Bug#490984: linux-image-2.6-686: / is busy causes EXT3-fs: INFO: recovery required on readonly filesystem
On Tue, 15 Jul 2008, Kingsley G. Morse Jr. wrote:
> Thanks for maintaining debian's kernel packages.
hmm how is the bug you reported related to the kernel?
please ask such support the next time on the debian user
mailing list.
> They're a remarkable technology in more ways than
> one.
>
> Here's how I duplicate the bug.
>
> 1.) $ shutdown -r now
>
> 2.) ctl-alt-F7
>
> 3.) look quickly for something like
>
> "mount: / is busy"
>
> 4.) After the system has rebooted, if the root
> filesystem is EXT3, look for
>
> EXT3-fs: INFO: recovery required on readonly filesystem.
>
> in /var/log/messages.
>
> If the root filesystem is EXT2, I get a long,
> slow fsck recovery.
>
>
> It seems to me that this can be partially
> explained by the shutdown command running a
> script named
>
> /etc/init.d/umountroot
>
> which calls the "mount" command to remount the
> root file system as read only.
>
> It fails, and complains that
>
> "/ is busy"
>
> Since the root file system wasn't cleanly
> unmounted, it'll be recovered during the next
> boot.
>
> I investigated other processes interfering with
> the root file system, without result.
>
> However, it seems that inserting
>
> "cat /proc/mounts"
>
> just before the (re)mount command in
>
> /etc/init.d/umountroot
>
> usually allows mount to complete.
>
> As an aside, the words "mount" and "remount" occur
> hundreds of times in the changelog for 2.6.26.
>
> Frankly, I'm a little worried about data
> corrutpion.
>
> Thanks,
> Kingsley
not reproducible here,
please use debian installer standard installs.
--
maks
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