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    SubjectRe: [PATCH] udev enhancements to use kernel event queue
    Greg KH <greg@kroah.com> wrote:
    >
    > > 3) /sbin/hotplug events can occur out of order, eg: remove event occurs,
    > > /sbin/hotplug sleeps waiting for something, insert event occurs and
    > > completes immediately. Then the remove event completes, after the
    > > insert, resulting in out-of-order completion and a broken /dev. I have
    > > seen this several times with udev.
    >
    > I responded:
    > Yes this happens. I have a fix for this for udev itself. No
    > kernel changes are needed. I'll show it at OLS in July if you
    > want to see it :)

    This is a significantly crappy aspect of the /sbin/hotplug callout. I'd be
    very interested in reading an outline of how you propose fixing it, without
    waiting until OLS, thanks.

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