[BUG] FW Crash when SD card is removed

[sethtroisi]

Printer model

MK3S

MMU model

No-MMU

Firmware versions

3.14.0-8066

Upgrades and modifications

None

Printing from...

SD Card

Describe the bug

"FW crash detected" each time SD card is removed.

How to reproduce

1. Have SD card inserted (inserting SD card works fine)
2. Remove SD card

Expected behavior

No response

Files

crash.webm

[3d-gussner]

@sethtroisi I see that you selected in the issue printer model the MK3 without a S, but in your video your printer has MK3S firmware installed. Which printer do you have?

I can't reproduce your issue. I had to use the MK404 Simulator as I don't have a real MK3 at the moment.
See
https://github.com/user-attachments/assets/66deb3f3-7615-4597-8356-f0c625395367

Did it work with FW 3.14.0 and suddenly it started to crash?

Did you have the issue before FW 3.14.0?

[sethtroisi]

It's an MK3S. I recently upgraded to FW 3.14.0 and immediately started having crashes which I had never had before.

I flashed back to prusa3d_fw_MK3S_MK3S+_3_13_3_7094 and the crashes stop happening.
I flashed MK3S_MK3S+_FW_3.14.0_MULTILANG again and crashes resume.

[3d-gussner]

It's an MK3S. I recently upgraded to FW 3.14.0 and immediately started having crashes which I had never had before.

I flashed back to prusa3d_fw_MK3S_MK3S+_3_13_3_7094 and the crashes stop happening. I flashed MK3S_MK3S+_FW_3.14.0_MULTILANG again and crashes resume.

I tried to reproduce this issue also on real printer and it works.

Can you please:

1. Use a different fresh formatted FAT32 SDCard
2. Connect via USB and use a serial monitor like Putty or https://www.serialterminal.com/ to capture the serial output.
3. Please provide also the CRASH DUMP see https://help.prusa3d.com/article/crash-dump_364959
4. Contact LiveChat support and ask them to forward your logfiles to me.