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    SubjectRe: Analyzed/Solved: Booting 2.6.30-rc2-git7 very slow
    On Wed, Apr 29, 2009 at 04:18:45PM +0200, Mike Galbraith wrote:
    > > /etc/fstab, perhaps? That definitely looks like two mount(2) had to
    > > have been done to cause that...
    >
    > Yeah, but how does one go about doing that?
    >
    > Using mount -f, I can convince mount to succeed, but I still have only
    > one entry in /proc/mounts, despite what my mount binary imagines.

    Huh?
    -f Causes everything to be done except for the actual system call;
    if it's not obvious, this ``fakes'' mounting the file system.
    This option is useful in conjunction with the -v flag to deter-
    mine what the mount command is trying to do. It can also be used
    to add entries for devices that were mounted earlier with the -n

    What are you talking about?

    The interesting part is why mount(2) doesn't fail with -EBUSY on that
    overmounting. Is there anything else mounted on /sys? That, or any
    interesting patches applied to the tree (fs/sysfs/mount.c, fs/namespace.c)


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