Re: [linux-usb-devel] Re: OHCI problems with suspend/resume

From: Benjamin Herrenschmidt (benh_at_kernel.crashing.org)
Date: 07/31/03

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    To: Pavel Machek <pavel@ucw.cz>
Date:	31 Jul 2003 23:25:18 +0200

    On Thu, 2003-07-31 at 11:49, Pavel Machek wrote:
    > Hi!
    >
    > > - APM uses the pm_*() calls for a vetoable check,
    > > never issues SAVE_STATE, then goes POWER_DOWN.
    >
    > I remember the reason... SAVE_STATE expects user processes to be
    > stopped, which is not the case in APM. Perhaps that is easy to fix
    > these days...

    No ! You may feel better stopping user processes (and actuallty you
    may require that for swsusp, I don't know) but the whole PM scheme is
    designed to make that unnecessary. I do NOT stop user processes on
    suspend-to-RAM on PowerMacs, I don't think neither APM nor ACPI need
    that (I may be wrong here, but if that is the case, then some drivers
    need fixing).

    Ben.

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