[lkml]   [2004]   [Dec]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCH] USB: fix Scheduling while atomic warning when resuming.
    On Tuesday 21 December 2004 7:48 pm, Jeff Garzik wrote:
    > If we are going for a minimalist -rc patch, why not drop the lock,
    > sleep, then reacquire the lock?

    If that lock were dropped, what would prevent other tasks from
    touching the hardware while it's sending RESUME signaling down
    the bus, and thereby mucking up the resume sequence?

    That 20+ msec is a protocol timer. Normally we'd want khubd
    to handle such things, and then resume all the child devices,
    but that's not so readily done for root hubs or during calls
    from the pm core code.

    - Dave

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2005-03-22 14:08    [W:0.019 / U:31.772 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site