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    Subject[WTF?] sys_tas() on m32r
    asmlinkage int sys_tas(int *addr)
    int oldval;
    unsigned long flags;

    if (!access_ok(VERIFY_WRITE, addr, sizeof (int)))
    return -EFAULT;
    oldval = *addr;
    if (!oldval)
    *addr = 1;
    return oldval;
    in arch/m32r/kernel/sys_m32r.c. Trivial oops *AND* ability to trigger
    IO with interrupts disabled.
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      Last update: 2005-12-23 07:18    [W:0.029 / U:11.436 seconds]
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