1tb ssd forcefsck hangs on blackscreen

[luckyluca]

Hi,

Last night I accidentally unplugged my Pi400 whilst running ES.
System booted up without problems after that.

I wanted to check for potential errors so I run forcefsck and that's when problems started:

The Pi stays on a blackscreen when running forcefsck.
Actually the very first time, this single message showed up:

[521.241597] EXT4-fs error (device sda2): ext4 mb generate_buddy:805: group 1,

I removed the content of the /tmp folder and managed to boot again thus solving the problem, but as soon as I run forcefsck again, it's stuck on a blackscreen (no error message this time).

I have Retropie 4.8.2 on a 1TB ssd attached to a Pi400. Latest stable eeprom March 2022 I think. The system is stable with and without overclocking.
SSD works very well and never had issues with and without overclocking. I stress tested the system heavily before.

I never had this problem when using a 32gb sdcard as OS and used the 1TB ssd purely for content. I recently switched to a single ssd for OS + content and removed the sdcard.

I suppose it's not normal, any ideas what to check?
Thanks!