On an ostree system, / is the same filesystem as /sysroot. The gunixmounts.c finds /sysroot first, then ignores / as a bind mount.

This means that when we try to find the filesystem for /home/<user>/.local/Trash

We look:

 /home/<user>/.local/Trash
 /home/<user>/.local
 /home/<user>
 /home
 /

and don't find a mount at any of these, there is an assertion failure in daemon/trashlib/trashwatcher.c:119:find_mount_entry_for_file().

http://build.gnome.org/continuous/buildmaster/builds/2016/09/13/53/smoketest-classic/work-gnome-continuous-x86_64-runtime/journal.txt

We actually, should have followed a symlink and looked at:

 /home/<user>/.local/Trash
 /home/<user>/.local
 /home/<user>
 /home => /var/home
 /var
 /

But it woudn't have fixed the issue. I'm not quite sure what the fix is:

 * Making the gunixmounts.c code consider / rather than /sysroot to be the "real root" would superficially fix it, but doesn't actually help, because the bind mounts don't have to have that structure - a filesystem could be mounted at /a and /b and not at /.
 * Not trying to detect and remote bind mounts in gunixmounts.c would fix this, but might confuse other code.

Could just not use gunixmounts.c t all here and directly parse /proc/mounts to look for nfs mounts, but that would hurt portability.