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    SubjectRe: [dm-crypt] dm-crypt is broken and causes massive data corruption
    Date
    Alasdair G Kergon  <agk@redhat.com> wrote:
    >On Mon, May 08, 2006 at 07:20:12PM +0200, Tillmann Steinbrecher wrote:
    >> it's been many months that dm-crypt has been broken, and is known to
    >> cause massive data corruption.

    >So far there isn't much in the way of controlled experiments, but:
    >
    > All the reports agree the problem is independent of filesystem.
    >
    > One thread suggests only filesystem metadata is corrupted, not file
    > data, and wonders if something's going wrong with (unsupported) write
    > barriers.
    >
    > Another report said dm-crypt over raid5 failed while raid5
    > over dm-crypt worked.

    A data point:

    I'm running my /home on reiserfs3 over dm-crypt over lvm over raid5 for
    at least a year now, without any problems. Currently running 2.6.13.4
    (that's my "stable" work system...).


    Paul Slootman

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