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    SubjectRe: [Q] FAT driver enhancement
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    Mike Fedyk <mfedyk@matchmail.com> writes:

    > On Tue, Apr 02, 2002 at 10:27:52PM +0900, OGAWA Hirofumi wrote:
    > > Helge Hafting <helgehaf@aitel.hist.no> writes:
    > >
    > > > OGAWA Hirofumi wrote:
    > > > >
    > > > > Jos Hulzink <josh@stack.nl> writes:
    > > > > > Questions:
    > > > > >
    > > > > > 1) How do you think about the checking of the FAT tables ? It definitely
    > > > > > will slow down the mount.
    > > > >
    > > > > Unfortunately if FAT table has bad sector, FAT tables may not be the
    > > > > same.
    > > >
    > > > And then you don't want to mount unless you know what you
    > > > are doing. And those knowing what they are doing can be bothered
    > > > to use some kind of "force" option in this case. Or perhaps an
    > > > option that selects which FAT to trust.
    > >
    > > I mean I/O error, not data damage.
    >
    > It is the block layer's responsibility to retry such soft errors and recover.

    Yes.

    > Probably the best you can do, is retry the read a few times if there
    > is an error reported, and then fail if it persists.

    Umm, there is a `copy of FAT table' for this kind of error. If the I/O
    error occurs, the FAT driver should use the other FAT table.
    --
    OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
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