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DBG_COMMAND_EXCEPTION
The debugger command channel failed
This status belongs to debugger control and communication rather than to the application exception being investigated. It indicates that processing a debugger command encountered an exceptional condition, such as malformed command data, invalid state, or failure while exchanging control information with the target.
Continuing the target without restoring debugger state can lose events or leave the debuggee suspended. The command payload, debugger state, and outstanding event must be captured together.
What to inspect
- Log the exact command, target process and thread, and current outstanding debug event.
- Validate command framing, parameter sizes, and architecture-specific context structures.
- Check whether the target exited or detached while the command was being processed.
- Re-establish debugger state before issuing further continue or context-modification operations.
References
- Microsoft Open Specifications: NTSTATUS values
- Microsoft: writing the debugger main loop
- Microsoft: WaitForDebugEvent
- Wine source: debugger API implementation
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