Heavy File I/O Causes Windows NT Server to Hang

Last reviewed: July 20, 1998
Article ID: Q189330

The information in this article applies to:

Microsoft Windows NT Server version 4.0
Microsoft Windows NT Server, Enterprise Edition version 4.0 - Microsoft Cluster Server

SYMPTOMS

The system stops responding (hangs) during heavy file I/O, such as multiple file copy sessions. The only option is to restart the computer.

MORE INFORMATION

Examination of the System process threads reveals the following cache manager related call stack:

   ChildEBP RetAddr  Args to Child
   f4047c04 801181ec 00000001 ntkrnlmp!KiSwapThread+0x1b1
   f4047c28 80101ebd f4047c78 ntkrnlmp!KeWaitForSingleObject+0x1b8
   f4047c8c 80219a55 80ce9f48 ntkrnlmp!CcCanIWrite+0x175
   f4047d30 8016f2b8 80ce9f48 Ntfs!NtfsCopyWriteA+0x50
   f4047de0 8013fa99 00000090 ntkrnlmp!NtWriteFile+0x3d2
   f4047de0 e12ef000 00000090 ntkrnlmp!KiSystemService+0xc9
   00000000 00000000 00000000 +0xe12ef000

Also, examination of the system locks will reveal this same thread.

STATUS

Microsoft has confirmed this to be a problem in Windows NT version 4.0. We are researching this problem and will post additional information here in the Microsoft Knowledge Base as it becomes available.

Keywords          : kbbug4.00 kbfix4.00
Version           : WinNT:4.0
Platform          : winnt
Issue type        : kbbug
Solution Type     : kbfix

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