Razer BSOD When Driver Verifier is Enabled

Not too long ago I complained about Razer’s poor UX and Support, this time it is a BSOD in one of their drivers, and forever crashing Razer Stargazer camera software.

I’ve been looking for a Windows Hello capable webcam, and the Razer Stargazer, based on Intel RealSense technology, looked promising. The device is all metal and tactical looking, but the software experience is so buggy, install this, install that, then crash after crash after crash. I ended up returning it for a refund, and got a Logitech BRIO instead, the BRIO is cheaper, and works great.

A couple days ago I was greeted with a BSOD on one of my test machines, a crash in the RZUDD.SYS “Razer Rzudd Engine” driver, part of the Razer Synapse software. What makes this interesting, is that the issue seems to be triggered by having Driver Verifier enabled.

One may be tempted to say do not enable Driver Verifier, but, the point of driver verifier is to help detect bugs in drivers, and is a basic requirement for driver certification. Per the WinDbg analysis, this appears to be a memory corruption bug. After some searching, I found that the Driver Verifier BSOD has been reported by other users, with no acknowledgement, and no fix forthcoming. I contacted Razer support, and not surprisingly, they suggested uninstall and reinstall. I tried the community forums, and I was just pointed back to support.

FAULTING_IP:
rzudd+28c80
...
DEFAULT_BUCKET_ID:  CODE_CORRUPTION
...
PROCESS_NAME:  RzSynapse.exe
...
STACK_TEXT:
nt!KeBugCheckEx
nt!MiSystemFault+0x12e69c
nt!MmAccessFault+0xae6
nt!KiPageFault+0x132
rzudd+0x28c80
rzudd+0x218d4
rzudd+0x7a9f
Wdf01000!FxIoQueue::DispatchRequestToDriver+0x1bf [minkernel\wdf\framework\shared\irphandlers\io\fxioqueue.cpp @ 3325]
Wdf01000!FxIoQueue::DispatchEvents+0x3bf [minkernel\wdf\framework\shared\irphandlers\io\fxioqueue.cpp @ 3125]
Wdf01000!FxPkgIo::DispatchStep1+0x53e [minkernel\wdf\framework\shared\irphandlers\io\fxpkgio.cpp @ 324]
Wdf01000!FxDevice::DispatchWithLock+0x5a5 [minkernel\wdf\framework\shared\core\fxdevice.cpp @ 1430]
nt!IovCallDriver+0x245
...
FAILURE_BUCKET_ID:  MEMORY_CORRUPTION_LARGE

I am done with Razer, exciting promises for technology on paper, great looking hardware, terrible support, terrible software.