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On Tue, 17 Dec 2002, Richard B. Johnson wrote: > On Mon, 16 Dec 2002, Linus Torvalds wrote: > > > > instruction for a system call just do a > > > > call 0xfffff000 > > So you are going to do a system-call off a trap instead of an interrupt. No no. The kernel maps a magic read-only page at 0xfffff000, and there's no trap involved. The code at that address is kernel-generated for the CPU in question, and it will do whatever is most convenient. No traps. They're slow as hell. Linus - 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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