Fedora Workstation freezes for 45-min. in low-memory conditions

asked 2017-11-23 09:43:38 -0500

Aeyoun gravatar image

updated 2017-11-23 09:56:39 -0500

I’ve got 16 GB of memory, and when my system hits that ceiling – GNOME and everything stops responding for up to 45-minutes before it recovers. If I wave my mouse around like a crazy person for a solid two-minutes, the interrupt-flood sometimes unfreezes the system earlier. Suggesting that maybe timers may be involved? Not sure.

I’ve tried adding a 256 GB SSD as a SWAP-partitions, but I’ve never seen my system put more than 512 MB on there. Whether I have swapon or not, the system deadlocks when hitting the memory ceiling. It’s listed in /proc/swaps when I have it enabled but it really doesn’t seem to get much use. Interestingly enough, I never see any signs of the oom-reaper actually killing off processes to free up memory.

Fedora 27, also happen with Fedora 26. – but it seems to happen more frequently as of late. Any ideas about the freezes? or why my system would prefers locking up for so long rather than use its swap?

Crossposted on Fedora Forums and Reddit.

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