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+--- Thread: Hashcat IDs devices, then when benchmark throws CL_PLATFORM_NOT_FOUND_KHR (/thread-8714.html)
Hashcat IDs devices, then when benchmark throws CL_PLATFORM_NOT_FOUND_KHR - kcccs12 - 10-13-2019
1. Run hashcat -I, see four devices.
2. Run hashcat -b, errors out CL_PLATFORM_NOT_FOUND_KHR.
3. Run hashcat -I again, same error, no devices.
Any ideas?
Quote:kraken@kraken:~$ hashcat -I
hashcat (v5.1.0) starting...
OpenCL Info:
Platform ID #1
Vendor : NVIDIA Corporation
Name : NVIDIA CUDA
Version : OpenCL 1.2 CUDA 10.1.120
Device ID #1
Type : GPU
Vendor ID : 32
Vendor : NVIDIA Corporation
Name : GeForce GTX 1070
Version : OpenCL 1.2 CUDA
Processor(s) : 15
Clock : 1746
Memory : 2029/8119 MB allocatable
OpenCL Version : OpenCL C 1.2
Driver Version : 430.50
Device ID #2
Type : GPU
Vendor ID : 32
Vendor : NVIDIA Corporation
Name : GeForce GTX 1070
Version : OpenCL 1.2 CUDA
Processor(s) : 15
Clock : 1746
Memory : 2029/8119 MB allocatable
OpenCL Version : OpenCL C 1.2
Driver Version : 430.50
Device ID #3
Type : GPU
Vendor ID : 32
Vendor : NVIDIA Corporation
Name : GeForce GTX 1070
Version : OpenCL 1.2 CUDA
Processor(s) : 15
Clock : 1746
Memory : 2029/8119 MB allocatable
OpenCL Version : OpenCL C 1.2
Driver Version : 430.50
Device ID #4
Type : GPU
Vendor ID : 32
Vendor : NVIDIA Corporation
Name : GeForce GTX 1070
Version : OpenCL 1.2 CUDA
Processor(s) : 15
Clock : 1746
Memory : 2029/8119 MB allocatable
OpenCL Version : OpenCL C 1.2
Driver Version : 430.50
kraken@kraken:~$ hashcat -b
hashcat (v5.1.0) starting in benchmark mode...
Benchmarking uses hand-optimized kernel code by default.
You can use it in your cracking session by setting the -O option.
Note: Using optimized kernel code limits the maximum supported password length.
To disable the optimized kernel code in benchmark mode, use the -w option.
clGetPlatformIDs(): CL_PLATFORM_NOT_FOUND_KHR
Started: Sat Oct 12 23:29:10 2019
Stopped: Sat Oct 12 23:29:11 2019
kraken@kraken:~$ hashcat -I
hashcat (v5.1.0) starting...
clGetPlatformIDs(): CL_PLATFORM_NOT_FOUND_KHR
kraken@kraken:~$
RE: Hashcat IDs devices, then when benchmark throws CL_PLATFORM_NOT_FOUND_KHR - kcccs12 - 10-13-2019
Important to note.. I had this up and running last week with all four GPUs, it passed all benchmarks, but when I went to give it a full wordlist/ruleset and a real hash, hashcat started losing GPUs.. It hasn't worked correctly since then.
Ubuntu 18.04.3 Server
Hashcat 5.1.0
Four GTX 1070s
NVIDIA driver 430.50 from Nvidia directly
RE: Hashcat IDs devices, then when benchmark throws CL_PLATFORM_NOT_FOUND_KHR - Chick3nman - 10-13-2019
Hardware setup? This sounds a lot like the "we keep losing pci devices and i dont get it" error we keep seeing. The devices check out until you go to load them and then they fall off. Willing to bet on something like a bad backplane or the use of risers.