Microsoft KB Archive/936050

= Windows Server 2003 R2 may crash when concurrent open and close operations occur on a file handle in SUA =

Article ID: 936050

Article Last Modified on 11/2/2007

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APPLIES TO


 * Microsoft Windows Server 2003 R2 Datacenter Edition (32-Bit x86)
 * Microsoft Windows Server 2003 R2 Datacenter x64 Edition
 * Microsoft Windows Server 2003 R2 Enterprise Edition (32-Bit x86)
 * Microsoft Windows Server 2003 R2 Enterprise x64 Edition
 * Microsoft Windows Server 2003 R2 Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003 R2 Standard x64 Edition

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SYMPTOMS
When concurrent open and close operations occur on a file handle in Subsystem for UNIX-based Applications (SUA), Windows Server 2003 R2 may crash.



CAUSE
This problem occurs because a race condition is introduced in the Psxdrv.sys file when concurrent open and close operations occur on a file handle.



RESOLUTION
To resolve this problem, apply the hotfix rollup package that is described in Microsoft Knowledge Base article 936051. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

936051 Hotfix rollup 936051 is available for Subsystem for UNIX-based Applications in Windows Server 2003 R2



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

Keywords: kbexpertisebeginner kbpubtypekc kbqfe kbhotfixserver KB936050

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