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    SubjectRe: Analyzed/Solved: Booting 2.6.30-rc2-git7 very slow
    On Wed, Apr 29, 2009 at 01:17:55AM -0700, Andrew Morton wrote:

    > > > > Questions remains: was this intentional? It breaks existing userspace and should therefore be considered a regression - right? On the other hand, it will never be a problem for RHEL-4/5 kernels, unless the change in 2.6.29 gets backported. Any ideas?
    > > >
    > > > afaik that was unintentional and was probably a mistake.
    > > >
    > > > I wonder how we did that.
    > >
    > > <paste>
    > > > [hotplug]# grep sysfs /proc/mounts
    > > > none /sys sysfs rw,relatime 0 0
    > > > /sys /sys sysfs rw,relatime 0 0
    > >
    > > ___(I wonder how the heck that is accomplished)
    >
    > Beats me. I'm not seeing likely changes in fs/proc/base.c or around
    > show_mountinfo(). Maybe sysfs broke in an ingenious way. (hopefully
    > cc's viro).

    Er... Somebody mounting sysfs twice? From some init script and from
    /etc/fstab, perhaps? That definitely looks like two mount(2) had to
    have been done to cause that...


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