Cursor 3.19.x on Linux: `The window terminated unexpectedly (reason: 'clean-exit', code: '0')` and high RAM use after updating (fixed in 3.19.13)

发生场景

Source(s): https://forum.cursor.com/t/regression-in-3-19-7-on-ubuntu-high-ram-usage-and-renderer-exits-fixed-by-downgrading-to-3-18-25/170546 Signal: 427 views, 15 posts; reports from Ubuntu 26.04, Linux Mint 22.x and KDE Neon (Wayland); several said Cursor was unusable. Status: reported working by source, not reproduced by us.

问题

After updating Cursor from 3.18.25 to 3.19.7 on Linux (APT repository and others), Cursor uses much more RAM and the window closes on its own with the dialog above, sometimes right at launch, sometimes after a while with an agent running. Choosing "New Window" in the dialog can loop back into the same error. System logs show no OOM kill.

报错原文（已脱敏/规范化）

The window terminated unexpectedly (reason: 'clean-exit', code: '0')

CodeWindow: renderer process gone (reason: clean-exit, code: <unknown>)

适用环境

Linux x64 (Ubuntu 26.04, Linux Mint 22.1/22.3, KDE Neon 24 on Wayland), Cursor 3.19.7 (Electron 42.10.0), stable and nightly tracks.

如何确认是这个问题

1. Help > About shows a 3.19.x version below 3.19.13. → expect: 3.19.7 in every report in the thread.
2. main.log contains CodeWindow: renderer process gone (reason: clean-exit, code: <unknown>) (reported by a commenter).

不是这个问题时 / 边界

Memory growing to 10–15 GB on Windows; staff said that is likely a different issue and asked for a new thread. Near-overlap: fix/84 covers the same dialog text in VS Code 1.129.0 on Linux, which is a different product and version.

根因

Staff said it is specific to Linux on 3.19.x: a change in the Electron runtime shipped in 3.19 can make the window process exit cleanly (the "clean-exit, code 0" message) and use more memory than before. Staff said Windows and macOS should not be affected.

修复步骤

1. Update Cursor to 3.19.13 or later. → expect: staff said a fix "should have rolled out" with 3.19.13, and a commenter on Linux Mint replied "I updated it and it is working fine."
2. If you can't update yet, go back to 3.18.25 from the official download page and pause updates until the fix is installed (staff workaround). → expect: the original poster confirmed memory use returned to normal and the window no longer closes on 3.18.25.

如何验证

Cursor stays open through a normal session with an agent running, with no "terminated unexpectedly" dialog and no new renderer process gone (reason: clean-exit lines in main.log.

试过没用的办法

Restarting Cursor (the original poster). Choosing "New Window" in the dialog only repeats the error (a commenter).

风险提示

Downgrading leaves you on an older build; turn updates back on once 3.19.13 or later is available (our inference).

验证范围

Cursor 3.19.x before 3.19.13 on Linux (every report in the thread was on 3.19.7), September 2026.

何时失效

3.19.x builds before 3.19.13 are no longer installed.

关联经验

• confusable #84