Hi,

 

I hat my Unraid server up for months without any issues before I upgraded to 6.12. Now it constantly crashes and I have no idea why.

 

I set up syslog to log to my ssd and see 3 issues/errors before the server is non-responding and I have to hard reboot: 2 x "vmalloc bug", 1 x "refcount_t: underflow; use-after-free". Complete log is attached.

 

I included the diagnostics file as well.

 

Any idea what causes the crash?

 

I need a few docker containers running 24x/7! (for example blinds control). I am going to vacation in a couple of days so if I do not find a solution until then I have to run thes containers on another machine...

 

So any help/hint much appreciated!

 

Best regards

Bernd

 

 

syslog-127.0.0.1.log h2-diagnostics-20230807-2037.zip

Try switching to ipvlan (Settings -> Docker Settings -> Docker custom network type -> ipvlan (advanced view must be enabled, top right)).

Thank you for your suggestion. I found the relevant post in the forum discussing the potential issue.

 

I do not get any macvlan traces log entries but I will try ipvlan to rule macvlan out.

 

However I am not sure if there are any side effects from the shared MAC address for the containers but if any there are probably workarounds...

 

24 minutes ago, berndh said:

I do not get any macvlan traces log entries

Nope, but you do get some nf_conntrack and those are usually related, but not always, still worth a try.

Right now two and a half day without issues. Looks promising.

 

However I hope this bug is fixed anytime soon to have MACVLAN as an option again.

 

Thank you for the support.

It's expected to have a working macvlan option for 6.12.4

Great to hear that.

 

And my system is still up and running! Since 14 days now... So it's almost safe to say that macvlan was the reason.

If you need macvlan you can try this release, there's a new option that should no longer cause call traces, see the release notes: