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    SubjectRe: dm-crypt barrier support is effective

    On 12/01/2010 08:34 PM, Jon Nelson wrote:
    > Perhaps this is useful: for myself, I found that when I started using
    > 2.6.37rc3 that postgresql starting having a *lot* of problems with
    > corruption. Specifically, I noted zeroed pages, corruption in headers,
    > all sorts of stuff on /newly created/ tables, especially during index
    > creation. I had a fairly high hit rate of failure. I backed off to
    > and have *zero* problems (in fact, prior to 2.6.37rc3, I had
    > never had a corruption issue with postgresql). I ran on 2.6.36 for a
    > few weeks as well, without issue.
    > I am using kcrypt with lvm on top of that, and ext4 on top of that.

    With unpatched dmcrypt (IOW with Linus' git)? Then it must be ext4 or
    dm-core problem because there were no patches for dm-crypt...

    Anyway, thanks for hint how to reproduce it.


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