Hi. On Sun, Dec 03, 2023 at 12:58:47PM +0800, jeremy ardley wrote: > I noticed my Firefox -esr browser becoming progressively more sluggish. Then > suddenly I was back to the system login screen > > This is not the first time this has happened although previously when it > started getting sluggish I killed all Firefox related process > > System logs show the start of the event. > > 2023-12-03T11:35:03.335043+08:00 client kernel: [3792101.257070] Isolated Web > Co invoked oom-killer: > gfp_mask=0x140dca(GFP_HIGHUSER_MOVABLE|__GFP_COMP|__GFP_ZERO), order=0, > oom_score_adj=100
Tail of that particular trace always shows top memory consumers at the very moment oom-killer was invoked. Skipping that information can and will lead to guessing. And in this particular case: > inactive_anon:29781756kB > anon_thp: 17088512kB Do you have any relatively large filesystem, such as /tmp, mounted as tmpfs? Any tmpfs contents are not accounted by free(1) or top(1), but using large tmpfs with small swap can lead to funny results to say the least. Reco