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Q167129: STOP 0x7A or System Lockup in NTBACKUP with MINIQIC

Article: Q167129
Product(s): Microsoft Windows NT
Version(s): winnt:4.0
Operating System(s): 
Keyword(s): kbbuglist kbfixlist
Last Modified: 09-AUG-2001

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The information in this article applies to:

- Microsoft Windows NT Workstation version 4.0 
- Microsoft Windows NT Server version 4.0 
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SYMPTOMS
========

After selecting Hardware Setup in NTBACKUP, and pressing the OK button when the
MINIQIC device is shown, the SCSI bus may stop responding. The system will send
a SCSI RESET numerous times before it gives up. If the boot device happens to be
on the same SCSI bus, the system will blue screen with the following error
message:

  STOP 0x0000007A KERNEL_DATA_INPAGE_ERROR

This problem seems to occur with every MINIQIC device. This only happens when a
MINIQIC device is attached to a SCSI host adapter controlled by Aic78xx.sys.


CAUSE
=====

A bit was not getting reset during a PCI Master Abort condition, causing all
SCSIPORT requests to not make it to the SCSI bus.


STATUS
======

Microsoft has confirmed this to be a problem in Windows NT version 4.0. This
problem was corrected in the latest Microsoft Windows NT 4.0 U.S. Service Pack.
For information on obtaining the service pack, query on the following word in
the Microsoft Knowledge Base (without the spaces):

  S E R V P A C K


Additional query words:

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Keywords          :  kbbuglist kbfixlist
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbWinNTSsearch kbWinNTS400search kbWinNTS400
Version           : winnt:4.0
Hardware          : x86
Issue type        : kbbug

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