1.2 KiB
1.2 KiB
ETW event names cannot differ only by a "Start" or "Stop" suffix
Scope
Edge
Version Introduced
4.6
Version Reverted
4.6.2
Source Analyzer Status
NotPlanned
Change Description
In the .NET Framework 4.6 and 4.6.1, the runtime throws an xref:System.ArgumentException when two Event Tracing for Windows (ETW) event names differ only by a "Start" or "Stop" suffix (as when one event is named LogUser and another is named LogUserStart). In this case, the runtime cannot construct the event source, which cannot emit any logging.
- Quirked // Uses some mechanism to turn the feature on or off, usually using runtime targeting, AppContext or config files. Needs to be turned on automatically for some situations.
- Build-time break // Causes a break if attempted to recompile
Recommended Action
To prevent the exception, ensure that no two event names differ only by a "Start" or "Stop" suffix.
This requirement is removed starting with the .NET Framework 4.6.2; the runtime can disambiguate event names that differ only by the "Start" and "Stop" suffix.
Affected APIs
- Not detectable via API analysis
Category
Core