The crashes seem to follow testing out the intel hardware transcoding driver. Have you updated the intel driver before the crashes started ? We had these types of crashes before and at the time I produced a matrix of different versions - but of course that list is now out of date but it shows that these crashes occur with some versions of the intel driver
See this old matrix here Hardware transcoding (QuickSync) causing server crash - #75 by sa2000
The driver that was being tested at the time of the crash was “Intel® Quick Sync Video H.264 Encoder”
