[GRLUG] weird mount thing

[Michael Mol]

On Mon, Mar 7, 2011 at 10:18 AM, John-Thomas Richards <jtr at jrichards.org> wrote:
> I attempted to unmount something earlier and it wouldn't unmount.  When
> I did a `mount' I received this along with the usual stuff I expect to
> see:
>
> /dev/sda6 on /home type ext3 (rw,commit=0,commit=600,commit=0,commit=600,commit=0,commit=600,commit=0,commit=600,commit=0,commit=600,commit=0,commit=600,commit=0,commit=600,commit=0,commit=600,commit=0,commit=600,commit=0,commit=600,commit=0,commit=600,commit=0,commit=600,commit=0,commit=600,commit=0,commit=600,commit=0,commit=600,commit=0,commit=0,commit=0,commit=600,commit=0,commit=600,commit=0,commit=600.......
>
> The `commit=0,commit=600' repeats many times.  I've never seen this
> before.  Any ideas why I'm getting this?  None of the other mount points
> do this (well, / shows `/dev/sda5 on / type ext3
> (rw,errors=remount-ro,commit=0)').  Should I be concerned about
> something?

That's clearly a bug somewhere. Even if there's a hardware issue
somewhere, something would likely need to be screwed up in code for
that kind of iterative listing error. You should report it to your
distro's bugtracker for the package owning mount/umount.

I'd include:

* normal and 'strace' output for:
** mount
** umount /home
* any seemingly-relevant lines in syslog in proximity to when that
mount point was mounted, and  the same in proximity to when you
attempted to unmount
* The output of 'file -s /dev/sda6'.

Finally, I'd try running fsck on the /dev/sda6, possibly from a
different machine, after running smart tests on the drive, and include
the output from those.

-- 
:wq

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