We've noticed that in recent versions of Proxmox, that /proc/swaps is wrong. It boils down to this inside the container:
That is correctly reporting 16384 free. Here's /proc/meminfo on the same container which is also correct:
But here's the problem, /proc/swaps shows all of the swap as used:
Proxmox host details:
Here's /proc/swaps on the hypervisor (correct):
Any ideas?
Code:
# free -m
total used free shared buff/cache available
Mem: 64738 118 64610 7 8 64619
Swap: 16384 0 16384That is correctly reporting 16384 free. Here's /proc/meminfo on the same container which is also correct:
Code:
# cat /proc/meminfo
MemTotal: 66291712 kB
MemFree: 66161292 kB
MemAvailable: 66170268 kB
Buffers: 0 kB
Cached: 8976 kB
SwapCached: 0 kB
Active: 100056 kB
Inactive: 8976 kB
Active(anon): 100056 kB
Inactive(anon): 8184 kB
Active(file): 0 kB
Inactive(file): 792 kB
Unevictable: 0 kB
Mlocked: 21992 kB
SwapTotal: 16777216 kB
SwapFree: 16777216 kB
Dirty: 0 kB
Writeback: 0 kB
AnonPages: 100056 kB
Mapped: 4488 kB
Shmem: 8184 kB
KReclaimable: 5051688 kB
Slab: 0 kB
SReclaimable: 0 kB
SUnreclaim: 0 kB
KernelStack: 36816 kB
PageTables: 113164 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 859064848 kB
Committed_AS: 74072316 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 13546056 kB
VmallocChunk: 0 kB
Percpu: 142400 kB
HardwareCorrupted: 0 kB
AnonHugePages: 0 kB
ShmemHugePages: 0 kB
ShmemPmdMapped: 0 kB
FileHugePages: 0 kB
FilePmdMapped: 0 kB
CmaTotal: 0 kB
CmaFree: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
Hugetlb: 0 kB
DirectMap4k: 18957800 kB
DirectMap2M: 202948608 kB
DirectMap1G: 1389363200 kBBut here's the problem, /proc/swaps shows all of the swap as used:
Code:
# cat /proc/swaps
Filename Type Size Used Priority
none virtual 16777216 16777216 0Proxmox host details:
Code:
# pveversion --verbose
proxmox-ve: 6.2-2 (running kernel: 5.4.73-1-pve)
pve-manager: 6.2-15 (running version: 6.2-15/48bd51b6)
pve-kernel-5.4: 6.3-1
pve-kernel-helper: 6.3-1
pve-kernel-5.4.73-1-pve: 5.4.73-1
pve-kernel-5.4.34-1-pve: 5.4.34-2
ceph-fuse: 12.2.11+dfsg1-2.1+b1
corosync: 3.0.4-pve1
criu: 3.11-3
glusterfs-client: 5.5-3
ifupdown: 0.8.35+pve1
ksm-control-daemon: 1.3-1
libjs-extjs: 6.0.1-10
libknet1: 1.16-pve1
libproxmox-acme-perl: 1.0.5
libpve-access-control: 6.1-3
libpve-apiclient-perl: 3.0-3
libpve-common-perl: 6.2-4
libpve-guest-common-perl: 3.1-3
libpve-http-server-perl: 3.0-6
libpve-storage-perl: 6.2-10
libqb0: 1.0.5-1
libspice-server1: 0.14.2-4~pve6+1
lvm2: 2.03.02-pve4
lxc-pve: 4.0.3-1
lxcfs: 4.0.3-pve3
novnc-pve: 1.1.0-1
proxmox-backup-client: 1.0.1-1
proxmox-mini-journalreader: 1.1-1
proxmox-widget-toolkit: 2.3-10
pve-cluster: 6.2-1
pve-container: 3.2-3
pve-docs: 6.2-6
pve-edk2-firmware: 2.20200531-1
pve-firewall: 4.1-3
pve-firmware: 3.1-3
pve-ha-manager: 3.1-1
pve-i18n: 2.2-2
pve-qemu-kvm: 5.1.0-6
pve-xtermjs: 4.7.0-2
qemu-server: 6.2-20
smartmontools: 7.1-pve2
spiceterm: 3.1-1
vncterm: 1.6-2
zfsutils-linux: 0.8.5-pve1Here's /proc/swaps on the hypervisor (correct):
Code:
# cat /proc/swaps
Filename Type Size Used Priority
/dev/zd16 partition 67108860 0 -2Any ideas?