NTFS and DISK Synchronous Request Never Completes

 Last reviewed: November 24, 1997
Article ID: Q162466
The information in this article applies to:
  • Microsoft Windows NT Workstation version 4.0
  • Microsoft Windows NT Server version 4.0

SYMPTOMS

When NTFS and DISK use a synchronous request to perform an I/O control within a page fault, it never completes.

CAUSE

This problem occurs as a result of the NTFS dismount code. NTFS is doing a IOCTL_DISK_IS_WRITABLE I/O control within a page fault. Both NTFS and DISK are doing this, using a synchronous request which never completes because APC are disabled to do the page fault. This problem may affect removable media dismounts.

STATUS

Microsoft has confirmed this to be a problem in Windows NT version 4.0. A supported fix is now available, but has not been fully regression- tested and should be applied only to systems experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft recommends that you wait for the next Service Pack that contains this fix. Contact Microsoft Technical Support for more information.

Additional query words: prodnt file system
Keywords : kbbug4.00 ntdriver kbenv
Version : WINNT:4.0
Platform : winnt
Issue type : kbbug
Solution Type : kbfix

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Last reviewed: November 24, 1997
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