Hi, This is a common exception which is handled within the QueryParser itself. You're seeing a first chance exception which does not cause the crashes you're experiencing.
Is this from a production system? Can you share the raw memory dump, or does it contain sensitive information? // Simon On 23 apr 2012, at 15:21, Alastair Todd wrote: > I have been investigating an IIS 7.5 crashing website which only gets fixed > by an app pool recycle. > > I have used DebugDiag to catch crash exceptions. The problem appears to be > manifesting itself in Lucene.Net. > > I am confused as to why this would fatally crash IIS. Should we be wrapping > a try catch around the call and throwing our own exception? > > Any "normal" website exception would normally be bubbled up and logged by > ELMAH, but this error never finds its way into the ELMAH log (makes sense > since it crashes IIS). > > How would you go about keeping this site up? > > Here's the report: > > Report for W3WP__~1.DMP > Type of Analysis Performed Crash Analysis > Machine Name WEB01 > Operating System Windows Server 2008 Service Pack 2 > Number Of Processors 8 > Process ID 20048 > Process Image C:\Windows\SysWOW64\inetsrv\w3wp.exe > System Up-Time 214 day(s) 23:40:43 > Process Up-Time 00:44:32 > > > Thread 34 - System ID 22368 > Entry point mscorwks!Thread::intermediateThreadProc > Create time 23/04/2012 11:49:25 > Time spent in user mode 0 Days 0:0:16.582 > Time spent in kernel mode 0 Days 0:0:1.622 > > > > > > > > .NET Call Stack > > > > Function > Lucene.Net.QueryParsers.FastCharStream.Refill() > Lucene.Net.QueryParsers.FastCharStream.ReadChar() > Lucene.Net.QueryParsers.QueryParserTokenManager.JjMoveNfa_3(Int32, Int32) > Lucene.Net.QueryParsers.QueryParserTokenManager.JjMoveStringLiteralDfa0_3() > Lucene.Net.QueryParsers.QueryParserTokenManager.GetNextToken() > Lucene.Net.QueryParsers.QueryParser.Jj_scan_token(Int32) > Lucene.Net.QueryParsers.QueryParser.Jj_3R_2() > Lucene.Net.QueryParsers.QueryParser.Jj_3_1() > Lucene.Net.QueryParsers.QueryParser.Jj_2_1(Int32) > Lucene.Net.QueryParsers.QueryParser.Clause(System.String) > Lucene.Net.QueryParsers.QueryParser.Query(System.String) > Lucene.Net.QueryParsers.QueryParser.TopLevelQuery(System.String) > Lucene.Net.QueryParsers.QueryParser.Parse(System.String) > OurProject.Content.Search.SearchManager.GetModuleSearchResults(System.String) > Search.Page_Load(System.Object, System.EventArgs) > System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr, > System.Object, System.Object, System.EventArgs) > System.Web.Util.CalliEventHandlerDelegateProxy.Callback(System.Object, > System.EventArgs) > System.Web.UI.Control.OnLoad(System.EventArgs) > System.Web.UI.Control.LoadRecursive() > System.Web.UI.Page.ProcessRequestMain(Boolean, Boolean) > System.Web.UI.Page.ProcessRequest(Boolean, Boolean) > System.Web.UI.Page.ProcessRequest() > System.Web.UI.Page.ProcessRequestWithNoAssert(System.Web.HttpContext) > System.Web.UI.Page.ProcessRequest(System.Web.HttpContext) > ASP.search_aspx.ProcessRequest(System.Web.HttpContext) > System.Web.HttpApplication+CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() > System.Web.HttpApplication.ExecuteStep(IExecutionStep, Boolean ByRef) > System.Web.HttpApplication+PipelineStepManager.ResumeSteps(System.Exception) > System.Web.HttpRuntime.ProcessRequestNotificationPrivate(System.Web.Hosting.IIS7WorkerRequest, > System.Web.HttpContext) > System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr, > IntPtr, IntPtr, Int32) > System.Web.Hosting.UnsafeIISMethods.MgdIndicateCompletion(IntPtr, > System.Web.RequestNotificationStatus ByRef) > System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr, > IntPtr, IntPtr, Int32) > System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr, > IntPtr, IntPtr, Int32) > > > Full Call Stack > > > > Function Arg 1 Arg 2 Arg 3 Arg 4 Source > kernel32!RaiseException+58 e0434f4d 00000001 00000001 > 1cc0ec08 > mscorwks!RaiseTheExceptionInternalOnly+2a8 29af23c4 00000000 > 00000000 c22aa5e5 > mscorwks!JIT_Throw+fc 0000000f 29aefc04 29af12f0 7fffffff > Lucene.Net.QueryParsers.FastCharStream.Refill() c22aa4c1 > 00000000 29af12f0 00000000 > mscorwks!JIT_NewArr1+1e3 00000000 29aef878 1cc0ee20 1cc0ede8 > Lucene.Net.QueryParsers.QueryParser.Jj_scan_token(Int32) 29aef878 > 1cc0edf8 017167c5 29af1310 > Lucene.Net.QueryParsers.QueryParser.Jj_3R_2() 29af1310 > 29aef878 1cc0ee30 0171672c > Lucene.Net.QueryParsers.QueryParser.Jj_3_1() 29af1310 29aef878 > 00000000 00000002 > Lucene.Net.QueryParsers.QueryParser.Jj_2_1(Int32) 29aef878 > 29af1310 00000000 00000000 > Lucene.Net.QueryParsers.QueryParser.Clause(System.String) 29aef1e8 > 29ab4cf0 29aeb9a8 1cc0ef70 > System.Web.UI.StateBag.get_Item(System.String) 0c9955e8 > 1cc0ef94 6ff33d94 0c9955e8 > System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr, > System.Object, System.Object, System.EventArgs) 0c9955e8 > 29ab4cf0 29ab4cf0 29adf078 > System.Web.Util.CalliEventHandlerDelegateProxy.Callback(System.Object, > System.EventArgs) 0c9955e8 29ab4cf0 29ab4cf0 1cc0f108 > System.Web.UI.Control.OnLoad(System.EventArgs) 01eda6a4 > 29ab4cf0 29ab4cf0 1cc0f108 > System.Web.UI.Control.LoadRecursive() 00000000 0a9901d0 > 00000000 29a6600c > System.Web.UI.Page.ProcessRequestMain(Boolean, Boolean) 00000001 > 29ab4cf0 00000001 00000000 > System.Web.UI.Page.ProcessRequest(Boolean, Boolean) 00000001 > 0e9e76bc 0e9e76bc 0c990f4c > System.Web.UI.Page.ProcessRequest() 29ab4cf0 1cc0f1ac > 6ff28e32 00000000 > System.Web.UI.Page.ProcessRequestWithNoAssert(System.Web.HttpContext) > 00000000 29ab4cf0 29a6ac0c 1cc0f1e4 > System.Web.UI.Page.ProcessRequest(System.Web.HttpContext) 0250af40 > 00000000 29a6600c 00000000 > System.Web.HttpApplication+CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() > 00000000 00000000 00000000 29a6ac0c > System.Web.HttpApplication.ExecuteStep(IExecutionStep, Boolean ByRef) > 1cc0f280 8c16dcd2 72e149e8 1cc0f2d8 > System.Web.HttpApplication+PipelineStepManager.ResumeSteps(System.Exception) > 00000000 00000000 1cc0f2d8 1cc0f334 > System.Web.HttpApplication.BeginProcessRequestNotification(System.Web.HttpContext, > System.AsyncCallback) 0e99b5e8 8c16dcd2 72e149e8 > 1cc0f344 > System.Web.HttpRuntime.ProcessRequestNotificationPrivate(System.Web.Hosting.IIS7WorkerRequest, > System.Web.HttpContext) 29a6600c 8c16dcd2 72e149e8 > 1cc0f898 > System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr, > IntPtr, IntPtr, Int32) 00000000 00000009 00000000 > 00000000 > System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr, > IntPtr, IntPtr, Int32) 01a6119c 023d15a0 00000009 > 00000000 > webengine!W3_MGD_HANDLER::ProcessNotification+59 023d0ab8 > 023d15a0 00000000 1cc0f46c > webengine!W3_MGD_HANDLER::DoWork+235 00000080 00000000 > 1b7233bc 023d0b10 > webengine!RequestDoWork+2c3 00000080 00000000 1b7233bc > 023d0ab8 > webengine!CMgdEngHttpModule::OnExecuteRequestHandler+18 023d0ab8 > 023d0b10 023d0abc 1cc0f518 > iiscore!NOTIFICATION_CONTEXT::RequestDoWork+128 1b7233bc > 023d0ab8 00000000 023d0b10 > iiscore!NOTIFICATION_CONTEXT::CallModulesInternal+2ec 00000000 > 00000000 00000000 023d0ab8 > iiscore!NOTIFICATION_CONTEXT::CallModules+28 00000000 00000000 > 00000000 023d0ab8 > iiscore!W3_CONTEXT::DoStateRequestExecuteHandler+36 00000000 > 00000000 00000000 00000000 > iiscore!W3_CONTEXT::DoWork+d7 00000000 00000000 00000001 > 00000000 > iiscore!W3_MAIN_CONTEXT::ContinueNotificationLoop+1f 00000000 > 00000000 023d0ab8 1cc0f83c > iiscore!W3_MAIN_CONTEXT::ProcessIndicateCompletion+1f 00000000 > 023d15a0 767516b3 023d0ab8 > iiscore!W3_CONTEXT::IndicateCompletion+63 00000000 1cc0f8e8 > 1cc0f8ac 1cc0f860 > webengine!W3_MGD_HANDLER::IndicateCompletion+3b 00000000 > 1cc0f898 1cc0f880 01771671 > webengine!MgdIndicateCompletion+22 023d15a0 1cc0f8e8 > 8c16dcd2 00000000 > 0x01771671 29a6600c 29a65dc4 00000000 1cc0f91c > System.Web.Hosting.PipelineRuntime.ProcessRequestNotificationHelper(IntPtr, > IntPtr, IntPtr, Int32) 00000004 00000003 00000000 > 00000000 > System.Web.Hosting.PipelineRuntime.ProcessRequestNotification(IntPtr, > IntPtr, IntPtr, Int32) 00000000 023d15a0 00000003 > 00000004 > mscorwks!UM2MThunk_WrapperHelper+1f 1cc0fb30 00000010 > 01682388 016bee48 > mscorwks!UM2MThunk_WrapperWorker+60 1cc0facc 0250af40 > 0250af40 1cc0faa8 > mscorwks!UM2MThunk_Wrapper+14 1cc0facc 1cc0fa9c 72ef7e43 > c22ab3b9 > mscorwks!Thread::DoADCallBack+da 00000003 7308e32d > 1cc0facc c22ab211 > mscorwks!UM2MDoADCallBack+7c ffffffff 0250af40 1cc0fb30 > 00000010 > 0x01682372 00000000 023d15a0 00000003 00000004 > webengine!W3_MGD_HANDLER::ProcessNotification+59 7336d32c > 1cf27800 1cc0fba8 72e54404 > webengine!ProcessNotificationCallback+2d 023d15a0 c22ab2b9 > 72e53d1c 00040000 > mscorwks!UnManagedPerAppDomainTPCount::DispatchWorkItem+9a > 00000000 00000000 76751110 00000001 > mscorwks!ThreadpoolMgr::ExecuteWorkRequest+af c22ab505 > 00000000 72e53d69 0250c220 > mscorwks!ThreadpoolMgr::WorkerThreadStart+20b 00000000 > fffde000 77c70094 1cc0fbb8 > mscorwks!Thread::intermediateThreadProc+49 0250c220 1cc0ff7c > 77c0d80d 0250c220 > kernel32!BaseThreadInitThunk+e 0250c220 39fb7237 00000000 > 00000000 > ntdll!__RtlUserThreadStart+23 72f76e83 0250c220 ffffffff > 77c2e348 > ntdll!_RtlUserThreadStart+1b 72f76e83 0250c220 00000000 > 00000000 > > > > > > > > > > Exception Information > In W3WP__~1.DMP the assembly instruction at kernel32!RaiseException+58 > in C:\Windows\SysWOW64\kernel32.dll from Microsoft Corporation has > caused a CLR Exception on thread 34 with the following error > information: > > Type: System.IO.IOException > Message: read past eof > > > This exception originated from > Lucene.Net.QueryParsers.FastCharStream.Refill().
