: 2 libsystem_c.dylib 0x336b472f _sigtramp + 42
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: 3 libsystem_c.dylib 0x336a93bb pthread_kill + 58
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: 4 libsystem_c.dylib 0x336a1bff abort + 78
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: 5 iOSTest 0x007ef40c iOSTest + 8315916
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: 6 iOSTest 0x007e2b34 iOSTest + 8264500
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: 7 iOSTest 0x007e281c iOSTest + 8263708
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: 8 iOSTest 0x007e9150 iOSTest + 8290640
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: 9 iOSTest 0x007e97f4 iOSTest + 8292340
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: 10 iOSTest 0x007e9ad4 iOSTest + 8293076
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: 11 iOSTest 0x00778324 iOSTest + 7828260
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: 12 iOSTest 0x00778794 iOSTest + 7829396
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: 13 iOSTest 0x00794d04 iOSTest + 7945476
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: 14 iOSTest 0x0037d39c iOSTest + 3654556
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: =================================================================
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: Got a SIGABRT while executing native code. This usually indicates
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: a fatal error in the mono runtime or one of the native libraries
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: used by your application.
Apr 27 20:25:54 unknown UIKitApplication:iostest[0x9bc1][649] <Notice>: =================================================================
Apr 27 20:25:54 unknown ReportCrash[651] <Notice>: Formulating crash report for process iOSTest[649]
Apr 27 20:25:54 unknown com.apple.launchd[1] <Warning>: (UIKitApplication:iostest[0x9bc1]) Job appears to have crashed: Abort trap: 6
Apr 27 20:25:54 unknown SpringBoard[479] <Warning>: Application 'iOSTest' exited abnormally with signal 6: Abort trap: 6
Apr 27 20:25:54 unknown ReportCrash[651] <Error>: libMobileGestalt loadBasebandMobileEquipmentInfo: CommCenter error: 1:45
Apr 27 20:25:54 unknown ReportCrash[651] <Error>: libMobileGestalt copyInternationalMobileEquipmentIdentity: Could not get mobile equipment info dictionary
Apr 27 20:25:54 unknown ReportCrash[651] <Error>: libMobileGestalt copyInternationalMobileEquipmentIdentity: Could not get mobile equipment info dictionary
Apr 27 20:25:54 unknown ReportCrash[651] <Error>: Saved crashreport to /var/mobile/Library/Logs/CrashReporter/iOSTest_2011-04-27-202554_iPad-Fuji-ID-0240.plist using uid: 0 gid: 0, synthetic_euid: 501 egid: 0
？我有接下來的幾天工作，以真正解決這個問題！ – Luke 2011-04-28 07:57:55
我正在使用MT 4.0.1，Xcode 3，SDK 4.3。如果您找到解決方案，請告訴我。但由於這是一個MT內部，我沒有太多的希望。 – Krumelur 2011-04-28 13:49:57
另一個問題已經出現 - http://stackoverflow.com/questions/5819700/why-is-our-monotouch-app-breaking-in-the-garbage-collector-it-is-not-out-of-memo他似乎真的打開了，並且願意傳遞一個正在運行的測試用例，希望隧道盡頭有燈光！ – Luke 2011-04-28 14:14:00