ERROR_LOG_READ_CONTEXT_INVALID - 6606 (0x19CE)
Log service encountered an attempt read from a marshalling area with an invalid read context.
Updated: Feb 21, 2026
Technical Meaning
The error ERROR_LOG_READ_CONTEXT_INVALID (6606, 0x19CE) indicates that a Windows API function encountered an invalid read context during the marshalling process. Marshalling is the mechanism used to transfer data between different components or processes in a way that preserves their structure and type information.
Error Details
This error typically occurs when attempting to read from a marshalled buffer, but the provided read context is not valid for the current operation. A read context is a set of parameters required by the API to correctly interpret and process the data being transferred.
Usage Context
The ERROR_LOG_READ_CONTEXT_INVALID can be encountered in various scenarios where marshalling is involved, such as when reading log data or transferring structured information between processes or components within the Windows operating system.
Developer Interpretation
When this error occurs, it suggests that there was a mismatch between the expected read context and the actual context provided. This could be due to incorrect parameter values, invalid object types, or other issues related to marshalling operations.
Related Errors
ERROR_INVALID_PARAMETER(1403)ERROR_MARSHALLING_FAILED(6598)ERROR_UNMARSHALLING_FAILED(6602)
FAQ
Q: What does the ERROR_LOG_READ_CONTEXT_INVALID error mean?
A: It indicates that an invalid read context was encountered during marshalling, leading to a failure in reading data.
Q: How can I troubleshoot this issue?
A: Review the operation context and validate parameters to ensure they are correct for the marshalling process.
Summary
The ERROR_LOG_READ_CONTEXT_INVALID error (6606) is indicative of an invalid read context during marshalling operations. Developers should review their parameter usage and ensure that all components involved in data transfer are correctly configured.