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Sorry I didn't reply to this thread, after Alan wrote I figured the topic was closed;-) Yes, per my initial message, gcc _will_ generate cmpxchg for the 80386 build. Indeed, it has been doing so for over a year with ACPI's previous private (and flawed) asm() invocation of cmpxchg. Andi/Alan suggested we invoke cmpxchg always in ACPI, but disable ACPI at boot-time in the unlikely event we find ourselves running on a cpu without that instruction. Luming has already taking a swing at this patch here: http://bugzilla.kernel.org/show_bug.cgi?id=2391 thanks, -Len - 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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