.zfs/snapshot: Bad file descriptor

[Stefan Bethke]

Am 03.03.2009 um 15:58 schrieb Peter Schuller:

>> well, I have no idea. This issue persists for me over 1.5 years.
>> If you want file a PR with all the stuff. I've mailed couple of times
>> this list with pjd in copy, to no avail.
>
> Sorry if I'm missing something, but why is this even expected to work?
> If you don't want the .zfs directories, should you not turn off its
> use by setting the appropriate option on the fs?
>
> What is the expected result of rm -rf:ing the .zfs directory?

No idea (I personally would expect a permission denied or similar,  
since it's a virtual dir), but the main issue is that snapshot is no  
longer accessible. Trying to ls .zfs you usually get the same error  
message Randy posted; cf. my thread here on -fs and on -current from a  
couple weeks back.

Interestingly enough, there doesn't seem to be a PR yet, or at least I  
can't find it.

My guess is that the automounting code is getting confused sometimes,  
and nixes some part of the snapshot vnode while unmounting a snapshot.  
This in turn leads to a panic on unmounting the containg ZFS.


Stefan

-- 
Stefan Bethke <stb at lassitu.de>   Fon +49 151 14070811