LXC Container / zfs busy and very high load with D (uninterruptible sleep) processes

T

TheMrg

Well-Known Member
Aug 1, 2019
122
4
58
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we have proxmox standalone. we have 20 LXC Containers on it.
since 7 days one of the containers is "amok".

one vm do very high ioload and have 2000 uninterruptible sleep processes
vm can not be stopped , so we stopped it with force.
we unmount its disk umount -l /rpool/subvol-135-disk-0
we want to destroy this container:
TASK ERROR: zfs error: cannot destroy 'rpool/subvol-135-disk-0': dataset is busy

what can we do?
reboot hole Proxmox server is not an option to us yet. we have concerns the 19 container did not comes up after reboot in this state.

yes it is an older proxmox server we know:
pveversion -v
proxmox-ve: 5.4-2 (running kernel: 4.15.18-17-pve)
pve-manager: 5.4-10 (running version: 5.4-10/9603c337)
pve-kernel-4.15: 5.4-5
pve-kernel-4.15.18-17-pve: 4.15.18-43
 
nachtrag:

grep rpool/subvol-135-disk-0 /proc/*/mounts

/proc/102150/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/103362/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/103452/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/103457/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/103463/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/103465/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/103467/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/1034/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/1037/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/1040/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/104422/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/104911/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/105099/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/105103/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/105114/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/105619/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/105733/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/1057/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/1058/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/107634/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/107643/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/107644/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/107651/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/107675/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/108278/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/108281/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/108283/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/108288/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/108291/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
grep: /proc/108420/mounts: Das Argument ist ungültig
/proc/115795/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/115810/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/115815/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/115818/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/115820/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/116698/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
grep: /proc/116764/mounts: Das Argument ist ungültig
/proc/117758/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/119570/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/119581/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/119588/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/119594/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/119598/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/120630/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/124129/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/124135/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/124139/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/124142/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/124145/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/125979/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/125985/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/125988/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/125991/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/125993/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/126236/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/126238/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/126240/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/126241/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/126371/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/127417/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/14572/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/21843/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/21845/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/21851/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/21855/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/21856/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/25699/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/25704/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/25707/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/25709/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/25710/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/28181/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/29542/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/30396/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
grep: /proc/3257/mounts: Das Argument ist ungültig
/proc/32839/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/34240/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/36495/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
grep: /proc/39106/mounts: Das Argument ist ungültig
/proc/42069/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/42073/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/42080/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/42090/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/42093/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/43308/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/43317/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/43323/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/43326/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/43327/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/4350/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/47177/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/47182/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/47184/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/47188/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/47191/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
grep: /proc/5227/mounts: Das Argument ist ungültig
/proc/53711/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/53713/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/53719/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/53726/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/54285/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
grep: /proc/54721/mounts: Das Argument ist ungültig
/proc/57759/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/57764/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/57772/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/57833/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/57871/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/58609/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/64375/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
grep: /proc/64944/mounts: Das Argument ist ungültig
/proc/66094/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/66098/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/66103/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/66115/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/66116/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/67417/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/67780/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/67845/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/67847/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/67848/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/68148/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/68159/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/68163/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/68170/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/68177/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/71742/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/72031/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/72884/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/77704/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/77716/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/77724/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/77727/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/77734/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/77784/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/77790/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/77796/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/77802/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/77806/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/81890/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/81892/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/85563/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/90883/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/91656/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/94172/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/94175/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/94179/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/94181/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/94183/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/94441/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/94443/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/94447/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
/proc/94449/mounts:rpool/subvol-135-disk-0 / zfs rw,noatime,xattr,posixacl 0 0
 
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