Windows Event ID 8224 – Kernel-EventTracing: ETW Session Start Failure

Start by examining current ETW sessions and system limits to identify resource constraints.

1. Open Command Prompt as Administrator
2. List active ETW sessions:
   

   logman query -ets

3. Check ETW session limits in registry:
   

   Get-ItemProperty -Path "HKLM\SYSTEM\CurrentControlSet\Control\WMI" -Name "EtwMaxLoggers"

4. View detailed session information:
   

   wevtutil gl Microsoft-Windows-Kernel-EventTracing/Analytic

5. If approaching limits, stop unnecessary sessions:
   

   logman stop "SessionName" -ets

Examine the specific Event ID 8224 details to understand the root cause.

1. Open Event Viewer → Windows Logs → System
2. Filter for Event ID 8224:
   

   Get-WinEvent -FilterHashtable @{LogName='System'; Id=8224} -MaxEvents 10 | Format-List *

3. Extract error codes and session details:
   

   Get-WinEvent -FilterHashtable @{LogName='System'; Id=8224} | ForEach-Object { $_.Message }

4. Cross-reference error codes with Win32 error definitions:
   

   net helpmsg [ErrorCode]

5. Check for patterns in timing and frequency:
   

   Get-WinEvent -FilterHashtable @{LogName='System'; Id=8224; StartTime=(Get-Date).AddDays(-7)} | Group-Object TimeCreated.Hour

Modify system configuration to provide more resources for ETW operations.

1. Backup current ETW configuration:
   

   reg export "HKLM\SYSTEM\CurrentControlSet\Control\WMI" C:\ETW_backup.reg

2. Increase maximum ETW loggers (requires restart):
   

   Set-ItemProperty -Path "HKLM\SYSTEM\CurrentControlSet\Control\WMI" -Name "EtwMaxLoggers" -Value 128 -Type DWord

3. Increase ETW buffer memory limits:
   

   Set-ItemProperty -Path "HKLM\SYSTEM\CurrentControlSet\Control\WMI" -Name "EtwMaxKernelBuffer" -Value 2048 -Type DWord

4. Configure automatic ETW cleanup:
   

   Set-ItemProperty -Path "HKLM\SYSTEM\CurrentControlSet\Control\WMI\Autologger" -Name "BufferSize" -Value 1024 -Type DWord

5. Restart the system to apply changes
6. Verify new limits:
   

   Get-ItemProperty -Path "HKLM\SYSTEM\CurrentControlSet\Control\WMI" | Select-Object Etw*

Perform comprehensive system resource analysis to identify underlying constraints.

1. Check available system memory:
   

   Get-CimInstance -ClassName Win32_OperatingSystem | Select-Object TotalVisibleMemorySize, FreePhysicalMemory

2. Analyze memory usage by process:
   

   Get-Process | Sort-Object WorkingSet -Descending | Select-Object -First 10 Name, WorkingSet, PagedMemorySize

3. Check kernel memory pools:
   

   Get-Counter "\Memory\Pool Nonpaged Bytes", "\Memory\Pool Paged Bytes"

4. Monitor ETW-related performance counters:
   

   Get-Counter "\ETW Sessions(*)\*" -ErrorAction SilentlyContinue

5. Check for memory leaks in ETW consumers:
   

   Get-WmiObject -Class Win32_Process | Where-Object {$_.Name -like "*log*" -or $_.Name -like "*trace*"} | Select-Object Name, WorkingSetSize

6. Review system event logs for memory-related errors:
   

   Get-WinEvent -FilterHashtable @{LogName='System'; Level=2,3} -MaxEvents 50 | Where-Object {$_.Message -like "*memory*"}

Implement comprehensive ETW management and troubleshooting procedures.

1. Enumerate all ETW providers:
   

   logman query providers | Out-File C:\ETW_providers.txt

2. Check provider registration status:
   

   Get-WinEvent -ListProvider * | Where-Object {$_.Name -like "*kernel*"} | Select-Object Name, Id

3. Create diagnostic ETW session with minimal resources:
   

   logman create trace "DiagnosticTrace" -p "Microsoft-Windows-Kernel-EventTracing" -o C:\DiagTrace.etl -bs 64 -nb 2 2

4. Monitor ETW session health:
   

   $sessions = logman query -ets
   foreach($session in $sessions) { Write-Host "Session: $session" }

5. Implement automated ETW cleanup script:
   

   $oldSessions = logman query -ets | Where-Object {$_ -like "*temp*" -or $_ -like "*debug*"}
   foreach($session in $oldSessions) { logman stop $session -ets }

6. Configure ETW session monitoring via scheduled task:
   

   Register-ScheduledTask -TaskName "ETW-Monitor" -Trigger (New-ScheduledTaskTrigger -Daily -At "02:00") -Action (New-ScheduledTaskAction -Execute "PowerShell.exe" -Argument "-File C:\Scripts\ETW-Cleanup.ps1")