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Q154854: Trap 0xA in AtalkBPFreeBlock

Article: Q154854
Product(s): Microsoft Windows NT
Version(s): winnt:3.51
Operating System(s): 
Keyword(s): 
Last Modified: 10-AUG-2001

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The information in this article applies to:

- Microsoft Windows NT Server version 3.51 
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SYMPTOMS
========

Windows NT 3.51 systems running Services for Macintosh may experience Trap 0xA's
in AtalkBPFreeBlock with the following stack trace:

Callee-SP Return-RA  Call Site

807b2580 8071e500 : ntkrnlmp!DbgBreakPoint
807b2580 806ddccc : ntkrnlmp!KeBugCheckEx+0x2bc
807b2870 fb35c918 : ntkrnlmp!KiModifyException+0xe4
807b2ac8 fb35c864 : sfmatalk!AtalkBPFreeBlock+0x30
807b2b10 fb35e58c : sfmatalk!AtalkBPAllocBlock+0x388
807b2bb0 fb35de70 : sfmatalk!AtalkDdpTransmit+0x354
807b2c60 fb380118 : sfmatalk!AtalkDdpSend+0x20c
807b2cd0 fb37e474 : sfmatalk!atalkAtpTransmitReq+0x164
807b2d40 fb35b860 : sfmatalk!atalkAtpReqTimer+0x1f4
807b2d88 80712ec4 : sfmatalk!atalkTimerDpcRoutine+0xf0
807b2db0 80703df4 : ntkrnlmp!KiTimerListExpire+0x158
807b2f00 806f61a8 : ntkrnlmp!KiTimerExpiration+0xe4
807b2f68 806dc2c8 : ntkrnlmp!KiRetireDpcList+0x94
807b2f80 00000000 : ntkrnlmp!KiDispatchInterrupt+0x6c
0: kd> dd kibugcheckdata l5
8073b340  0000000a 00000010 00000002 00000000
8073b350  fb35c918

CAUSE
=====

A null pointer was being "freed."

STATUS
======

Microsoft has confirmed this to be a problem in Windows NT version 3.51. This
problem was corrected in the latest Windows NT 3.51 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: prodnt 3.51

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Keywords          :  
Technology        : kbWinNTsearch kbWinNT351search kbWinNTSsearch kbWinNTS351 kbWinNTS351search
Version           : winnt:3.51

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