Fatal runtime error: failed to initiate panic, error 5 when starting grin miner

Tech Support
1

Hi,

After building and installing grin-miner 1.0.2, i have this error when initiating

./target/release/grin-miner

grinerror
grinerror.PNG1116×832 75.1 KB

Thanks,

2

Run with RUST_BACKTRACE=1 and provide the output

RUST_BACKTRACE=1 ./target/release/grin-miner

What version of Ubuntu? What version of rustc? If you just download the pre-built images, does grin-miner work?

3

If I run that command from grin-miner directory, I get the same screen output.

If I run within target directory I get this:

image
image.png1086×637 88.3 KB

rustc version is 1.3.0

Ubuntu is 18.04.1 LTS

Where can I get the pre-built images? Haven’t tried it.

4

The error that you get when running within the target directory is because there is no “grin-miner.toml” in that directory - a different issue than the one you reported.

rustc 1.3.0 ? Do you mean 1.30.0? Regardless 1.30.0 is kind of dated - it is from October. Current version is 1.32.0 No idea though if that is the cause of your problem.

prebuild grin-miner is at https://github.com/mimblewimble/grin-miner/releases/latest

5

Hi,

Tried the pre-built image, it runs a few seconds then got a "killed’ message.

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image.png1903×960 72.8 KB

6

I also checked on grin-miner.log and I have this

image
image.png1896×608 301 KB

Btw, Im on a Digital Ocean VPS with 2 vCPU and 1GB ram.

I also tried the same on my laptop running on VirtualBox linux, the result is it freezes the VM.

Thanks!

7

1GB of RAM will not be enough memory. Try 4GB of RAM. (P.S. Out of the box and not making any changes to grin-miner.toml you are mining with your CPU which is what the output you attached is showing.)

8

I see. thanks for the support.

9

I am complete noob to mining and I got the exact same error and it is crashing. Please help with next steps.

Thanks

10

By exact same error do you mean, “Killed” ? You need more RAM and/or more swap space.

11

Yes, fatal runtime error: failed to initiate panic, error 5
Running Ubuntu on VM. My machine has sufficient RAM. How do I allocate more to Ubuntu?

12

Two different and unrelated problems in this thread.

"Killed" ==> need more memory
and
"Fatal runtime error: failed to initiate panic, error 5 when starting grin miner"

Did you initially run grin as root or using the sudo command and are now running as a normal user?

13

Ran it as a normal user and the miner as a normal user as well.

14

Okay. I haven’t got a clue. error 5 is Input/output error so I was guessing ownership or permission problems with the files under the .grin directory.

15

I increased the memory and it is working great now, thanks!