Event ID 1019 — Subsystem for UNIX-based Applications Functionality

Updated: November 14, 2007

Applies To: Windows Server 2008


Subsystem for UNIX-based Applications (SUA) Functionality is a measure of how the SUA send-and-receive utility, Psxss.exe, is functioning. When Psxss.exe is operating normally, SUA is able to accept user commands, and port applications over to Windows-based operating systems from UNIX-based operating systems.

Event Details

Product: Windows Subsystem for UNIX-based Applications
ID: 1019
Source: Microsoft-Windows-SUA-Psxss
Version: 6.0
Symbolic Name: PSX_HARD_ERROR
Message: Subsystem for UNIX-based Applications detected a hard error. The exception vector contains: %1


Debug POSIX application to find root cause of this error

Subsystem for UNIX-based Applications has experienced a Hard Error, which will be delivered as a SIGEXCEPT signal to the relevant POSIX process. The process can handle the signal but might not be able to continue working after handling it.

This issue requires that the application in which the failure occurred be debugged. More information about debugging your code by using the Microsoft Visual Studio Debugger Extension is available in the Help included with the Utilities and Software Development Kit (SDK) for Subsystem for UNIX-based Applications download package, available from the Microsoft Web site (http://go.microsoft.com/fwlink/?linkid=67558). Specifically, you can find information about debugging code in the Help for Porting Applications to Subsystem for UNIX-based Applications (PortApps.chm).


Verify that the Subsystem for UNIX-based Applications (SUA) Psxss.exe utility is functioning, first by viewing Psxss.exe in the Windows Task Manager, and then by using an SUA application that you have developed or are porting to Windows to transmit data over the network.

To verify that Psxss.exe is running:

  1. Open Windows Task Manager by pressing CTRL+ALT+DEL, and then clicking Task Manager.
  2. On the Processes tab, select the Show processes from all users check box.
  3. Verify that PSXSS.exe is running.

Next, use an application on which you are working in SUA, or that you are porting to Windows by using SUA, to send some data over the network. For example, attempt to use your application to modify files or documents in another location on the network. If PSXSS.exe is functioning properly, and is active in the list of processes in Task Manager, sending SUA application data over the network should succeed.

Related Management Information

Subsystem for UNIX-based Applications Functionality

Subsystem for UNIX-based Applications

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