PROBLEM:  (MGO102704, GOZ100762, UVO105425) (Patch ID: OSF415-410091)
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AlphaStation 255 systems with a PowerStorm 3D30 (PBXGB-AA) or PowerStorm
4D20 (PBXGB-CA) graphics card may hang, halt, or crash.

A typical halt is:

    halt code 2
    kernel stack not valid halt

A typical crash is:

    trap: invalid memory read access from kernel mode

        faulting virtual address:     0x69622f7273753088
        pc of faulting instruction:   0xfffffc00004440e0
        ra contents at time of fault: 0xfffffc00004440d0
        sp contents at time of fault: 0x000000011ffff708

    panic (cpu 0): kernel memory fault