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Mathieu Desnoyers wrote: > x86_64 add/sub atomic ops does not seems to accept integer values bigger > than 32 bits as immediates. Intel's add/sub documentation specifies they > have to be passed as registers. This is correct; this is in fact true for all instructions except "mov". Whether it's sign- or zero-extending is sometimes subtle, but not in these cases. Do you happen to know if this is a manifest bug in the current kernel (i.e. if there is anywhere we're using more than ±2 GB as a constant to these functions?) Either way, I'll queue this up to tip:x86/urgent if Ingo hasn't already since this is a pure bug fix. -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||
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