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STATUS_PARAMETER_QUOTA_EXCEEDED
Measure the offending parameter after decoding its real item and byte counts
STATUS_PARAMETER_QUOTA_EXCEEDED describes excessive data in one of a function's parameters. The important distinction from STATUS_INSUFFICIENT_RESOURCES is that the failure is tied to the amount of input the function will operate on, not necessarily to current system resource pressure. Retrying the same oversized parameter after a delay is therefore unlikely to help.
The generic NTSTATUS definition does not name which parameter or quota is involved, so the returning API and request format must provide that context. Instrument variable-length arrays, nested lists, strings, descriptor counts, and encoded blobs before the call. Record both the element count and total byte size because a limit can be expressed in either unit. For nested input, also record the largest individual element and depth.
Use checked arithmetic while calculating total lengths; an overflow can hide the real amount of data and turn a clean quota rejection into memory corruption. If the interface supports batching, split input at a documented boundary and preserve ordering/transaction semantics. Otherwise reject the request with the original limit visible in diagnostics. Raising an unrelated memory quota or adding RAM is not a justified response unless the specific API documents that dependency.
What to inspect
- Identify every variable-size parameter and log element count plus encoded byte size.
- Check total-size arithmetic before comparing against a limit or allocating a staging buffer.
- Batch only through a documented interface that preserves the required ordering and atomicity.
References
- Microsoft Open Specifications: NTSTATUS values
- Microsoft: Buffer descriptions for I/O control codes
- Microsoft: Defining I/O control codes
- Microsoft: Using NTSTATUS values
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