Error "cuCtxCreate(): invalid device ordinal" with multiple sessions
#1
When trying to run multiple sessions at the same time the second session fails with the following error 
Code:
cuCtxCreate(): invalid device ordinal

I have a second system with similar hardware that works fine, but this new system isn't working the same. 

I've tried updating the NVIDIA driver to 418.67/430.34 and installed CUDA sdk, but nothing helped. Even tried downgrading the kernel from 5.0.0-15 to 4.18.0-25.
Code:
root@hostname:~# hashcat -I
hashcat (v5.1.0-1243-gd1f473d6) starting...

CUDA Info:
==========

CUDA.Version.: 10.1

Backend Device ID #1 (Alias: #9)
  Name...........: GeForce GTX 1080 Ti
  Processor(s)...: 28
  Clock..........: 1582
  Memory.........: 11178 MB

Backend Device ID #2 (Alias: #10)
  Name...........: GeForce GTX 1080 Ti
  Processor(s)...: 28
  Clock..........: 1582
  Memory.........: 11178 MB

Backend Device ID #3 (Alias: #11)
  Name...........: GeForce GTX 1080 Ti
  Processor(s)...: 28
  Clock..........: 1582
  Memory.........: 11178 MB

Backend Device ID #4 (Alias: #12)
  Name...........: GeForce GTX 1080 Ti
  Processor(s)...: 28
  Clock..........: 1582
  Memory.........: 11178 MB

Backend Device ID #5 (Alias: #13)
  Name...........: GeForce GTX 1080 Ti
  Processor(s)...: 28
  Clock..........: 1582
  Memory.........: 11178 MB

Backend Device ID #6 (Alias: #14)
  Name...........: GeForce GTX 1080 Ti
  Processor(s)...: 28
  Clock..........: 1582
  Memory.........: 11178 MB

Backend Device ID #7 (Alias: #15)
  Name...........: GeForce GTX 1080 Ti
  Processor(s)...: 28
  Clock..........: 1582
  Memory.........: 11178 MB

Backend Device ID #8 (Alias: #16)
  Name...........: GeForce GTX 1080 Ti
  Processor(s)...: 28
  Clock..........: 1582
  Memory.........: 11178 MB

OpenCL Info:
============

OpenCL Platform ID #1
  Vendor..: NVIDIA Corporation
  Name....: NVIDIA CUDA
  Version.: OpenCL 1.2 CUDA 10.1.152

  Backend Device ID #9 (Alias: #1)
    Type...........: GPU
    Vendor.ID......: 32
    Vendor.........: NVIDIA Corporation
    Name...........: GeForce GTX 1080 Ti
    Version........: OpenCL 1.2 CUDA
    Processor(s)...: 28
    Clock..........: 1582
    Memory.........: 2794/11178 MB allocatable
    OpenCL.Version.: OpenCL C 1.2
    Driver.Version.: 418.67

  Backend Device ID #10 (Alias: #2)
    Type...........: GPU
    Vendor.ID......: 32
    Vendor.........: NVIDIA Corporation
    Name...........: GeForce GTX 1080 Ti
    Version........: OpenCL 1.2 CUDA
    Processor(s)...: 28
    Clock..........: 1582
    Memory.........: 2794/11178 MB allocatable
    OpenCL.Version.: OpenCL C 1.2
    Driver.Version.: 418.67

  Backend Device ID #11 (Alias: #3)
    Type...........: GPU
    Vendor.ID......: 32
    Vendor.........: NVIDIA Corporation
    Name...........: GeForce GTX 1080 Ti
    Version........: OpenCL 1.2 CUDA
    Processor(s)...: 28
    Clock..........: 1582
    Memory.........: 2794/11178 MB allocatable
    OpenCL.Version.: OpenCL C 1.2
    Driver.Version.: 418.67

  Backend Device ID #12 (Alias: #4)
    Type...........: GPU
    Vendor.ID......: 32
    Vendor.........: NVIDIA Corporation
    Name...........: GeForce GTX 1080 Ti
    Version........: OpenCL 1.2 CUDA
    Processor(s)...: 28
    Clock..........: 1582
    Memory.........: 2794/11178 MB allocatable
    OpenCL.Version.: OpenCL C 1.2
    Driver.Version.: 418.67

  Backend Device ID #13 (Alias: #5)
    Type...........: GPU
    Vendor.ID......: 32
    Vendor.........: NVIDIA Corporation
    Name...........: GeForce GTX 1080 Ti
    Version........: OpenCL 1.2 CUDA
    Processor(s)...: 28
    Clock..........: 1582
    Memory.........: 2794/11178 MB allocatable
    OpenCL.Version.: OpenCL C 1.2
    Driver.Version.: 418.67

  Backend Device ID #14 (Alias: #6)
    Type...........: GPU
    Vendor.ID......: 32
    Vendor.........: NVIDIA Corporation
    Name...........: GeForce GTX 1080 Ti
    Version........: OpenCL 1.2 CUDA
    Processor(s)...: 28
    Clock..........: 1582
    Memory.........: 2794/11178 MB allocatable
    OpenCL.Version.: OpenCL C 1.2
    Driver.Version.: 418.67

  Backend Device ID #15 (Alias: #7)
    Type...........: GPU
    Vendor.ID......: 32
    Vendor.........: NVIDIA Corporation
    Name...........: GeForce GTX 1080 Ti
    Version........: OpenCL 1.2 CUDA
    Processor(s)...: 28
    Clock..........: 1582
    Memory.........: 2794/11178 MB allocatable
    OpenCL.Version.: OpenCL C 1.2
    Driver.Version.: 418.67

  Backend Device ID #16 (Alias: #8)
    Type...........: GPU
    Vendor.ID......: 32
    Vendor.........: NVIDIA Corporation
    Name...........: GeForce GTX 1080 Ti
    Version........: OpenCL 1.2 CUDA
    Processor(s)...: 28
    Clock..........: 1582
    Memory.........: 2794/11178 MB allocatable
    OpenCL.Version.: OpenCL C 1.2
    Driver.Version.: 418.67
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