On Tue, Aug 23, 2022 at 02:59:29PM -0400, Chris Murphy wrote: > Same VM but a different boot: > > Excerpts: > > /sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/session.slice/gvfs-goa-volume-monitor.service/io.pressure:some avg10=3031575.41 avg60=56713935870.67 avg300=624837039080.83 total=18446621498826359 > /sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/session.slice/gvfs-goa-volume-monitor.service/io.pressure:full avg10=3031575.41 avg60=56713935870.80 avg300=624837039080.99 total=16045481047390973 > > None of that seems possible. > > io is also affected: > > /sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/session.slice/org.gnome.SettingsDaemon.Smartcard.service/io.pressure:full avg10=0.00 avg60=0.13 avg300=626490311370.87 total=16045481047397307 > > # oomctl > # grep -R . /sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/ > https://drive.google.com/file/d/1JoUxjQ2ribDvn5jmydCWXJdg0daaNScG/view?usp=sharing > > We're going to try reverting 5f69a6577bc33d8f6d6bbe02bccdeb357b287f56 and see if it helps. Can you see whether the following helps? Thanks. diff --git a/kernel/sched/psi.c b/kernel/sched/psi.c index ec66b40bdd40..00d62681ea6a 100644 --- a/kernel/sched/psi.c +++ b/kernel/sched/psi.c @@ -957,7 +957,7 @@ int psi_cgroup_alloc(struct cgroup *cgroup) if (static_branch_likely(&psi_disabled)) return 0; - cgroup->psi = kmalloc(sizeof(struct psi_group), GFP_KERNEL); + cgroup->psi = kzalloc(sizeof(struct psi_group), GFP_KERNEL); if (!cgroup->psi) return -ENOMEM;
