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fileHandle.readableWebStream sometimes crashes on large inputs

nodejs/node#56116·122028·JavaScript·409 天未动·8 条评论·上游最近活跃 ·池内状态:可认领
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上游 issue 正文

### Version v22.10.0 ### Platform Reproducible on: ```text Linux smooreswork 6.11.8-300.fc41.x86_64 #1 SMP PREEMPT_DYNAMIC Thu Nov 14 20:37:39 UTC 2024 x86_64 GNU/Linux Linux 04d2433b1ce0 6.1.49-Unraid #1 SMP PREEMPT_DYNAMIC Wed Aug 30 09:42:35 PDT 2023 x86_64 x86_64 x86_64 GNU/Linux Linux server 6.8.0-49-generic #49-Ubuntu SMP PREEMPT_DYNAMIC Mon Nov 4 02:06:24 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux ``` ### Subsystem fs/promises ### What steps will reproduce the bug? ```js import { open } from "node:fs/promises" /** * Like readFile, but streams the file into memory in chunks * to avoid hard-coded 2GB limit on file I/O operations in * Node.js/libuv https://github.com/libuv/libuv/pull/1501 * * @param {string} path * @returns {Promise<Uint8Array>} */ export async function streamFile(path) { const fileHandle = await open(path) try { const stats = await fileHandle.stat() const fileData = new Uint8Array(stats.size) let i = 0 for await (const chunk of fileHandle.readableWebStream()) { const chunkArray = new Uint8Array(chunk) fileData.set(chunkArray, i) i += chunkArray.byteLength } return fileData } finally { await fileHandle.close() } } ``` Run the above function on any relatively large file in the Node.js REPL. The larger the file, the more consistent the failure. With a ~100MB file, I get the error maybe 1 in every 20 attempts on my laptop. With a 600MB file, it's more like every other attempt. ### How often does it reproduce? Is there a required condition? The file must be sufficiently large. I have never seen this occur with files smaller than 50MB. With files less than 200MB, it occurs occasionally. With files larger than 500MB, it occurs very consistently. I attempted to reproduce this in a simple node.js ESM script, but it does not seem to reproduce when the above function is run in a script. I can reproduce consistently in the REPL, and this same issue occurs consistently in the [Storyteller](https://g…
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