very good test. somehow I had a feeling that this could be the case, because these things were stress tested already (but as we can guess now, it was mainly tested on linux systems).
The root cause can be a lot of things including mingw-fwrite() / windows os specific problems or file system limitations, but as far as I understood NTFS does not have any such limit (at least not that small, it's in the terabytes).
this is already a good approach to narrow down the causes of this issue (which now seems windows specific), but I guess this needs to be debugged with some minor source code changes in src/brain.c to see where hashcat is stuck and why it's not continuing to write or accept client requests.
The root cause can be a lot of things including mingw-fwrite() / windows os specific problems or file system limitations, but as far as I understood NTFS does not have any such limit (at least not that small, it's in the terabytes).
this is already a good approach to narrow down the causes of this issue (which now seems windows specific), but I guess this needs to be debugged with some minor source code changes in src/brain.c to see where hashcat is stuck and why it's not continuing to write or accept client requests.