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Q247329: Process Generates Stop 0x50 Error Message in ExpCopyProcessInfo

Article: Q247329
Product(s): Microsoft Windows NT
Version(s): winnt:4.0,4.0 SP1,4.0 SP2,4.0 SP3,4.0 SP4,4.0 SP5,4.0 SP6,4.0 SP6a
Operating System(s): 
Keyword(s): kbenv kberrmsg kbWinNT400PreSP7Fixkbfixlist
Last Modified: 08-MAY-2002

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The information in this article applies to:

- Microsoft Windows NT Server versions 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3, 4.0 SP4, 4.0 SP5, 4.0 SP6, 4.0 SP6a 
- Microsoft Windows NT Server, Enterprise Edition versions 4.0, 4.0 SP4, 4.0 SP5, 4.0 SP6, 4.0 SP6a 
- Microsoft Windows NT Workstation versions 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3, 4.0 SP4, 4.0 SP5, 4.0 SP6, 4.0 SP6a 
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SYMPTOMS
========

In a very rare race condition, an exiting process can cause your computer to
generate a Stop 0x50 error message (bugcheck) with the following stack trace:

2: kd> !kb
!kb cannot get version packet on a crash dumpcannot get version packet on a crash
dumpChildEBP Ret
f68f4bb8 801545da eb7363d8 ba1a4e08 00007000 ntkrnlmp!ExpCopyProcessInfo+0x11
f68f4c38 8015b5d1 00161008 00007000 f68f4ec8
ntkrnlmp!ExpGetProcessInformation+0x156
f68f4eec 80140be9 00000005 00161008 00007000
ntkrnlmp!NtQuerySystemInformation+0x725
f68f4eec 0012fab0 00000005 00161008 00007000 ntkrnlmp!KiSystemService+0xc9
f68f4bac b7d16fec eb7363d8 b7d16e58 801545da +0x12fab0

2: kd> !trap f68f4b3c
!trap f68f4b3c
eax=bbd26fb0 ebx=b7d16e58 ecx=00006458 edx=0000000f esi=eb7363d8 edi=ba1a4e08
eip=8015c6e5 esp=f68f4bb0 ebp=f68f4c38 iopl=0 nv up ei ng nz na pe nc
vip=0 vif=0
cs=0008 ss=0010 ds=0023 es=0023 fs=0030 gs=0000 efl=00010282
ErrCode = 00000000
8015c6e5 8b4014 mov eax,[eax+0x14]

RESOLUTION
==========

A supported fix is now available from Microsoft, but it is only intended to
correct the problem described in this article and should be applied only to
systems experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the
fix. For a complete list of Microsoft Product Support Services phone numbers and
information on support costs, please go to the following address on the World
Wide Web:

  http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

NOTE: In special cases, charges that are normally incurred for support calls may
be canceled, if a Microsoft Support Professional determines that a specific
update will resolve your problem. Normal 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 fix should have the following file attributes or
later:

  Date         Time          Size            File name      Platform
  ------------------------------------------------------------------
  11/11/1999   1:08 pm       952,256         Ntkrnlmp.exe   x86
  11/11/1999   1:07 pm       932,032         Ntoskrnl.exe   x86

  11/11/1999   1:05 pm       1,404,032       Ntkrnlmp.exe   Alpha
  11/11/1999   1:05 pm       1,375,808       Ntoskrnl.exe   Alpha



STATUS
======

Microsoft has confirmed this to be a problem in Windows NT 4.0.

Additional query words: patrolperf.exe ptntreg.exe compaq bmc

======================================================================
Keywords          : kbenv kberrmsg kbWinNT400PreSP7Fix kbfixlist
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbWinNTW400sp5 kbWinNTW400sp4 kbWinNTW400sp3 kbWinNTW400sp2 kbWinNTW400sp1 kbWinNTSsearch kbWinNTSEntSearch kbWinNTSEnt400sp6 kbWinNTSEnt400sp5 kbWinNTSEnt400sp4 kbWinNTSEnt400 kbWinNTS400sp6 kbWinNTS400sp5 kbWinNTS400sp4 kbWinNTS400sp3 kbWinNTS400sp2 kbWinNTS400sp1 kbWinNTS400search kbWinNTS400 kbWinNTW400sp6 kbWinNTSEnt400SP6a kbWinNTW400SP6a
Version           : winnt:4.0,4.0 SP1,4.0 SP2,4.0 SP3,4.0 SP4,4.0 SP5,4.0 SP6,4.0 SP6a
Hardware          : ALPHA x86
Issue type        : kbprb
Solution Type     : kbfix

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