Is this mining? How do I fix error after the attempt?

[danielradosa]

I (15:33:27) [%mining-on 12.743.565.775.626.392.711 3.227.022.986.837.495.805 15.154.895.353.313.995.172 17.891.857.141.531.989.589 258.776.424.460.739.881]

thread 'serf' panicked at crates/nockvm/rust/nockvm/src/mem.rs:301:23:
Box<dyn Any>

thread 'tokio-runtime-worker' panicked at crates/nockchain/src/mining.rs:175:14:
Could not load mining kernel: OneshotChannelError(RecvError(()))
W (15:33:27) mining: Error during mining attempt: JoinError::Panic(Id(301), "Could not load mining kernel: OneshotChannelError(RecvError(()))", ...)

[AramaicAllspice]

Try this then run again

sudo sysctl -w vm.overcommit_memory=1

Could not load mining kernel

The issue here is that Linux disallows obvious overcommits for MAP_ANONYMOUS by default. The Nock Stack mmaps 128GB which is too much for most systems to commit. Anybody affected by this issue should do sudo sysctl -w vm.overcommit_memory=1 and try again. Notably this overcommit limit does not affect MAP_SHARED mappings, which is why we can map 1TB to LMDB in vere without issue. I would PR this to the repo readme but I can’t. Here’s the commit Logan.