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Date: Mon, 09 Jan 2012 11:21:32 +0200
From: Nikos Vassiliadis <nvass@gmx.com>
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To: Don Lewis <truckman@FreeBSD.org>
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Cc: arch@FreeBSD.org, adrian@FreeBSD.org, alfred@FreeBSD.org
Subject: Re: [patch] allow crash dumps to Linux swap partitions
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On 1/9/2012 11:11 AM, Don Lewis wrote:
> On  9 Jan, Adrian Chadd wrote:
>> .. doesn't linux swap have some metadata somewhere?
>
> Darned if I know, but it doesn't seem to care about FreeBSD swap data
> overwriting its swap partition.

Linux will not use the swap partition without the metadata. And
these metadata are located to the start of the partition, that
is, dumping core there will surely destroy them.

Perhaps you can add a warning in the dumpon manual page, that the
swap metadata must be re-created after a coredump?

Nikos