Question

这是我的32位.net应用程序在连接到sql server时偶然发生的随机错误。

System.ApplicationException: A device attached to the system is not functioning. (Exception from HRESULT: 0x8007001F)
   at System.Threading.TimerBase.AddTimerNative(Object state, UInt32 dueTime, UInt32 period, StackCrawlMark& stackMark)
   at System.Threading.TimerBase.AddTimer(TimerCallback callback, Object state, UInt32 dueTime, UInt32 period, StackCrawlMark& stackMark)
   at System.Threading.Timer..ctor(TimerCallback callback, Object state, Int32 dueTime, Int32 period)
   at System.Data.ProviderBase.DbConnectionPool.CreateCleanupTimer()
   at System.Data.ProviderBase.DbConnectionPool.Startup()
   at System.Data.ProviderBase.DbConnectionPoolGroup.GetConnectionPool(DbConnectionFactory connectionFactory)
   at System.Data.ProviderBase.DbConnectionFactory.GetConnectionPool(DbConnection owningObject, DbConnectionPoolGroup connectionPoolGroup)
   at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
   at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
   at System.Data.SqlClient.SqlConnection.Open()
   at System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
   at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
   at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet)

System.Threading.TimerBase.AddTimerNative()方法是内部通话，请参阅Microsoft source code.

我在网上发现了另一个关于CLR的链接 Does CLR internally spawns a thread to respond to timer events?

由于我不知道如何实现AddTimerNative，我不知道解决此错误的原因。

.net应用程序有一个附加到系统的设备不起作用

0 个答案: