Messages in this thread | | | From | (H. Peter Anvin) | Subject | Re: 2.2.0p6: autofs bug! unmountable filesystem | Date | 11 Jan 1999 18:02:07 GMT |
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Followup to: <Pine.LNX.3.96.990110214437.13411A-100000@ferret.lmh.ox.ac.uk> By author: Chris Evans <chris@ferret.lmh.ox.ac.uk> In newsgroup: linux.dev.kernel > > Hi, > > I can reproduce a autofs bug whereby the autofs filesystem cannot be > unmounted. > > It is simple: first mount the autofs filesystem. I have RH5.2 so to do > this I use /etc/rc.d/init.d/autofs start > > Now I mount my CD rom drive by doing cd /misc/cd > > This next step seems to break things. _Manually_ umount /misc/cd, rather > than letting autofs timeout (before doing the the cwd will need to be > moved from /misc/cd :-) > > Now, /misc cannot be unmounted, it is permanently reported as busy. Not > good. >
I actually suspect that if you re-mounted /misc/cd and let it time out it would let you umount /misc; the problem is that a umount of /misc/cd doesn't execute an rmdir() required to free up the pad directory. I will play around and see if there is a reasonable way to deal with this.
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