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    SubjectRe: [RFC][PATCH -mm 3/3] PM: Disable _request_firmware before hibernation/suspend
    On 5/27/07, Matthew Garrett <> wrote:
    > On Sun, May 27, 2007 at 10:31:53PM +0200, Rafael J. Wysocki wrote:
    > > From: Rafael J. Wysocki <>
    > >
    > > Use a hibernation and suspend notifier to disable the firmware requesting
    > > mechanism before a hibernation/suspend and enable it after the operation.
    > This avoids the problem of .resume methods calling userspace while
    > userspace is frozen and a resulting hang, but does it actually result in
    > the drivers beginning to work again? If we remove process freezing in
    > STR, this should just work[1] without the need to complicate things. On
    > the other hand, if we don't want to support these functions in the
    > suspend and resume methods we could just audit the kernel and remove
    > them all.

    What exactly is the problem we see here? The timeout of the firmware loader?
    What goes wrong with frozen userspace, usually there is only a netlink
    message sent from the kernel, which should be received and handled
    just fine when userspace is running again.

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      Last update: 2007-05-27 23:53    [W:0.020 / U:5.088 seconds]
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