On Fri, 2020-01-31 at 01:09 +0100, Marc Lehmann wrote: > On Thu, Jan 30, 2020 at 11:50:32PM +0000, Mike Gabriel < > sunwea...@debian.org> wrote: > > This seems like something to be discussed upstream. I Cc:ed Ian > > Kent, maybe > > he has some 2? to add. > > Cool! > > In the meantime, I digged a bit more, and it seems that it is because > with > misc-device support, autofs uses the AUTOFS_DEV_IOCTL_ISMOUNTPOINT > ioctl > to check whether something is a mountpoint, which returns 1, which > causes > the code in umount_multi to decude it cannot be symlink and > unmounting it. > > Indeed, rm /dev/autofs before starting autofs makes it partially work > (the > target dir is not unmounted, but the entry is still gone without > ghosting). > > Upstream probably already knows this, of course.
Upstream doesn't know about this, ;) The behaviour is not correct and needs to be fixed. Sounds like I have enough information to duplicate the problem so I'll have a look see. Thanks for the report Ian
