Cursor on macOS consuming massive memory (40GB+) → “Your system has run out of application memory”

Hey, thanks for the detailed report.

This looks like a memory leak during long chat sessions. To better track down the cause, I need a couple things:

  1. Cursor version: Cursor > About Cursor > Copy
  2. Process Explorer: Cmd + Shift + P > “Developer: Open Process Explorer” Which process is using the most memory (extensionHost, renderer, ptyHost?)

Workarounds for now:

  • Start a new chat from time to time instead of continuing a very long one
  • Restart Cursor every few hours if you’re doing heavy work
  • Try disabling extensions (cursor --disable-extensions) to check if an extension is the cause

The Process Explorer details will help narrow down where the leak is.