[BUG]
Resolved 💬 28 comments Opened Mar 10, 2026 by alexwyattdev Closed Mar 17, 2026
Preflight Checklist
- [x] I have searched existing issues and this hasn't been reported yet
- [x] This is a single bug report (please file separate reports for different bugs)
- [x] I am using the latest version of Claude Code
What's Wrong?
/heapdump
⎿ Failed to create heap dump: EEXIST: file already exists, mkdir 'C:\Users\alexu\Desktop'
What Should Happen?
Show me why memory usage is so high.
Error Messages/Logs
⎿ Failed to create heap dump: EEXIST: file already exists, mkdir 'C:\Users\alexu\Desktop'Steps to Reproduce
call /heapdump
Claude Model
Sonnet (default)
Is this a regression?
I don't know
Last Working Version
_No response_
Claude Code Version
2.1.72
Platform
Anthropic API
Operating System
Windows
Terminal/Shell
Windows Terminal
Additional Information
_No response_
28 Comments
Im experiencing the same issue
<img width="1091" height="187" alt="Image" src="https://github.com/user-attachments/assets/30be37f4-8b49-4e82-b8e4-afa1585e640c" />
same
same problem here
same
same
same
same :)
Same.
Same
same
same
Same problem here. I am using Claude Code CLI version 2.1.72 in Windows.
same on windows
Claude Code v2.1.71
Opus 4.6 · Claude Team
<img width="380" height="144" alt="Image" src="https://github.com/user-attachments/assets/b9a900b9-f9f3-46ef-b408-bcfd50243f0a" />
same.
Windows
Claude Code v2.1.71
same
Same
<img width="1115" height="628" alt="Image" src="https://github.com/user-attachments/assets/d5fbae4f-a904-45da-b892-66a949d842b3" />
Warning appears to be inaccurate as well. I'm seeing a much smaller memory footprint according to my task manager.
<img width="766" height="583" alt="Image" src="https://github.com/user-attachments/assets/8a1cd83a-6a6f-4715-b159-3b7dedf152be" />
Thanks for the reports, we're investigating. Is anyone here _not_ on a Windows machine? Want to make sure I understand the scope of impact.
I'm on Linux, @szwang. Happy to help.
I'm on Linux vm @szwang
Seems to be fixed for me in 2.1.72
I switched to stable from latest version and it stabilised.
Happens to me on Claude Code v2.1.72, Sonnet 4.6, Windows 11 , Windows terminal
Still having this issue on v2.1.72 Windows, Opus 4.6, Windows Terminal
It might also be VSCode specific @szwang - noticed that the mem usage number it is giving matches my VSCode mem but not any combination of claude instance memories, even though I am not running claude from any VSCode terminal
(If you are wondering why the ~1GB discrepancy, it is transient, sometimes when I tab into process manager it is up to 7.4gb etc then drops down)
<img width="1607" height="543" alt="Image" src="https://github.com/user-attachments/assets/5418704f-b505-4236-9e71-1a2c35b0f730" />
Also having this issue. version 2.1.72 windows
Thanks all! A fix was shipped with 2.1.73 this morning. Does it work now?
Thanks @szwang. Switched back to
latestand now on v2.1.74 and it's chugging along smoothly again.Fixed for me with v2.1.74
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