CL Build Failure

[led5150]

I got the following error after waiting a very long time for the "backend runtime" to be initialized.

Code:

clBuildProgram(): CL_BUILD_PROGRAM_FAILURE

Compile Server Error.
* Device #2: Kernel /usr/local/share/hashcat/OpenCL/m01800-pure.cl build failed.

I'm running this command:

Code:

hashcat -d 2 -a 0 -m 1800 sha512_hash.txt ./wordlists/Leaked-Databases/rockyou.txt -r ~/hashcat/rules/best64.rule

My device #2 is:

* Device #2: Iris Pro, 1472/1536 MB (384 MB allocatable), 40MCU

What is the cause of this error, and how might I go about remedying it?

NOTE:

When I run the exact same code with the -O flag, it actually runs, however I don't trust the -O flag anymore, considering my post :

https://hashcat.net/forum/thread-9327-po...l#pid49294

Would love an answer for that one!  Not sure what -O is doing or why I keep having issues with it.

Thanks again!

Matt