docker is stucked

[Kevin who]

Sorry to bother you guys. I got some problems with my system, after I update many docker containers on web gui at one time.

I think The main problem is just what i said, so now I can't open web gui, and every command of docker is dead. Every command, including 'docker info'. It just not response at all. I can't use web ui now, but I can still use ssh to connect. I tried to reboot system many times, but it just didn't work.

I even can't cd into /var/lib/docker.

So what shoud I do now? Can someone help me with that? Truely thanks a lot!

[trurl]

See the "Need Help?" sticky pinned near the top of the General Support subforum for instructions on how to get us more information. Diagnostics preferred if you can get it. 

 

[Kevin who]

Thank you! Very appreciate for your comment! Now I learn a way to get the diagnostics.zip file😄

here is it

 

mr-black-diagnostics-20200229-1704.zip

[Kevin who]

The problem caused on 2020-02-26

[JorgeB]

There's a btrfs related kernel oops, it doesn't identify a specific filesystem but the docker image would be the most likely culprit, re-create it, rebooting after that's done is also a good idea.

[trurl]

If you can't get into the webUI try disabling docker by editing config/docker.cfg on the flash drive, and reboot in SAFE mode.

[Kevin who]

thanks, I'll try it

[Kevin who]

well, I set the command 

DOCKER_ENABLED="no"

and reboot then

It seems to have no effect

If the system need to reboot in safe mode, I don't know how to do when use remote connect

[trurl]

Editing that file won't change anything until Unraid reads it again. If you don't have access rebooting is the way to do that. SAFE mode was just an extra suggestion but just reboot if you can. 

[Kevin who]

Thanks for reminding! I found that simple command 'reboot' won't work because of the stuck process. So when I use command 

echo 1 > /proc/sys/kernel/sysrq
echo b > /proc/sysrq-trigger

The system finally rebooted, and now I fix the problem.

Thanks again!