An SUA-based application becomes unresponsive, and the Psxss.exe process uses 100 percent of CPU time on a Windows Vista-based or a Windows Server 2008-based computer

Article ID: 967484 – Last Review: March 3, 2009 – Revision: 1.0

An SUA-based application becomes unresponsive, and the Psxss.exe process uses 100 percent of CPU time on a Windows Vista-based or a Windows Server 2008-based computer

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SYMPTOMS

You are running an application that is based on Subsystem for UNIX-based Applications (SUA) on a Windows Vista-based or a Windows Server 2008-based computer. However, the application becomes unresponsive. Additionally, Task Manager shows that the Psxss.exe process consumes 100 percent of CPU time. This problem typically occurs when you start or stop the application.

CAUSE

This problem occurs because the structure of a process at the head of a process group is reused at the wrong time. This behavior causes an endless loop that the Psxss.exe process cannot exit.

RESOLUTION

Hotfix information

Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the “Hotfix Request” page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a Hotfix download available section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)

Note The Hotfix download available form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must have Subsystem for UNIX-based Applications installed on the computer.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Vista and Windows Server 2008 file information notes

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.
    Collapse this tableExpand this table
    Version Product Milestone Service branch
    6.0.6000.16xxx Windows Vista RTM GDR
    6.0.6000.20xxx Windows Vista RTM LDR
    6.0.6001.18xxx Windows Vista SP1 and Windows Server 2008 SP1 SP1 GDR
    6.0.6001.22xxx Windows Vista SP1 and Windows Server 2008 SP1 SP1 LDR
  • Service Pack 1 is integrated into Windows Server 2008. Therefore, RTM milestone files apply only to Windows Vista. RTM milestone files have a 6.0.0000.xxxxxx version number.
  • The .manifest files and the .mum files that are installed in each environment are listed separately in the Additional file information for Windows Server 2008 and for Windows Vista section. These files and their associated .cat (security catalog) files are critical to maintaining the state of the updated component. The .cat files are signed with a Microsoft digital signature. The attributes of these security files are not listed.
For all supported x86-based versions of Windows Server 2008 and Windows Vista
Collapse this tableExpand this table
File name File version File size Date Time Platform
Loginenv 6.0.6001.22373 14,848 10-Feb-2009 05:32 Not Applicable
Makedev 6.0.6001.22373 36,864 10-Feb-2009 05:32 Not Applicable
Posix.exe 6.0.6001.22373 80,896 10-Feb- 2009 05:32 x86
Posixsscom.dll 6.0.6001.22373 5,632 10-Feb- 2009 05:33 x86
Psxdll.dll 6.0.6001.22373 314,880 10-Feb- 2009 05:33 x86
Psxdllsvr.dll 6.0.6001.22373 364,032 10-Feb- 2009 05:33 x86
Psxdrv.sys 6.0.6001.22373 9,216 10-Feb- 2009 02:58 x86
Psxoffset 6.0.6001.22373 15,872 10-Feb-2009 05:32 Not Applicable
Psxrun.exe 6.0.6001.22373 40,960 10-Feb- 2009 05:32 x86
Psxss.exe 6.0.6001.22373 653,824 10-Feb- 2009 05:32 x86
Suacore-ppdlic.xrm-ms Not Applicable 2,993 10-Feb-2009 05:02 Not Applicable
Suares.dll 6.0.6001.22373 2,048 10-Feb- 2009 02:58 x86
Baseu.dnl Not Applicable 166 13-Dec-2007 20:27 Not Applicable
Baseu.prm Not Applicable 1,153 13-Dec-2007 20:27 Not Applicable
Desktop.ini Not Applicable 81 25-Feb-2009 03:16 Not Applicable
Disablesetuid.ini Not Applicable 92 13-Dec-2007 20:27 Not Applicable
Download.url Not Applicable 71 13-Dec-2007 20:27 Not Applicable
Enablesetuid.ini Not Applicable 92 13-Dec-2007 20:27 Not Applicable
Loginenv 6.0.6000.21007 15,872 10-Feb-2009 01:56 Not Applicable
Makedev 6.0.6000.21007 38,400 10-Feb-2009 01:56 Not Applicable
Posix.exe 6.0.6000.21007 76,288 10-Feb- 2009 01:56 x86
Posixsscom.dll 6.0.6000.21007 5,632 10-Feb- 2009 04:22 x86
Psxdll.dll 6.0.6000.21007 294,400 10-Feb- 2009 04:22 x86
Psxdllsvr.dll 6.0.6000.21007 343,552 10-Feb- 2009 04:22 x86
Psxdrv.sys 6.0.6000.21007 8,704 10-Feb- 2009 01:56 x86
Psxoffset 6.0.6000.21007 15,872 10-Feb-2009 01:56 Not Applicable
Psxrun.exe 6.0.6000.21007 40,960 10-Feb- 2009 01:56 x86
Psxss.exe 6.0.6000.21007 649,216 10-Feb- 2009 01:57 x86
Sua-ppdlic.xrm-ms Not Applicable 2,952 10-Feb-2009 03:58 Not Applicable
Suagc.exe 6.0.6000.21007 7,680 10-Feb- 2009 01:56 x86
Suares.dll 6.0.6000.21007 2,048 10-Feb- 2009 00:18 x86
Loginenv 6.0.6001.22373 14,848 10-Feb-2009 05:32 Not Applicable
Makedev 6.0.6001.22373 36,864 10-Feb-2009 05:32 Not Applicable
Posix.exe 6.0.6001.22373 80,896 10-Feb- 2009 05:32 x86
Posixsscom.dll 6.0.6001.22373 5,632 10-Feb- 2009 05:33 x86
Psxdll.dll 6.0.6001.22373 314,880 10-Feb- 2009 05:33 x86
Psxdllsvr.dll 6.0.6001.22373 364,032 10-Feb- 2009 05:33 x86
Psxdrv.sys 6.0.6001.22373 9,216 10-Feb- 2009 02:58 x86
Psxoffset 6.0.6001.22373 15,872 10-Feb-2009 05:32 Not Applicable
Psxrun.exe 6.0.6001.22373 40,960 10-Feb- 2009 05:32 x86
Psxss.exe 6.0.6001.22373 653,824 10-Feb- 2009 05:32 x86
Sua-ppdlic.xrm-ms Not Applicable 2,981 10-Feb-2009 05:02 Not Applicable
Suagc.exe 6.0.6001.22373 7,680 10-Feb- 2009 05:32 x86
Suares.dll 6.0.6001.22373 2,048 10-Feb- 2009 02:58 x86
For all supported x64-based versions of Windows Server 2008 and Windows Vista
Collapse this tableExpand this table
File name File version File size Date Time Platform
Loginenv 6.0.6001.22373 12,288 10-Feb-2009 05:53 Not Applicable
Makedev 6.0.6001.22373 41,984 10-Feb-2009 05:53 Not Applicable
Posix.exe 6.0.6001.22373 89,088 10-Feb- 2009 05:53 x64
Psxdll.dll 6.0.6001.22373 333,312 10-Feb- 2009 05:55 x64
Psxdllsvr.dll 6.0.6001.22373 382,464 10-Feb- 2009 05:55 x64
Psxdrv.sys 6.0.6001.22373 10,240 10-Feb- 2009 03:31 x64
Psxoffset 6.0.6001.22373 15,360 10-Feb-2009 05:53 Not Applicable
Psxrun.exe 6.0.6001.22373 44,544 10-Feb- 2009 05:53 x64
Psxss.exe 6.0.6001.22373 846,848 10-Feb- 2009 05:53 x64
Suacore-ppdlic.xrm-ms Not Applicable 2,993 10-Feb-2009 05:25 Not Applicable
Suares.dll 6.0.6001.22373 2,048 10-Feb- 2009 03:31 x64
Loginenv 6.0.6000.21007 12,288 10-Feb-2009 02:10 Not Applicable
Makedev 6.0.6000.21007 41,984 10-Feb-2009 02:10 Not Applicable
Posix.exe 6.0.6000.21007 83,968 10-Feb- 2009 02:11 x64
Psxdll.dll 6.0.6000.21007 311,808 10-Feb- 2009 04:32 x64
Psxdllsvr.dll 6.0.6000.21007 360,448 10-Feb- 2009 04:32 x64
Psxdrv.sys 6.0.6000.21007 9,728 10-Feb- 2009 02:10 x64
Psxoffset 6.0.6000.21007 15,360 10-Feb-2009 02:10 Not Applicable
Psxrun.exe 6.0.6000.21007 44,544 10-Feb- 2009 02:11 x64
Psxss.exe 6.0.6000.21007 838,656 10-Feb- 2009 02:11 x64
Sua-ppdlic.xrm-ms Not Applicable 2,952 10-Feb-2009 04:10 Not Applicable
Suagc.exe 6.0.6000.21007 8,704 10-Feb- 2009 02:11 x64
Suares.dll 6.0.6000.21007 2,048 10-Feb- 2009 00:20 x64
Loginenv 6.0.6001.22373 12,288 10-Feb-2009 05:53 Not Applicable
Makedev 6.0.6001.22373 41,984 10-Feb-2009 05:53 Not Applicable
Posix.exe 6.0.6001.22373 89,088 10-Feb- 2009 05:53 x64
Psxdll.dll 6.0.6001.22373 333,312 10-Feb- 2009 05:55 x64
Psxdllsvr.dll 6.0.6001.22373 382,464 10-Feb- 2009 05:55 x64
Psxdrv.sys 6.0.6001.22373 10,240 10-Feb- 2009 03:31 x64
Psxoffset 6.0.6001.22373 15,360 10-Feb-2009 05:53 Not Applicable
Psxrun.exe 6.0.6001.22373 44,544 10-Feb- 2009 05:53 x64
Psxss.exe 6.0.6001.22373 846,848 10-Feb- 2009 05:53 x64
Sua-ppdlic.xrm-ms Not Applicable 2,981 10-Feb-2009 05:25 Not Applicable
Suagc.exe 6.0.6001.22373 8,704 10-Feb- 2009 05:53 x64
Suares.dll 6.0.6001.22373 2,048 10-Feb- 2009 03:31 x64
Posixsscom.dll 6.0.6001.22373 5,632 10-Feb- 2009 05:33 x86
Psxdll.dll 6.0.6001.22373 333,824 10-Feb- 2009 05:33 x86
Psxdllsvr.dll 6.0.6001.22373 382,976 10-Feb- 2009 05:33 x86
Posixsscom.dll 6.0.6000.21007 5,632 10-Feb- 2009 04:22 x86
Psxdll.dll 6.0.6000.21007 312,320 10-Feb- 2009 04:22 x86
Psxdllsvr.dll 6.0.6000.21007 361,984 10-Feb- 2009 04:22 x86
Posixsscom.dll 6.0.6001.22373 5,632 10-Feb- 2009 05:33 x86
Psxdll.dll 6.0.6001.22373 333,824 10-Feb- 2009 05:33 x86
Psxdllsvr.dll 6.0.6001.22373 382,976 10-Feb- 2009 05:33 x86
For all supported Itanium-based versions of Windows Server 2008
Collapse this tableExpand this table
File name File version File size Date Time Platform
Desktop.ini Not Applicable 81 25-Feb-2009 03:28 Not Applicable
Loginenv 6.0.6001.22373 25,600 10- Feb-2009 04:37 Not Applicable
Makedev 6.0.6001.22373 49,152 10-Feb-2009 04:37 Not Applicable
Posix.exe 6.0.6001.22373 180,736 10-Feb-2009 04:37 IA- 64
Psxdll.dll 6.0.6001.22373 735,744 10-Feb-2009 04:38 IA- 64
Psxdllsvr.dll 6.0.6001.22373 761,344 10-Feb-2009 04:38 IA- 64
Psxdrv.sys 6.0.6001.22373 20,480 10-Feb-2009 02:11 IA- 64
Psxoffset 6.0.6001.22373 34,816 10-Feb-2009 04:37 Not Applicable
Psxrun.exe 6.0.6001.22373 75,776 10-Feb-2009 04:37 IA- 64
Psxss.exe 6.0.6001.22373 1,644,544 10-Feb-2009 04:38 IA-64
Sua-ppdlic.xrm- ms Not Applicable 2,981 10-Feb-2009 04:08 Not Applicable
Suagc.exe 6.0.6001.22373 16,384 10-Feb-2009 04:38 IA- 64
Suares.dll 6.0.6001.22373 2,048 10-Feb-2009 02:11 IA- 64
Posixsscom.dll 6.0.6001.22373 5,632 10-Feb- 2009 05:33 x86
Psxdll.dll 6.0.6001.22373 333,824 10-Feb- 2009 05:33 x86
Psxdllsvr.dll 6.0.6001.22373 382,976 10-Feb- 2009 05:33 x86

STATUS

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

MORE INFORMATION

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684  (/Feedback.aspx?kbNumber=824684/ ) Description of the standard terminology that is used to describe Microsoft software updates

Additional file information for Windows Server 2008

Additional files for all supported x86-based versions of Windows Server 2008 and Windows Vista

Collapse this tableExpand this table
File name Package_for_kb967484_client_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not Applicable
File size 1,396
Date (UTC) 10-Feb-2009
Time (UTC) 15:32
File name Package_for_kb967484_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not Applicable
File size 1,367
Date (UTC) 10-Feb-2009
Time (UTC) 15:32
File name Package_for_kb967484_client~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not Applicable
File size 1,712
Date (UTC) 10-Feb-2009
Time (UTC) 15:32
File name Package_for_kb967484_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not Applicable
File size 1,397
Date (UTC) 10-Feb-2009
Time (UTC) 15:32
File name Package_for_kb967484_sc~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not Applicable
File size 1,423
Date (UTC) 10-Feb-2009
Time (UTC) 15:32
File name Package_for_kb967484_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not Applicable
File size 1,396
Date (UTC) 10-Feb-2009
Time (UTC) 15:32
File name Package_for_kb967484_server~31bf3856ad364e35~x86~~6.0.1.0.mum
File version Not Applicable
File size 1,431
Date (UTC) 10-Feb-2009
Time (UTC) 15:32
File name X86_subsystem-for-unix-..d-applications-core_31bf3856ad364e35_6.0.6001.22373_none_f49e6bd4b9bf892b.manifest
File version Not Applicable
File size 67,927
Date (UTC) 10-Feb-2009
Time (UTC) 05:52
File name X86_subsystem-for-unix-based-applications_31bf3856ad364e35_6.0.6000.21007_none_729293df0be089a3.manifest
File version Not Applicable
File size 72,820
Date (UTC) 10-Feb-2009
Time (UTC) 04:34
File name X86_subsystem-for-unix-based-applications_31bf3856ad364e35_6.0.6001.22373_none_742949c70943458d.manifest
File version Not Applicable
File size 72,823
Date (UTC) 10-Feb-2009
Time (UTC) 05:52

Additional files for all supported x64-based versions of Windows Server 2008 and Windows Vista

Collapse this tableExpand this table
File name Amd64_subsystem-for-unix-..d-applications-core_31bf3856ad364e35_6.0.6001.22373_none_50bd0758721cfa61.manifest
File version Not Applicable
File size 67,427
Date (UTC) 10-Feb-2009
Time (UTC) 06:12
File name Amd64_subsystem-for-unix-based-applications_31bf3856ad364e35_6.0.6000.21007_none_ceb12f62c43dfad9.manifest
File version Not Applicable
File size 73,999
Date (UTC) 10-Feb-2009
Time (UTC) 04:44
File name Amd64_subsystem-for-unix-based-applications_31bf3856ad364e35_6.0.6001.22373_none_d047e54ac1a0b6c3.manifest
File version Not Applicable
File size 74,002
Date (UTC) 10-Feb-2009
Time (UTC) 06:12
File name Package_for_kb967484_client_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File version Not Applicable
File size 1,404
Date (UTC) 10-Feb-2009
Time (UTC) 15:32
File name Package_for_kb967484_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mum
File version Not Applicable
File size 1,375
Date (UTC) 10-Feb-2009
Time (UTC) 15:32
File name Package_for_kb967484_client~31bf3856ad364e35~amd64~~6.0.1.0.mum
File version Not Applicable
File size 1,722
Date (UTC) 10-Feb-2009
Time (UTC) 15:32
File name Package_for_kb967484_sc_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File version Not Applicable
File size 1,405
Date (UTC) 10-Feb-2009
Time (UTC) 15:32
File name Package_for_kb967484_sc~31bf3856ad364e35~amd64~~6.0.1.0.mum
File version Not Applicable
File size 1,431
Date (UTC) 10-Feb-2009
Time (UTC) 15:32
File name Package_for_kb967484_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File version Not Applicable
File size 1,404
Date (UTC) 10-Feb-2009
Time (UTC) 15:32
File name Package_for_kb967484_server~31bf3856ad364e35~amd64~~6.0.1.0.mum
File version Not Applicable
File size 1,439
Date (UTC) 10-Feb-2009
Time (UTC) 15:32
File name Wow64_subsystem-for-unix-..d-applications-core_31bf3856ad364e35_6.0.6001.22373_none_5b11b1aaa67dbc5c.manifest
File version Not Applicable
File size 42,600
Date (UTC) 10-Feb-2009
Time (UTC) 05:43
File name Wow64_subsystem-for-unix-based-applications_31bf3856ad364e35_6.0.6000.21007_none_d905d9b4f89ebcd4.manifest
File version Not Applicable
File size 42,078
Date (UTC) 10-Feb-2009
Time (UTC) 04:30
File name Wow64_subsystem-for-unix-based-applications_31bf3856ad364e35_6.0.6001.22373_none_da9c8f9cf60178be.manifest
File version Not Applicable
File size 42,081
Date (UTC) 10-Feb-2009
Time (UTC) 05:45

Additional files for all supported Itanium-based versions of Windows Server 2008

Collapse this tableExpand this table
File name Ia64_subsystem-for-unix-based-applications_31bf3856ad364e35_6.0.6001.22373_none_742aedbd09414e89.manifest
File version Not Applicable
File size 73,980
Date (UTC) 10-Feb-2009
Time (UTC) 04:54
File name Package_for_kb967484_server_0~31bf3856ad364e35~ia64~~6.0.1.0.mum
File version Not Applicable
File size 1,400
Date (UTC) 10-Feb-2009
Time (UTC) 15:32
File name Package_for_kb967484_server~31bf3856ad364e35~ia64~~6.0.1.0.mum
File version Not Applicable
File size 1,434
Date (UTC) 10-Feb-2009
Time (UTC) 15:32
File name Wow64_subsystem-for-unix-based-applications_31bf3856ad364e35_6.0.6001.22373_none_da9c8f9cf60178be.manifest
File version Not Applicable
File size 42,081
Date (UTC) 10-Feb-2009
Time (UTC) 05:45

APPLIES TO
  • Windows Vista Ultimate
  • Windows Vista Enterprise
  • Windows Vista Ultimate 64-bit Edition
  • Windows Vista Enterprise 64-bit Edition
  • Windows Vista Service Pack 1
  • Windows Server 2008 Standard
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Datacenter without Hyper-V
  • Windows Server 2008 Enterprise without Hyper-V
  • Windows Server 2008 for Itanium-Based Systems
  • Windows Server 2008 Standard without Hyper-V
Keywords: 
kbexpertiseinter kbautohotfix kbsurveynew kbbug kbfix kbhotfixserver kbqfe KB967484

 

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