Perhaps refrain from practicing Mutex ?

[sigmarsson]

afaik, Mutex has thread affinity , which seldom results in facing the exception beneath. What I learned; Mutex shall be released on the same thread that it was created on - if I am not mistaken. So this is what await does not guarantee.

Perhaps would it be possible to replace Mutex with another synchronization primitive sans such affinity ?

Object synchronization method was called from an unsynchronized block of code.

STrace :

   at System.Threading.Mutex.ReleaseMutex()
   at LiteDB.SharedEngine.CloseDatabase()
   at LiteDB.SharedEngine.<Query>b__10_0()
   at LiteDB.SharedDataReader.Dispose(Boolean disposing)
   at LiteDB.SharedDataReader.Dispose()
   at LiteDB.LiteQueryable`1.<ToDocuments>d__26.MoveNext()
   at System.Linq.Enumerable.SelectEnumerableIterator`2.MoveNext()
   at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
   at System.Linq.Enumerable.EnumerablePartition`1.MoveNext()
   at System.Linq.Enumerable.DistinctIterator`1.MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at Weather.History.Entity.QuaryableEx.GetPaged[T](IQueryable`1 query, Int32 page, Int32 pageSize) in C:\Users\gombata-locadmin\source\repos\Weather.History\Weather.History.Entity\Extension\QuaryableEx.cs:line 28
   at Weather.History.Dal.StemDataProvider.<>c__DisplayClass2_0.<RetrieveChunk>b__0() in C:\Users\gombata-locadmin\source\repos\Weather.History\Weather.History.Dal\StemDataProvider.cs:line 28
   at System.Threading.Tasks.Task`1.InnerInvoke()
   at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread)
--- End of stack trace from previous location ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at Weather.History.Mvvm.ViewModels.ChartRelayViewModel.<OnType>d__13.MoveNext() in C:\Users\gombata-locadmin\source\repos\Weather.History\Weather.History.Shared\Mvvm\ViewModels\ChartRelayViewModel.cs:line 102

[tjmoore]

Relates to #1546