[patch] allow crash dumps to Linux swap partitions

Nikos Vassiliadis nvass at gmx.com
Mon Jan 9 09:21:42 UTC 2012


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


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