Quote from: dd2017 on September 08, 2022, 01:54:06 PM

So a few days back I got a notification from the mining pool that it hasn't received any good hashes. I checked my mining rig, rebooted it, and it was showing the following errors upon the start of the ethminer:

Code:

ethminer 0.19.0-alpha.0
...
cu 06:27:11 cuda-1 Unexpected error CUDA error in func dev::eth::CUDAMiner::initEpoch_internal at line 123 out of memory on CUDA device 03:00.0

Any idea what is going on there?

That's quite an old miner, AFAIK ethminer 0.19.0 is from 2019.
That said, most of those miners can only work up to a certain epoch, there's a high chance that that specific version can only work up to the 516th.

For example (can be related), the old Claymore ETH miner has this in the official thread:

Quote from: Claymore on April 11, 2016, 03:30:36 PM

NOTE: please upgrade to v15.0 as soon as possible, old versions support up to #299 epoch only, they will fail then!
v15.0 supports up to #384 epoch (4GB DAG size).

That said, you need to switch to an updated miner.