Unix OS’s don’t crash like that. The software the UNIX OS is currently running might crash, but usually the OS stays up.
That's generally true when you're running well-behaved applications in an uncomplicated envornment. But, this list is the patch history of PHNE_40123 for HP-UX 11.11's ONC and NFS subsystem, which has a defect description document that's around 100 pages long:
PHNE_41023: ABORT
PHNE_39167: ABORT
PHNE_37568: HANG ABORT
PHNE_37110: HANG ABORT
PHNE_36168: HANG
PHNE_35418: ABORT
PHNE_34938: PANIC ABORT
PHNE_34662: HANG ABORT CORRUPTION
PHNE_34293: ABORT PANIC
PHNE_33971: ABORT HANG PANIC
PHNE_33315: HANG ABORT MEMORY_LEAK
PHNE_32811: CORRUPTION ABORT
PHNE_32477: ABORT HANG PANIC MEMORY_LEAK
PHNE_31097: HANG ABORT PANIC
PHNE_30661: ABORT HANG PANIC
PHNE_30380: ABORT
PHNE_30378: HANG ABORT
PHNE_29883: ABORT PANIC
PHNE_29303: PANIC HANG
PHNE_28983: ABORT PANIC MEMORY_LEAK HANG
PHNE_28137: ABORT PANIC CORRUPTION MEMORY_LEAK HANG
PHNE_28103: HANG
PHNE_27218: PANIC MEMORY_LEAK CORRUPTION HANG
PHNE_26388: PANIC
PHNE_25627: ABORT PANIC MEMORY_LEAK HANG
PHNE_25625: ABORT
PHNE_24910: ABORT PANIC CORRUPTION HANG
PHNE_24035: ABORT CORRUPTION HANG
PHNE_23502: ABORT PANIC HANG
PHNE_22878: PANIC HANG