Getting PAGE_FAULT_IN_NONPAGED_AREA System Crash

A couple of times a week I get a Blue Screen of Death System Crash - PAGE_FAULT_IN_NONPAGED_AREA.

 

Here is what I know so far:

  • No hardware problems - I have run complete diagnostics from manufacturer.
  • Crashes appear random, sometimes when no applications are loaded and I am away from machine.
  • Running current version of NIS, fully updated.
  • Windows XP SP 3, fully patched and up to date.
  • Ran Dell Computer's Crash Analysis Tool - this points to NavEx15.sys (This tool is known to be unreliable sometimes so I don't put much stock in its findings)
  • SYMEVENT.SYS is version 11.6.0.24
  • I ran Debugging Tools for Windows to analyze two recent memory dumps, both have same result:

Microsoft (R) Windows Debugger Version 6.11.0001.404 X86
Copyright (c) Microsoft Corporation. All rights reserved.


Loading Dump File [c:\windows\minidump\Mini042909-02.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: srv*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is: c:\i386
Windows XP Kernel Version 2600 (Service Pack 3) MP (2 procs) Free x86 compatible
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 2600.xpsp_sp3_gdr.090206-1234
Machine Name:
Kernel base = 0x804d7000 PsLoadedModuleList = 0x8055d720
Debug session time: Wed Apr 29 12:34:37.328 2009 (GMT-5)
System Uptime: 0 days 0:16:58.032
Loading Kernel Symbols
...............................................................
................................................................
................................................................
.....
Loading User Symbols
Loading unloaded module list
..............................................
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 10000050, {eaf33000, 0, 8a74e3de, 1}


Could not read faulting driver name
Unable to load image SYMEVENT.SYS, Win32 error 0n2
*** WARNING: Unable to verify timestamp for SYMEVENT.SYS
*** ERROR: Module load completed but symbols could not be loaded for SYMEVENT.SYS
Probably caused by : SYMEVENT.SYS ( SYMEVENT+14479 )

Followup: MachineOwner
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Does anyone have a solution?

 

Is there any additional information I should gather?