* Len Brown <[EMAIL PROTECTED]> wrote: > c. disable the NMI whenever the ACPI interpeter is running > (who knows, maybe this isn't limited to the _INI case, but > could cause a hang at some other time -- only the > BIOS AML writers knows....)
i have tested this by forcing the NMI frequency to 10,000 per second, and never saw any other problem. So at least this particular laptop should be OK. So i /think/ this should be enough - the _INI case should be limited to bootup - or can it trigger during module load too? The IO-APIC based NMI watchdog should really only involve the southbridge (whose initialization package has this problem, in my guesstimation - do you agree?) and not random other devices - so once we have booted up we should be fine from this particular issue. acpi_nmi_disable()/enable() does a cross-IPI to all CPUs, so it can be quite heavy-handed - i'm not sure we want it for every interpreter invocation. Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/