mjhjmtu

I have had a couple of nasty freezes recently when the system becomes unresponsive to the point that I need to hold down the power button to shut it down forcefully. As a result, I get corrupted ext4 filesystems (I usually have two partitions, / and /home) since they weren't unmounted properly, so the next time I try to boot fsck complains and tries to fix it (sometimes I need to boot into some LiveUSB distro and run fsck from there), but eventually just treats everything as garbage and puts everything into lost+found. I'm backing up my data, but you can imagine how frustrating this is.

I'm running Arch on Thinkpad X1 3rd gen, and I've asked this question on arch forums already, but seems like no one really knows how to go about this issue (here's the post on the forums; it also contains much more information about the crashes -- I didn't want to blindly copy-paste). I thought someone might suggest something here.

Neither Ctrl+Alt+F1-8 nor REISUB worked, and I've run memtest86, CPU stress test (to see if throttling takes place) and checked the SMART-status of the SSD, none of them show anything worrisome.

Dual-booting into Win10 works pretty fine, no crashes happened on it.

The only thing I could think of as a potential troublemaker is the microcode instructions which I believe I don't need since the CPU isn't too old. But that's very suspicious...