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Node.jsNode.jsError code

ERR_RX_MEMORY_NOT_SUPPORTED

rx memory not supported

What does this code mean?

Code ERR_RX_MEMORY_NOT_SUPPORTED · An issue reported by Node.js.

Official explanation · Original text

A feature requiring runtime allocation of executable memory was used in an environment where that capability is unavailable. This includes creating an otherwise eligible FFI Fast API function, or allocating an FFI callback when libffi cannot provide a closure and executable memory is unavailable. Node.js does not guarantee a non-generated-code fallback for these operations. This error can be caught without terminating the process.

Troubleshooting and diagnostic links

First check that the document's product, version, and environment match your situation.

Source and terms of use

Errors | Node.js v26.13.1 Documentation ↗

Creator: Node.js contributors; Joyent, Inc. and other Node contributors
License: MIT License (Node.js documentation)
Checked on: 2026-11-12

Modifications: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source details · Original licenses and notices