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    SubjectRe: 2.6.5-rc1-mm2 and direct_read_under
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    On Fri, 2004-03-19 at 12:05, Daniel McNeil wrote:
    > Can't type this morning -- 2.6.5-rc1-mm2 is what I ran on.
    > =============
    >
    > Daniel
    > On Fri, 2004-03-19 at 08:49, Daniel McNeil wrote:
    > > I re-ran direct_read_under test (6 copies) on 2.6.4-rc1-mm2:
    > >
    > > ext3 failed within 2 hours.
    > >
    > > ext2 ran overnight without errors.
    > >
    [ ... a slightly different kernel, but numbers are probably good ]

    > > >
    > > > Still have the data:
    > > > 63 pages (258048 bytes)
    > > > 90 pages (368640 bytes)
    > > > 139 pages (569344 bytes)
    > > > 30 pages (122880 bytes)
    > > > 87 pages (356352 bytes)
    > > >
    > >

    That seems like a lot of pages for a small race, it feels like we have a
    bigger problem. If nobody else has ideas, and you've got an available
    disk for mkreiserfs, could I talk you into trying with reiserfs
    data=ordered?

    ftp.suse.com/pub/people/mason/patches/data-logging/experimental/2.6.4

    (use series.mm for a list of files to apply to 2.6.5-rc-mm)

    data=ordered is the default with those patches, so just mkreiserfs and
    mount. reiserfs is using a different writepage and different code to
    submit the ordered buffers, so you'll be using completely different code
    paths.

    I'll try to get some time on an 8way here for some tests as well.

    -chris


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