

I opened my mouth to see how large it can open, got about 1" (2.54CM).
(That’s a big mouth…)
It’s probably obsolete by now (I’m not so sure in that department…) since Linux FS are usually robust. (I use F2FS and never have corrupted data caused by a crash.)
If you have changed your FStab (adding noatime) or remove journaling, data has a higher chance of corruption.
Looking at Magic-SysRq, it looks like commands the kernel does that’s useful for hang states (Unless a complete lockup occurs). I’ve never even heard of this, just letting the kernel managed the hang or use the power button.
I don’t exactly know how your distro handles these (Or if you are using an experimental distro), but Debian Sid handles crashes exceptionally well. I have used Manjaro, but bugs (audio, lockups) have happened while in use.
Have you checked if it’s even working? Take a look here to find out what exactly is it and see if it even works as intended.
Hopefully this is helpful to your troubles. Have a good day.
I’ve never heard of Magic-SysRq in my 6 years of using Linux.
I just turn my system off by force (Unplug/hold power button) and Ext4/XFS/F2FS does the rest.
What FS are you using?
It’s worse.