(In reply to Ismail D�nmez from comment #9) > > I can (un)fortunately can reproduce this still :-) I guess you want me to > checkout kernel-source for our packages from github and do a git bisect, > starting from v5.4? You mentioned this being reproducible on vanilla too, correct? In that case, once your machine is back online, I'd first check if this is reproducible still on our latest vanilla build. If you can still trigger it there, it would certainly indicate an upstream bug and would probably be easier to bisect directly on the mainline upstream tree, as our vanilla tree isn't updated on every upstream commit (so a single kernel-source/vanilla commit will contain multiple upstream commits). I suppose we can easily build a vanilla 5.4 or so in ibs and also check if this works or not, to have a starting point for a bisection (unless you remember any older specific version that this wasn't reproducible). I'd probably restrict the bisection to fs and mm (hopefully the bug is contained there) to minimize the steps. I wonder if this would be reproducible in a large VM on top of the same machine, so that you could automate the bisect and save you some time. Ping me if you want before you start bisection to discuss any details.