Note: this applies to windows users only, starting from vista to windows 7(and server variants).

While running any GPGPU hashcat at extreme settings users may experience crashes and recovery of the GPU(s) through driver reset. This is a useful feature to prevent freezes, but not for hashcracking. It is caused by kernel runtimes exceeding 2 seconds.

To disable WDDM recovery, create a file called patch.reg, paste the contents of the code there, run as admin, reboot and enjoy!

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers]
"TdrLevel"=dword:00000000

WDDM explained — Rolf 2011/09/24 14:33