Re: [PATCH] udev: fix problem due to unsorted events

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On Tue, Mar 6, 2012 at 09:48, Andrey Vagin <avagin@xxxxxxxxx> wrote:
> From: Andrey Vagin <avagin@xxxxxxxxxx>
>
> A kernel gives events, but this events can be unsorted.
> For example, here is log from system:
> udevd[77]: seq 924 queued, 'add' 'bdi'
> udevd[77]: seq 926 queued, 'add' 'block'
> udevd[77]: seq 927 queued, 'add' 'block'
> udevd[77]: seq 928 queued, 'add' 'block
> udevd[77]: seq 925 queued, 'add' 'drivers'

The kernel cannot send un-ordered events. Please try to reproduce that
with 'udevadm monitor'.

I doubt that this is a problem udev should try to work around, its
logic is entirely based on the assumption that kernel events are
always in order.

Kay
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