[6.9.0/6.9.1 - Kernel Panic due to netfilter (nf_nat_setup_info) - Docker Static IP (macvlan)]

Just wanted to give an update for those of you having this issue who are still on 6.9 or earlier.

 

I have about 25 docker containers all running on various VLANs. This is on a Dell PowerEdge R510 server. I was experiencing crashes daily because of this issue. I tried tracking down the problem for weeks.

 

I updated to 6.10 rc1 3 weeks ago and haven't had a single crash since.

 

Migrating from macvlan to ipvlan driver couldn't be easier; none of my docker containers were affected negatively.

 

I would definitely recommend upgrading to 6.10 if you are experiencing kernel panics and run docker with custom networks.

 

EDIT: Attempted to upgrade to RC2 but received (bzroot checksum failed) error on bootup. I made a flash backup before upgrading so I manually restored to a new flash drive. Will hold off on upgrading to RC2 for a bit in case it happens again.

[Unraid OS version 6.8 Release Plan]

It's interesting that there is also the kernel panic issue when setting docker containers to br0 with a custom IP address with certain hardware. This is happening to me on stable (v6.7.2) currently.

 

It seems that the custom IP address functionality of docker containers on br0 introduces a lot of unexpected issues in general.