[Devel] Re: [RFC][PATCH] Devices visibility container

[Dave Hansen]

On Tue, 2007-09-25 at 07:30 -0600, Eric W. Biederman wrote:
> Pavel Emelyanov <xemul at openvz.org> writes:
> >
> > Oh! Can you provide us an example when after the migration some
> > device's major+minor pair change on the same device?
> 
> SCSI disks on a SAN.  Network accessible block devices.
> All kinds of logical/virtual devices like ttys, the loop device, and
> ramdisks.
> 
> It isn't especially frequent that something cares, but fundamentally
> the same issues apply.

To be clear, this just covers cases where an application has
_internalized_ the device number, right?

Most applications should be pretty happy with the devices having
persistent device names across a restart, and we can do that with udev
and no kernel patching.

-- Dave

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