Microsoft KB Archive/825076

= The ASP.NET worker process stops responding because of a corrupted overlapped structure =

Article ID: 825076

Article Last Modified on 10/26/2005

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APPLIES TO


 * Microsoft .NET Framework 1.0 Service Pack 2

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SYMPTOMS
The Microsoft ASP.NET worker process stops responding, or &quot;hangs,&quot; and when you use a debugger such as the Windbg debugger to examine a user dump that was taken at the moment that the process stopped responding, many of the threads appear to be waiting on a critical section as shown in the following stack: ChildEBP RetAddr Args to Child 1f01fd8c 77f85c55 00001230 00000000 00000000 ntdll!NtWaitForSingleObject+0xb 1f01fe00 77f85bd1 00141200 791b1844 00141288 ntdll!RtlpWaitForCriticalSection+0x9e 1f01fe08 791b1844 00141288 1f01fe2c 791c526e ntdll!RtlEnterCriticalSection+0x46 1f01fe14 791c526e 00141288 00000001 16c40848 mscorsvr!EE_EnterCriticalSection+0xc 1f01fe2c 791d8243 77e885e0 16c40848 77e876a1 mscorsvr!BaseCrst::Enter+0x98 1f01fe44 792077f5 00000000 00000001 16c40848 mscorsvr!ThreadStore::LockThreadStore+0xaa 1f01fe58 791c5c8e 16c40848 00000000 00000000 mscorsvr!ThreadStore::AddThread+0xd 1f01fe80 791cfb76 169f9db0 1f01ff40 791cfc92 mscorsvr!SetupThread+0x103 1f01fe8c 791cfc92 00000000 169f9db0 169f9db0 mscorsvr!SetupThreadPoolThread+0x15 1f01ff40 791cfc78 1476e808 00000001 00000001 mscorsvr!AddTimerCallbackEx+0x16 1f01ff54 791cfc4f 1476e808 00000001 791cfc40 mscorsvr!AddTimerCallback+0x10 1f01ff68 791c8712 169f9db0 14798ef8 793ac240 mscorsvr!ThreadpoolMgr::AsyncTimerCallbackCompletion+0xf 1f01ff98 79208ef6 14798ef8 0005ab25 1395dcff mscorsvr!ThreadpoolMgr::ExecuteWorkRequest+0x42 1f01ffb4 77e887dd 00000000 0005ab25 1395dcff mscorsvr!ThreadpoolMgr::WorkerThreadStart+0xc6 1f01ffec 00000000 79208e96 00000000 00000000 kernel32!BaseThreadStart+0x52 The thread that owns the critical section has the following stack: ChildEBP RetAddr Args to Child 1a6ce64c 77e87ab7 00000001 1a6ce674 00000001 ntdll!NtWaitForMultipleObjects+0xb 1a6ce69c 77e8a31d 1a6ce674 00000001 00000000 kernel32!WaitForMultipleObjectsEx+0xea 1a6ce6b4 7922c01b 00000001 1a6ce7d8 00000000 kernel32!WaitForMultipleObjects+0x17 1a6ce8ec 7922bf00 00000001 160efe18 00000014 mscorsvr!Thread::SysSuspendForGC+0x189 1a6ce904 7922f72a 00000001 160efe18 00000014 mscorsvr!GCHeap::SuspendEE+0xd5 1a6ce918 791b3cd6 00000000 00000000 160efe18 mscorsvr!GCHeap::GarbageCollectGeneration+0xc 1a6ce940 791bae02 160efe18 00000014 79b50e24 mscorsvr!gc_heap::allocate_more_space+0x132 1a6ce964 791bad6f 160efe18 00000014 00000002 mscorsvr!GCHeap::Alloc+0x69 1a6ce978 791d0746 00000014 00000000 00040000 mscorsvr!Alloc+0x3a 1a6ce998 791d0797 79b50e24 1a6ceab8 09441894 mscorsvr!FastAllocateObject+0x25

This thread is waiting for all the threads to suspend work to start the GC but it hangs there forever (until the process recycles) A thread exists that has not enabled garbage collection and it has the following stack: ChildEBP RetAddr Args to Child 165bf7ac 77ebb04d d0000144 00000004 00000000 ntdll!ZwRaiseHardError+0xb 165bfac8 77ea8e90 165bfaf0 77ea18a5 165bfaf8 kernel32!UnhandledExceptionFilter+0x1d6 165bffec 00000000 79200971 00000000 00000000 kernel32!BaseThreadStart+0x65 The exception stack trace looks like the following: ChildEBP RetAddr Args to Child 165bfea4 791c333a ffffffff 165bff6c 792f395b mscorsvr!ArrayList::GetPtr+0xf 165bfeb0 792f395b 00000000 77e873b2 793ac43c mscorsvr!SystemDomain::GetAppDomainAtId+0x12 165bff6c 792f3caf 00000000 00000000 16ba3fa0 mscorsvr!BindIoCompletionCallbackStubEx+0x47 165bff84 792009dd 00000000 00000000 16ba3fa0 mscorsvr!BindIoCompletionCallbackStub+0x13 165bffb4 77e887dd 00000000 00000003 00000000 mscorsvr!ThreadpoolMgr::CompletionPortThreadStart+0x93 165bffec 00000000 79200971 00000000 00000000 kernel32!BaseThreadStart+0x52 The ASP.NET worker process stops responding because the completion port receives a corrupted overlapped structure.



RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Microsoft .NET Framework service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

  Date         Time   Version       Size       File name          Platform 12-Aug-2003 16:17  1.0.3705.449    200,704  Aspnet_isapi.dll   x86 12-Aug-2003 16:11                    4,169  Aspnet_perf.h   12-Aug-2003  16:18                  513,302  Aspnet_perf.ini 12-Aug-2003 16:18                  510,714  Aspnet_perf2.ini 12-Aug-2003 16:18  1.0.3705.449     24,576  Aspnet_regiis.exe  x86 12-Aug-2003 16:18  1.0.3705.449     28,672  Aspnet_wp.exe      x86 12-Aug-2003 15:40  1.0.3705.449     69,632  Corperfmonext.dll  x86 12-Aug-2003 15:38  1.0.3705.449    303,104  Mscorjit.dll       x86 13-Aug-2003 00:09  1.0.3705.449  1,953,792  Mscorlib.dll       x86 12-Aug-2003 15:31                   10,284  Mscorlib.ldo 12-Aug-2003 15:39  1.0.3705.449  2,269,184  Mscorsvr.dll       x86 12-Aug-2003 15:39  1.0.3705.449  2,269,184  Mscorwks.dll       x86 01-Aug-2002 21:38                       15  Smartnav.htm 29-Jul-2003 20:30                    8,728  Smartnav.js   13-Aug-2003  00:07  1.0.3705.449  1,196,032  System.web.dll     x86 13-Aug-2003 00:07  1.0.3705.449     32,768  Tlbimp.exe         x86



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

Keywords: kbbug kbfix kbqfe kbnetframe100presp3fix kbhotfixserver KB825076

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