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Troubleshooting • tmp filling with empty wpa_ctrl files

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Hi all,
Running the latest Bookworm on an RPi handling Klipper for my printer. Printer keeps crashing out after a while, trying to bottom out the various causes and one appears to be a write failure due to overflowing tmp file.
Looking in tmp all but 5 files are of the form

Code:

wpa_ctrl_9972-2wpa_ctrl_9974-1wpa_ctrl_9974-2wpa_ctrl_9976-1wpa_ctrl_9976-2wpa_ctrl_9988-1wpa_ctrl_9988-2wpa_ctrl_9993-1wpa_ctrl_9993-2wpa_ctrl_9995-1wpa_ctrl_9995-2wpa_ctrl_9997-1wpa_ctrl_9997-2
Et cetera, et cetera...
And all are empty. They seem to just keep piling up until tmp is full and it crashes.
Any ideas what could be causing this? What are the files meant to contain? Can't seem to find much online.

Cheers!

Statistics: Posted by Red_O_Hair — Sat Jul 05, 2025 8:21 am



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