我是使用xamarin iOS构建的应用程序。数据库是sqlite。在模拟器和设备中，应用程序开始处理数据后，它会给我一个SIGSEGV错误。
堆栈跟踪：
at（wrapper managed-to-native）Mono.Data.Sqlite.UnsafeNativeMethods.sqlite3_prepare（intptr，intptr，int，intptr＆amp;，intptr＆amp;） 在/ Developer / MonoTouch / Source / mono / mcs / class中的Mono.Data.Sqlite.SQLite3.Prepare（Mono.Data.Sqlite.SqliteConnection，string，Mono.Data.Sqlite.SqliteStatement，uint，string＆amp;）[0x00044] /Mono.Data.Sqlite/Mono.Data.Sqlite_2.0/SQLite3.cs:268 在/Developer/MonoTouch/Source/mono/mcs/class/Mono.Data.Sqlite/Mono.Data.Sqlite_2.0/SQLiteCommand.cs:230中的Mono.Data.Sqlite.SqliteCommand.BuildNextCommand（）[0x00019] 在/Developer/MonoTouch/Source/mono/mcs/class/Mono.Data.Sqlite/Mono.Data.Sqlite_2.0/SQLiteCommand.cs:264中的Mono.Data.Sqlite.SqliteCommand.GetStatement（int）[0x0000b]中 at（wrapper remoting-invoke-with-check）Mono.Data.Sqlite.SqliteCommand.GetStatement（int） 在/Developer/MonoTouch/Source/mono/mcs/class/Mono.Data.Sqlite/Mono.Data.Sqlite_2.0/SQLiteDataReader.cs:896中的Mono.Data.Sqlite.SqliteDataReader.NextResult（）[0x000cc] 在/Developer/MonoTouch/Source/mono/mcs/class/Mono.Data.Sqlite/Mono中的Mono.Data.Sqlite.SqliteDataReader..ctor（Mono.Data.Sqlite.SqliteCommand，System.Data.CommandBehavior）[0x00051] .Data.Sqlite_2.0 / SQLiteDataReader.cs：89 at（wrapper remoting-invoke-with-check）Mono.Data.Sqlite.SqliteDataReader..ctor（Mono.Data.Sqlite.SqliteCommand，System.Data.CommandBehavior） 在/Developer/MonoTouch/Source/mono/mcs/class/Mono.Data.Sqlite/Mono.Data.Sqlite_2.0/SQLiteCommand中的Mono.Data.Sqlite.SqliteCommand.ExecuteReader（System.Data.CommandBehavior）[0x00006]。 CS：539 在/Developer/MonoTouch/Source/mono/mcs/class/Mono.Data.Sqlite/Mono.Data.Sqlite_2.0/SQLiteCommand中的Mono.Data.Sqlite.SqliteCommand.ExecuteDbDataReader（System.Data.CommandBehavior）[0x00000]。 CS：527 在/Developer/MonoTouch/Source/mono/mcs/class/System.Data/System.Data.Common/DbCommand.cs:128中的System.Data.Common.DbCommand.ExecuteReader（System.Data.CommandBehavior）[0x00000] /Developer/MonoTouch/Source/mono/mcs/class/System.Data/System.Data.Common/中的System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader（System.Data.CommandBehavior）[0x00000] DbCommand.cs：145 在/Developer/MonoTouch/Source/mono/mcs/class/System.Data/中的System.Data.Common.DbDataAdapter.Fill（System.Data.DataTable，System.Data.IDbCommand，System.Data.CommandBehavior）[0x00022] System.Data.Common / DbDataAdapter.cs：297 在/Developer/MonoTouch/Source/mono/mcs/class/System.Data/System.Data.Common/DbDataAdapter.cs:273中的System.Data.Common.DbDataAdapter.Fill（System.Data.DataTable）[0x00011] at（wrapper remoting-invoke-with-check）System.Data.Common.DbDataAdapter.Fill（System.Data.DataTable） 在PL.Dati.TabellaDati..ctor（PL.Dati.ConnessioneDB，string，string）[0x000e8] / Sviluppo / Librerie / Gestione Dati / PL.Dati.Mobile / Versioni / iOS / PL.Dati.iOS / TabellaDatiiOS。 CS：26 在PL.Dati.ConnessioneDB.EseguiSelezione（字符串）[0x00000] / Sviluppo / Librerie / Gestione Dati / PL.Dati.Mobile / Comune / ConnessioneDB.cs：206 at PL.Dati.ConnessioneDB.EseguiSelezione（string，string，string，bool，int，string []）[0x00137] in / Sviluppo / Librerie / Gestione Dati / PL.Dati.Mobile / Comune / ConnessioneDB.cs：192 at PLV.Dati.ConnessioneDB.EseguiSelezione（string，string，string，int）[0x00000] / Sviluppo / Librerie / Gestione Dati / PL.Dati.Mobile / Comune / ConnessioneDB.cs：125 at PL.Dati.ConnessioneDB.EseguiInserimentoTabellaDati（string，PL.Dati.TabellaDati，string []）[0x0004d] in / Sviluppo / Librerie / Gestione Dati / PL.Dati.Mobile / Comune / ConnessioneDB.cs：860 在PL.Dati.ConnessioneDB.EseguiInserimentoTabellaDati（string，PL.Dati.TabellaDati）[0x00000] / Sviluppo / Librerie / Gestione Dati / PL.Dati.Mobile / Comune / ConnessioneDB.cs：828 来自/Sviluppo /Procedure / iSell / Comune at iSell.Core.GestioneTrasmissioni.ElaboraDatiDownload（bool）[0x002a0] in /Sviluppo/Procedure/iSell/Comune/Gestione/GestioneTrasmissioni.cs:888 来自/Sviluppo /Procedure / iSell / Comune 来自/Sviluppo /Procedure / iSell / Comune at iSell.Core.GestoreInterfacciaTrasmissioni.RichiestaElaborazioneComando（string，object，object）[0x000c5] in /Sviluppo/Procedure/iSell/Comune/Interfacce/Client/GestoreInterfacciaTrasmissioni.cs:69 在iSell.Core.RicevitoreComandi.RichiediElaborazioneComando（）[0x00036] in /Sviluppo/Procedure/iSell/Comune/EngineDati/RicevitoreComandi.cs:97 at iSell.Core.RicevitoreComandi.RichiediElaborazioneComando（object）[0x00007] in /Sviluppo/Procedure/iSell/Comune/EngineDati/RicevitoreComandi.cs:111 在iSell.Core.GestoreInterfacciaVisualizzazioneSorgenteDati.NotificaChiusuraInterfaccia（iSell.Core.GestioneInterfacce / TipiChiusuraInterfaccia）[0x00012] / Sviluppo / Procedure / iSell / Comune / Interfacce / Interazione utente / GestoreInterfacciaVisualizzazioneSorgenteDati.cs：54 在iSell.OS.ViewControllerStandard.ChiudiInterfaccia（iSell.Core.GestioneInterfacce / TipiChiusuraInterfaccia）[0x0009e] / Sviluppo / Procedure / iSell / Versioni / iSelliOS / iOS / Interfaccie / Classi ausiliarie / ViewControllerStandard.cs：319 at iSell.OS.ViewControllerStandard.ChiudiInterfaccia（）[0x000a1] / Sviluppo / Procedure / iSell / Versioni / iSelliOS / iOS / Interfaccie / Classi ausiliarie / ViewControllerStandard.cs：277 位于/ Sviluppo / Procedure / iSell / Versioni / iSelliOS / iOS / Interfaccie / Classi ausiliarie / ViewControllerStandard.cs： at iSell.Core.GestoreInterfacciaStandard.ChiudiInterfaccia（）[0x0000b] in /Sviluppo/Procedure/iSell/Comune/Interfacce/Client/GestoreInterfacciaStandard.cs:77 来自/ Sviluppo / Procedure / iSell / Comune / Interfacce / Interazione utente / GestoreInterfacciaVisualizzazioneSorgenteDati.cs：39 at（wrapper delegate-invoke）.invoke_void_ this SorgenteDati_IndiceElementoDati（PL.Dati.SorgenteDati，PL.Dati.IndiceElementoDati） 在PL.Dati.SorgenteDati.HandleIndiceElementoDatiCorrenteInSezioneModificato（PL.Dati.SezioneSorgenteDati，int）[0x00026] / Sviluppo / Librerie / Gestione Dati / PL.Dati.Mobile / Comune / SorgenteDati.cs：145 在PL.Dati.SezioneSorgenteDati.HandleIndiceElementoDatiCorrenteModificato（PL.Dati.SezioneSorgenteDati，int）[0x0000b]在/ Sviluppo / Librerie / Gestione Dati / PL.Dati.Mobile / Comune / SezioneSorgenteDati.cs：143 在PL.Dati.SezioneSorgenteDati.ImpostaIndiceElementoDatiCorrente（int，bool）[0x000e2] / Sviluppo / Librerie / Gestione Dati / PL.Dati.Mobile / Comune / SezioneSorgenteDati.cs：723 在PL.Dati.SorgenteDati.ImpostaIndiceElementoDatiCorrenteInSezione（int，int，bool）[0x00063] / Sviluppo / Librerie / Gestione Dati / PL.Dati.Mobile / Comune / SorgenteDati.cs：616 在PL.Dati.SorgenteDati.ImpostaIndiceElementoDatiCorrenteInSezione（int，int）[0x00000] / Sviluppo / Librerie / Gestione Dati / PL.Dati.Mobile / Comune / SorgenteDati.cs：594 在iSell.OS.SorgenteTableViewStandard.RowSelected（MonoTouch.UIKit.UITableView，MonoTouch.Foundation.NSIndexPath）[0x00000] / Sviluppo / Procedure / iSell / Versioni / iSelliOS / iOS / Interfaccie / Classi ausiliarie / SorgenteTableViewStandard.cs：298 at（wrapper runtime-invoke）.runtime_invoke_void__this _object_object（object，intptr，intptr，intptr） at（包装器托管到原生）MonoTouch.UIKit.UIApplication.UIApplicationMain（int，string []，intptr，intptr） 在/Developer/MonoTouch/Source/monotouch/src/UIKit/UIApplication.cs:38中的MonoTouch.UIKit.UIApplication.Main（string []，string，string）[0x0004c] 在/Developer/MonoTouch/Source/monotouch/src/UIKit/UIApplication.cs:43中的MonoTouch.UIKit.UIApplication.Main（string []）[0x00000] at iSell.OS.Application.Main（string []）[0x00000] in /Sviluppo/Procedure/iSell/Versioni/iSelliOS/Main.cs:13 at（wrapper runtime-invoke）.runtime_invoke_void_object（object，intptr，intptr，intptr）
原生堆栈跟踪：
0 iSell 0x0007b09c mono_handle_native_sigsegv + 284
1 iSell 0x00004f38 mono_sigsegv_signal_handler + 248
2 libsystem_c.dylib 0x9c3ba59b _sigtramp + 43
3 ??? 0xffffffff 0x0 + 4294967295
4 libsqlite3.dylib 0x04284f81 sqlite3ExprAlloc + 257
5 libsqlite3.dylib 0x04284a5b selectExpander + 2859
6 libsqlite3.dylib 0x042817d8 sqlite3WalkSelect + 104
7 libsqlite3.dylib 0x04280b0c sqlite3SelectPrep + 76
8 libsqlite3.dylib 0x0426d448 sqlite3Select + 424
9 libsqlite3.dylib 0x04261cdd yy_reduce + 8301
10 libsqlite3.dylib 0x0425f535 sqlite3Parser + 245
11 libsqlite3.dylib 0x042264ac sqlite3RunParser + 396
12 libsqlite3.dylib 0x042a50fa sqlite3Prepare + 634
13 libsqlite3.dylib 0x0422564e sqlite3LockAndPrepare + 270
14 libsqlite3.dylib 0x04225205 sqlite3_prepare + 53
15 ??? 0x19ef1687 0x0 + 435099271
16 ??? 0x19ef0960 0x0 + 435095904
17 ??? 0x19ef0455 0x0 + 435094613
18 ??? 0x19ef0164 0x0 + 435093860
19 ??? 0x19ef00e4 0x0 + 435093732
20 ??? 0x19eefaa4 0x0 + 435092132
21 ??? 0x19eef5f2 0x0 + 435090930
22 ??? 0x19eef468 0x0 + 435090536
23 ??? 0x19eee884 0x0 + 435087492
24 ??? 0x19ef8ea8 0x0 + 435130024
25 ??? 0x19ef8e63 0x0 + 435129955
26 ??? 0x19ef8e10 0x0 + 435129872
27 ??? 0x19ef8cab 0x0 + 435129515
28 ??? 0x19ef8946 0x0 + 435128646
29 ??? 0x19ef8864 0x0 + 435128420
30 ??? 0x19ef7c40 0x0 + 435125312
31 ??? 0x19ef76c4 0x0 + 435123908
32 ??? 0x1a1c9c04 0x0 + 438082564
33 ??? 0x1a1c9770 0x0 + 438081392
34 ??? 0x1cb20058 0x0 + 481427544
35 ??? 0x1cb1fd7c 0x0 + 481426812
36 ??? 0x1c8c6610 0x0 + 478963216
37 ??? 0x19e990e8 0x0 + 434737384
38 ??? 0x19e9470c 0x0 + 434718476
39 ??? 0x19e94494 0x0 + 434717844
40 ??? 0x1c7dcd8c 0x0 + 478006668
41 ??? 0x1c7dc8d8 0x0 + 478005464
42 ??? 0x1c7dc7c8 0x0 + 478005192
43 ??? 0x1c7dc6a8 0x0 + 478004904
44 ??? 0x1c7db70b 0x0 + 478000907
45 ??? 0x1c7dd755 0x0 + 478009173
46 ??? 0x1c7dd4cf 0x0 + 478008527
47 ??? 0x1c7dd46e 0x0 + 478008430
48 ??? 0x1c7dd413 0x0 + 478008339
49 ??? 0x1a1ef511 0x0 + 438236433
50 ??? 0x1a1eef87 0x0 + 438235015
51 ??? 0x1a1eeea6 0x0 + 438234790
52 ??? 0x1a1eedcc 0x0 + 438234572
53 ??? 0x1a1ee91c 0x0 + 438233372
54 ??? 0x1a1ee740 0x0 + 438232896
55 ??? 0x1a1ee34c 0x0 + 438231884
56 ??? 0x1a1ee6dd 0x0 + 438232797
57 iSell 0x00009282 mono_jit_runtime_invoke + 722
58 iSell 0x00152a8e mono_runtime_invoke + 126
59 iSell 0x00200ff6 monotouch_trampoline + 3686
60 UIKit 0x019fb285 -[UITableView _selectRowAtIndexPath:animated:scrollPosition:notifyDelegate:] + 1194
61 UIKit 0x019fb4ed -[UITableView _userSelectRowAtPendingSelectionIndexPath:] + 201
62 Foundation 0x00a415b3 __NSFireDelayedPerform + 380
63 CoreFoundation 0x03e81376 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 22
64 CoreFoundation 0x03e80e06 __CFRunLoopDoTimer + 534
65 CoreFoundation 0x03e68a82 __CFRunLoopRun + 1810
66 CoreFoundation 0x03e67f44 CFRunLoopRunSpecific + 276
67 CoreFoundation 0x03e67e1b CFRunLoopRunInMode + 123
68 GraphicsServices 0x04e177e3 GSEventRunModal + 88
69 GraphicsServices 0x04e17668 GSEventRun + 104
70 UIKit 0x0194bffc UIApplicationMain + 1211
71 ??? 0x0edecc8d 0x0 + 249482381
72 ??? 0x0edec790 0x0 + 249481104
73 ??? 0x0edec56c 0x0 + 249480556
74 ??? 0x0edec3a4 0x0 + 249480100
75 ??? 0x0edec516 0x0 + 249480470
76 iSell 0x00009282 mono_jit_runtime_invoke + 722
77 iSell 0x00152a8e mono_runtime_invoke + 126
78 iSell 0x00156db4 mono_runtime_exec_main + 420
79 iSell 0x00157125 mono_runtime_run_main + 725
80 iSell 0x000641d5 mono_jit_exec + 149
81 iSell 0x001f63a4 main + 1988
82 iSell 0x00002be5 start + 53
83 ??? 0x00000004 0x0 + 4
=============================================== ================== 执行本机代码时获得SIGSEGV。这通常表明 单声道运行时或其中一个本机库中的致命错误
有人可以帮助我吗？
答案 0 :(得分：1)
这可能是垃圾收集器的一个问题。 确保将SQLCommand和reader设置为null并设置为null。 看看这个： http://www.aaronheise.com/2012/12/monotouch-sqlite-sigsegv/#comment-10