Re: pmac_nvram problems

From: Johannes Berg (johannes_at_sipsolutions.net)
Date: 08/18/05

  • Next message: jeff shia: "Re: can I write to the cdrom through writing to the device file sr0?" 
    To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date:	Thu, 18 Aug 2005 15:03:04 +0200

    On Thu, 2005-08-18 at 15:00 +1000, Benjamin Herrenschmidt wrote:

    > There used to be cases where we used the nvram stuff before kmalloc()
    > was available. I'll check if this is still the case.

    Ah, ok. Makes sense. In that case I suppose it must be #ifdef'ed for the
    module case.
     
    > Well... the driver doesn't expect you to boot a different OS while
    > suspended to disk :)

    Yeah :) It'd be nice though since except for that I haven't found any
    other adverse effects.

    > Regarding caching the data in memory, this is done becaues nvram is
    > actually a flash on recent machines, and you really want to limit the
    > number of write cycles to it.

    Ok, makes sense. When I get some time I'll look into converting and
    implementing reloading for that case, but now that I compile as a module
    and unload it, it hardly is a priority.

    Thanks for your answers,
    johannes

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  • Next message: jeff shia: "Re: can I write to the cdrom through writing to the device file sr0?"

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