18:31 <paps__> Hello, I've been using Debian sid from @cy8aer for a while now (since March) on a M2 pro 16" with 16gb of RAM and everything has been super great, thanks again btw :) Except for one thing! I can reliably crash (freeze) the whole machine by basically opening lots of tabs in Firefox. I have a 30gb swapfile that is evidently not being used (stays below 200mb most of the time). Sometimes the system freezes for 30s and then comes

18:31 <paps__> back, sometimes not. I think the oom killer is at work. It looks like it's a known problem, described here https://www.reddit.com/r/AsahiLinux/comments/1gy0t86/psa_transitioning_from_zramswap_to_zswap/ by marcan with fixes, but I don't have zram enabled. My question is how do I get Firefox to use swap in my case?

18:34 <n3ph> paps__: you do have registered the swap? what does `swapon` show?

18:35 <cy8aer> I use "zswap.enabled=1" as kernel parameter without installed zram stuff (zram-tools). This is a solution for me.

18:36 <cy8aer> And I have a 32GB swap partition.

18:36 <cy8aer> I had zram before and crashed firefox.

18:41 <jannau> see https://discussion.fedoraproject.org/t/psa-transitioning-from-zram-swap-to-zswap/138256 for why zram + swap is a bad combination

18:50 <paps__> My swap is an encrypted swap file, swapon shows: /dev/dm-0 partition 30G 810M -2

18:50 <paps__> I do not have zram and never had it. lsblk | grep zram shows nothing

18:51 <paps__> So if I understand correctly, the recommendation would be to enable zswap and that will fix my problem, you think?

18:55 <cy8aer> I did it and had no crashes since.

18:56 <cy8aer> It is quite simple to enable and to disable of course.

18:58 <jannau> not sure. the issue we've seen on fedora is explictly caused by using zram amd swap

19:00 <paps__> Interesting, I enabled it (echo 1 | sudo tee /sys/module/zswap/parameters/enabled) and disabled Firefox tab auto unload, and I can't make it crash for the past 10 minutes of heavy use. Swap usage is higher than before. I will continue monitoring