Post
Topic
Board Mining (Altcoins)
Re: CCminer(SP-MOD) Modded NVIDIA Maxwell kernels.
by
joblo
on 07/08/2015, 02:25:11 UTC
has anyone figured out a solution to the memory leak on the newer builds?  it seems to happen for most of the popular algos.  

here's what happens:  reboot, start a fresh mining session. Stop the miner using CTRL+C, get a seg fault message almost all the time, restart the miner, and almost instantly, one GPU crashes (hash shows about 1/3 normal speed), exact same speed everytime the hashes pop up.

rebooting will always fix the issue.

I see this problem almost daily but only on two specific cards. One of my 750ti's on a Windows machine is affected
but the other on a different Windows is not affected. My 970 on a Linux box is also affected. Both affected machines
have two cards but only one card is affected and always the same card.

I've only seen it on a couple of algos but they are the ones that I mine the most. It may have occurred on algos that
run less frequently and for shorter intervals without me noticing.

Given only some cards seem to have the problem if the devs don't have one it will be almost imposible to crack.
I would be willing to help troubleshoot on my systems if I'm provided instructions on data to collect. An instrumented
version of ccminer could be used to look for specific things like an unexepectedly low hash rate for the card type to
trigger specific data collection when the problem is detected. There could also be useful info gathered with tools
such as nvidia-smi, gpuz etc.