Messages in this thread | | | Subject | Re: 2.6.15-mm4 failure on power5 | From | Arjan van de Ven <> | Date | Wed, 18 Jan 2006 08:38:01 +0100 |
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On Wed, 2006-01-18 at 01:28 -0600, Nathan Lynch wrote: > Andrew Morton wrote: > > Ingo Molnar <mingo@elte.hu> wrote: > > > - so buggy early bootup code which relies on interrupts being > > > off might be surprised by it. > > > > I don't think it's necessarily buggy that bootup code needs interrupts > > disabled. It _is_ buggy that bootup code which needs interrupts disabled > > is calling lock_cpu_hotplug(). > > I guess I don't understand -- why is it wrong for code that runs only > in early early bootup, when there is only one process context, to use > common code to e.g. register a hotplug cpu notifier?
it's nasty to use things-that-can-sleep there though. Even if that sleep is a bit theoretical, it still isn't nice.
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