iOS OnSleep Sqlite3 Crash

[LloydNicholson]

Hi,

I found this bug today when using iOS 14 but I have a tester who is using 13.6.1 and the same issue occurs. This only happens on iOS and only when the app goes into the background.

Reproduction Steps: App goes into the background and OnSleep is called in App.xaml.cs. Wait for about 10 secs and then this error message is displayed.

Stack Trace after the crash:

=================================================================
	Native Crash Reporting
=================================================================
Got a segv while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries 
used by your application.
=================================================================

=================================================================
	Native stacktrace:
=================================================================
	0x10d5795a8 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x10d56f820 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x10d57d9d0 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : mono_pmip
	0x1d4a7bdbc - /usr/lib/system/libsystem_platform.dylib : <redacted>
	0x1047894d8 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_sourceid
	0x1047894d8 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_sourceid
	0x104788db0 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_sourceid
	0x10478f8f0 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_sourceid
	0x104766a38 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_backup_step
	0x10479b024 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_sourceid
	0x10476a8e0 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_step
	0x10c5be048 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x10c5a3ac0 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x10c55ef18 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x10c4a0844 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x10c471a80 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x10c47117c - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x10c4b1e84 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x10c500f24 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x10c4a18ac - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x104b1aa88 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x104b26ac4 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x104b26d38 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x104aef5bc - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x104aef3bc - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x104b2d018 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x104b26c50 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x104b26b28 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x104af9318 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x106d6a3b0 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x104afb3d8 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x10521f660 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : sqlite3_rekey_v2
	0x10d580e14 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : mono_pmip
	0x10d63e97c - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : mono_pmip
	0x10d681fc8 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : mono_pmip
	0x10d67f8a4 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : mono_pmip
	0x10d68b03c - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : mono_pmip
	0x10d68aec0 - /private/var/containers/Bundle/Application/1894D343-CCA5-4A0E-AFDD-11C114480E8F/SmartSales.Mobile.iOS.app/SmartSales.Mobile.iOS : mono_pmip
	0x1d4a8ab70 - /usr/lib/system/libsystem_pthread.dylib : _pthread_start
	0x1d4a8f880 - /usr/lib/system/libsystem_pthread.dylib : thread_start

=================================================================
	Basic Fault Address Reporting
=================================================================
Memory around native instruction pointer (0x104789c90):0x104789c80  f4 03 01 aa f3 03 00 aa 08 18 40 f9 15 01 40 f9  ..........@...@.
0x104789c90  a0 06 40 ad a2 0a c0 3d e1 0b 02 ad e0 0f 80 3d  ..@....=.......=
0x104789ca0  08 fc 40 39 1f 09 00 71 a0 00 00 54 60 06 40 f9  ..@9...q...T`.@.
0x104789cb0  08 00 40 f9 08 3d 40 f9 00 01 3f d6 a0 86 41 ad  ..@..=@...?...A.

=================================================================
	Managed Stacktrace:
=================================================================
	  at <unknown> <0xffffffff>
	  at NativeMethods:sqlite3_step <0x00007>
	  at SQLitePCL.SQLite3Provider_internal:SQLitePCL.ISQLite3Provider.sqlite3_step <0x0005f>
	  at SQLitePCL.raw:sqlite3_step <0x00097>
	  at <>c__DisplayClass8_0:<PrepareToExecute>b__1 <0x006e3>
	  at Akavache.Sqlite3.SqliteOperationQueue:MarshalCompletion <0x0013f>
	  at Akavache.Sqlite3.SqliteOperationQueue:ProcessItems <0x008db>
	  at <<Start>b__0>d:MoveNext <0x00843>
	  at System.Runtime.CompilerServices.AsyncTaskMethodBuilder:Start <0x001a3>
	  at <>c__DisplayClass18_0:<Start>b__0 <0x0011b>
	  at System.Threading.Tasks.Task`1:InnerInvoke <0x00057>
	  at System.Threading.Tasks.Task:Execute <0x00023>
	  at System.Threading.Tasks.Task:ExecutionContextCallback <0x00057>
	  at System.Threading.ExecutionContext:RunInternal <0x001ab>
	  at System.Threading.ExecutionContext:Run <0x0002b>
	  at System.Threading.Tasks.Task:ExecuteWithThreadLocal <0x00127>
	  at System.Threading.Tasks.Task:ExecuteEntry <0x0010f>
	  at System.Threading.Tasks.Task:System.Threading.IThreadPoolWorkItem.ExecuteWorkItem <0x00017>
	  at System.Threading.ThreadPoolWorkQueue:Dispatch <0x001e7>
	  at ObjCRuntime.Runtime:ThreadPoolDispatcher <0x0003f>
	  at System.Threading._ThreadPoolWaitCallback:PerformWaitCallback <0x00087>
	  at System.Object:runtime_invoke_dynamic <0x0010f>
=================================================================

This hasn't happened before so I am not sure why this has suddenly come up now.