Arch Linux

Beesh

Member

Registered: 2022-01-09

Posts: 37

fail to execute docker exec

lately, as I try to execute

docker exec -it <container> bash

it gives me this error

OCI runtime exec failed: exec failed: unable to start container process: open /dev/pts/0: operation not permitted: unknown

on every container I try that command on, what's happening? I'm on arch 5.18.10 with pacman -Syu executed today

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,230

Re: fail to execute docker exec

Any chance your kernel was updated today?  Did you reboot?

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Beesh

Member

Registered: 2022-01-09

Posts: 37

Re: fail to execute docker exec

yeah I rebooted indeed after the kernel update, as always. Can you replicate?

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,230

Re: fail to execute docker exec

Sorry, I would not know docker if it bit me on the arm.  Just looking for the low hanging fruit.

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Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

seth

Member

Registered: 2012-09-03

Posts: 58,960

Re: fail to execute docker exec

id; stat /dev/pts/0

Edit: https://serverfault.com/questions/10488 … o-terminal
Likewise strace docker to see what and maybe why it wants to do w/ the pts

Last edited by seth (2022-07-13 14:19:46)

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Beesh

Member

Registered: 2022-01-09

Posts: 37

Re: fail to execute docker exec

id; stat /dev/pts/0

Edit: https://serverfault.com/questions/10488 … o-terminal
Likewise strace docker to see what and maybe why it wants to do w/ the pts

I executed

id; stat /dev/pts/0

and this is the output

uid=0(root) gid=0(root) groups=0(root)
  File: /dev/pts/0
  Size: 0               Blocks: 0          IO Block: 1024   character special file
Device: 0,28    Inode: 3           Links: 1     Device type: 136,0
Access: (0620/crw--w----)  Uid: (    0/    root)   Gid: (    5/     tty)
Access: 2022-07-28 13:39:52.471484683 +0200
Modify: 2022-07-28 13:39:52.471484683 +0200
Change: 2022-07-28 13:39:15.471484683 +0200
 Birth: -

to strace docker I need to do something like this?

strace docker exec -it <container_name> bash

edit: if I restart docker service the problem is no more, is like it pops up again after some time, need to pin it down better, I will keep you updated

Last edited by Beesh (2022-07-28 13:34:57)

seth

Member

Registered: 2012-09-03

Posts: 58,960

Re: fail to execute docker exec

https://github.com/containerd/containerd/issues/7219
Maybe also ( https://github.com/kubernetes/kops/issues/14007 )

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Beesh

Member

Registered: 2022-01-09

Posts: 37

Re: fail to execute docker exec

https://github.com/containerd/containerd/issues/7219
[...]

I can successfully confirm that is

systemctl daemon-reload

command that cause the issue, thank you