On Thu, Apr 12, 2012 at 2:52 PM, Tony Luck <tony.luck@xxxxxxxxx> wrote: > IA64 doesn't return a -EFAULT when we poke at the supposedly invalid user > address of "NULL" because we map a special page to catch prefetch references Leaping to conclusions ... fail :-( If I change the address from NULL to something that isn't mapped ... I still don't get -EFAULT. Looking more closely at futex_atomic_cmpxchg_inatomic() for the error case. -Tony -- To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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