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Date:      12 Mar 2002 22:07:38 +0100
From:      Dag-Erling Smorgrav <des@ofug.org>
To:        Poul-Henning Kamp <phk@critter.freebsd.dk>
Cc:        arch@FreeBSD.ORG, peter@FreeBSD.ORG, jake@FreeBSD.ORG
Subject:   Re: dumpsys() rewrite
Message-ID:  <xzphenltrz9.fsf@flood.ping.uio.no>
In-Reply-To: <14701.1015966841@critter.freebsd.dk>
References:  <14701.1015966841@critter.freebsd.dk>

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Poul-Henning Kamp <phk@critter.freebsd.dk> writes:
>  `) Device driver or proxy for it register their ability to do dumps
>     with the kernel, informing the kernel about the number of bytes
>     they have room for (and the sector size of the media ?).

Umm, no - it's simpler to just have a driver-provided helper for
disk_dumpcheck(), rather than a system for registering dump-capable
devices.

BTW, this reminds me that the device should "know" that it's the
current dump device, so it can clear dumpdev if it disappears (e.g.
you 'camcontrol stop' the disk and remove it from the enclosure...)

> > c) the on-disk format will be as follows:
> Make it XML while we're at it ?  All it costs in the kernel is
> a bit more text in the printfs.

It's not hierarchical, and therefore won't benefit from being
expressed in XML.  It'll just add unnecessary complexity to
savecore(1).

DES
-- 
Dag-Erling Smorgrav - des@ofug.org

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