Reclaimable slab memory troubleshooting
Split slab into reclaimable vs unreclaimable; high SUnreclaim = real kernel leak
grep -E 'Slab|SReclaimable|SUnreclaim' /proc/meminfo
more troubleshooting
all 32 commands →
OOM killer in dmesg
dmesg -T | grep -iE 'killed process|out of memory' | tail
OOM score of process
cat /proc/<pid>/oom_score /proc/<pid>/oom_score_adj
cgroup v2 OOM events
cat /sys/fs/cgroup/<name>/memory.events | grep -E 'oom|max'
Deleted files holding disk
lsof +L1 | sort -k7 -rn | head
Disk I/O latency saturation
iostat -x 1 | awk '$1!~/^$/{print $1, "util="$NF, "await="$(NF-2)}'