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    Subjectresume before mounting root [diff against vanilla 2.4.9]
    On Wed, 26 Sep 2001, Albert D. Cahalan wrote:

    > Pavel Machek writes:
    > > [Albert Cahalan]
    > >> Solution for the filesystem problems:
    > >>
    > >> 1. at suspend, basically unmount the filesystem (keep the mount tree)
    > >> 2. at resume, re-validate open files
    > >
    > > Wrong solution. ;-).
    > >
    > > Solution to filesystem problems: at suspend, sync but don't do
    > > anything more. At resume, don't try to mount anything (so that you
    > > don't replay transactions or damage disk in any other way).
    > That is totally broken, because I may mount the disk in between
    > the suspend and resume. I might even:
    > 1. boot kernel X
    > 2. suspend kernel X
    > 3. boot kernel Y
    > 4. suspend kernel Y
    > 5. resume kernel X
    > 6. suspend kernel X
    > 7. resume kernel Y
    > 8. suspend kernel Y
    > 9. goto #5
    > You really have to close the logs and mark the disks clean
    > when you suspend. The problems here are similar the the ones
    > NFS faces. Between the suspend and resume, filesystems may be
    > modified in arbitrary ways.

    I missed the rest of the thread, but if you are talking about what I think
    you are talking about, I'll go <AOL>Me too</AOL>

    A horrible combination of accidents with scripts that set lilo to boot
    to the hibernated partition if last suspended, and an apparent BIOS bug
    that allowed me to boot out of a hibernated partition for a second
    time meant that my laptop came out of regular hibernation mode (as
    opposed to using swsusp for "hibernation") 2 months
    after I originally suspended the machine. After I had gone through
    numerous kernel upgrades and reboots, and after I had partially
    repartioned the drive. Needless to say, there were a number of partitions
    that were toast after this issue. Fortunately, I had made a backup of my
    drive (including me thesis!) only a week beforehand, and /home was fine.
    Not bad concidering the last backup was from 3 months ago!

    TimC --

    This is a dirty hack! It might burn your PC and kill your cat!
    -- mpg123.c source

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