GPUDirect RDMA causes kernel module to operate unreliably

I have updated the driver for a device with some calls to GPUDirect functionality. Now that device’s kernel object is linked to the nvidia kernel object and that device does not operate as expected anymore. Has anyone else experienced this? If so do you have any solutions? If not does anyone have any recommendations on how to troubleshoot why the updated device driver may be operating unreliably? Thanks.

said driver?
applicable os?
applicable device?

“that device does not operate as expected anymore”