PROBLEM: (82071) (PATCH ID: OSF510-127)
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Kernel memory fault while using tablet instead of mouse.
        panic()
        trap()
        _XentMM()
        pgrp_ref()
        ttwakeup()
        ttyflush()
        tt_sysv_compat()
        ttioctl()
        aceioctl()
        spec_ioctl()
        vn_ioctl()
        ioctl_base()
        syscall()
        _Xsyscall()