[Bug 34247] Re: Trash always empty.

[Robert Lange]

I have found some more information, although I don't really have time
now to do more.

In the file gnome-vfs-unix-mounts.c there are several different
possibilities based on what type of unix you have and how it stores
mount information. In particular for Ubuntu the HAVE_MNTENT_H ifdef is
used, so the code looks in the file /proc/mounts. The code grabs the
first entry for each mountpoint and uses its listed filesystem, even if
that isn't the correct listing. This is the comment in the function
_gnome_vfs_get_current_unix_mounts:

-----

ignore any mnt_fsname that is repeated and begins with a '/'

We do this to avoid being fooled by --bind mounts, since these have the
same device as the location they bind to. Its not an ideal solution to
the problem, but its likely that the most important mountpoint is first
and the --bind ones after that aren't as important. So it should work.

-----

In this case, the first mount point listing for / has the 'rootfs'
filesystem type listed, whereas the second listing has the correct
'ext3' filesystem type. As an experiment, I introduced some code to
ignore any entry with a filesystem type of 'rootfs' but this didn't work
correctly either.

At this point I won't have time to work on this for a while, but I felt
like I should document what I had found here so when I get some time, I
can pick up where I left off, or someone else can.

-- 
Trash always empty.
https://launchpad.net/bugs/34247