clEnqueueNDRangeKernel(): CL_MEM_OBJECT_ALLOCATION_FAILURE

[tecxx]

Hello,
running hashcat in The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali) linux AWS EC2 instance (P3.x8 with 4x Nvidia Tesla)

trying to crack SHA1 hashes, small files for testing work fine.
when i try to crack a SHA1 file with over 20 GB in size, the result is

Code:

hashcat (v5.1.0) starting... * Device #5: Not a native Intel OpenCL runtime. Expect massive speed loss.             You can use --force to override, but do not report related errors. nvmlDeviceGetFanSpeed(): Not Supported nvmlDeviceGetFanSpeed(): Not Supported nvmlDeviceGetFanSpeed(): Not Supported nvmlDeviceGetFanSpeed(): Not Supported OpenCL Platform #1: NVIDIA Corporation ====================================== * Device #1: Tesla V100-SXM2-16GB, 4040/16160 MB allocatable, 80MCU * Device #2: Tesla V100-SXM2-16GB, 4040/16160 MB allocatable, 80MCU * Device #3: Tesla V100-SXM2-16GB, 4040/16160 MB allocatable, 80MCU * Device #4: Tesla V100-SXM2-16GB, 4040/16160 MB allocatable, 80MCU OpenCL Platform #2: The pocl project ==================================== * Device #5: pthread-Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz, skipped. Bitmap table overflowed at 18 bits. This typically happens with too many hashes and reduces your performance. You can increase the bitmap table size with --bitmap-max, but this creates a trade-off between L2-cache and bitmap efficiency. It is therefore not guaranteed to restore full performance. Hashes: 551509767 digests; 551509767 unique digests, 1 unique salts Bitmaps: 18 bits, 262144 entries, 0x0003ffff mask, 1048576 bytes, 5/13 rotates Applicable optimizers: * Zero-Byte * Early-Skip * Not-Salted * Not-Iterated * Single-Salt * Brute-Force * Raw-Hash Minimum password length supported by kernel: 0 Maximum password length supported by kernel: 256 ATTENTION! Pure (unoptimized) OpenCL kernels selected. This enables cracking passwords and salts > length 32 but for the price of drastically reduced performance. If you want to switch to optimized OpenCL kernels, append -O to your commandline. Watchdog: Temperature abort trigger set to 90c * Device #1: build_opts '-cl-std=CL1.2 -I OpenCL -I /usr/share/hashcat/OpenCL -D LOCAL_MEM_TYPE=1 -D VENDOR_ID=32 -D CUDA_ARCH=700 -D AMD_ROCM=0 -D VECT_SIZE=1 -D DEVICE_TYPE=4 -D DGST_R0=3 -D DGST_R1=4 -D DGST_R2=2 -D DGST_R3=1 -D DGST_ELEM=5 -D KERN_TYPE=100 -D _unroll' clEnqueueNDRangeKernel(): CL_MEM_OBJECT_ALLOCATION_FAILURE Started: Thu Jan 17 23:24:44 2019 Stopped: Thu Jan 17 23:57:31 2019

it takes a long time to build up the dictionary, naturally, because the SHA1 file is massive. but can i avoid the crash somehow, or is my only option to split the file in smaller chunks?

[undeath]

You need to split your hash file into smaller chunks.

[tecxx]

ty! done and working now.