Versions

Betweenlands version:

TheBetweenlands-3.5.7-universal

Forge version:

forge-1.12.2-14.23.5.2847-universal

Singleplayer or Multiplayer:

Multiplayer

Installed mods:

https://www.curseforge.com/minecraft/modpacks/ancient-towncraft

The server hard locked up for hours - find below the warmroast and the stall reports.

Link to full crash log

Stall reports from when it locked hard-
stall-2020-03-02_14.42.41.txt
stall-2020-03-02_14.43.12-1.txt
stall-2020-03-02_14.44.14-2.txt
stall-2020-03-02_14.46.16-3.txt
stall-2020-03-02_14.50.18-4.txt
stall-2020-03-02_14.58.20-5.txt
stall-2020-03-02_15.14.22-6.txt
stall-2020-03-02_12.53.55.txt
stall-2020-03-02_13.01.16.txt
stall-2020-03-02_13.03.11.txt
stall-2020-03-02_13.46.55.txt
stall-2020-03-02_14.10.37.txt
stall-2020-03-02_14.23.55.txt

stall-2020-03-02_14.30.08.txt
stall-2020-03-02_14.39.48.txt
stall-2020-03-02_14.40.22-1.txt
stall-2020-03-02_14.41.25-2.txt

Description of the problem

Pictures:

Warmroast-

Was that a one off thing or is it persistent/happened more than once?
I don't see any code that could possibly get stuck there.

It has happened before for short periods where I was able to catch it, but not for hours, I will continue to monitor it.

Here is where it happened on the 27th -
https://gist.github.com/ProsperCraft/cc1e787752b35476533709afff9fcaeb

Did you have any other stalls that did not involve BL?

Here is one that happened on the 29th -
Betweenlands-
https://gist.github.com/ProsperCraft/2c2e52f01d3c7bcb4236de5ccce8eb87

Here is one from Ancient Warfare I suspect when it was generating a giant complex of buildings-
https://gist.github.com/ProsperCraft/d85d2321e5623443d2972631bddc278e

That is all of my stall reports.

Hm okay, thanks.
I can see where it locks up, but not why it would do that.
What type of server are you using? (vanilla+forge, spigot, etc.)
Maybe try without any kind of sampler (mod) installed for a while and check if the stalls still happen? Perhaps the sampler itself is causing the stall?

Forge only, no Mohist, no Sponge.

It isn't happening often, I think I had died and not respawned for an extended period of time(overnight?) if that helps.

Ah interesting. That at least gives me something to start with ;)

Hey! Has this been something we've managed to progress towards fixing? I notice there hasn't been much activity for a while in this issue.

Thanks!