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Re: [Samba] Issues accessing ZFS-shares on Linux




I added one testshare /home/testijako and connected to it with the same
credentials as I would connect to ZFS-shares. Then I did the strace to
that particular PID and tried connecting to one ZFS-share. There was
indeed an error which might have something to do with this issue:

Line 2001: lstat("/tank/rex", 0x7fff1f6fb2c0)      = -1 ENOENT (No such
file or directory)

Im sure that folder exists (files have been omitted):
aurinko@punishedkorppu:~$ cd /tank/rex
aurinko@punishedkorppu:/tank/rex$ ls -hal
total 32M
drwxrwxrwx   12 rex     rex       20 Dec 24 19:09  .

Full stracefile can be found here:
https://pastebin.com/raw/i5BpVPuY


Jeremy Allison via samba kirjoitti 9.1.2018 klo 0:57:
> On Mon, Jan 08, 2018 at 11:06:37PM +0200, John Doe via samba wrote:
>> Hi,
>>
>> I am having a really strange problem with my Samba shares on Debian
>> Buster. None of the users can access any shares, which reside on
>> ZFS-filesystem. Any other share works just fine. For example, if I
>> create a normal folder to /home with same permissions and replace a
>> ZFS-share with that, it works fine.
>>
>> When accessing any ZFS-shares the following error is recorded:
>> Jan 08 22:39:56 punishedkorppu smbd[27893]: [2018/01/08 22:39:56.075343,
>>  0] ../source3/smbd/service.c:774(make_connection_snum)
>> Jan 08 22:39:56 punishedkorppu smbd[27893]:   canonicalize_connect_path
>> failed for service rex, path /tank/rex
>>
>> The system in use is Debian Buster with Samba 2:4.7.3+dfsg-1 and ZoL
>> 0.7.4-1 from Debian repo. Selinux is disabled and apparmor too.
>>
>> Any ideas what might be wrong with this setup?
> 
> Do an strace. canonicalize_connect_path() is a very simple
> function, but my guess is the call to SMB_VFS_REALPATH()
> is failing for some reason on your ZFS filesystem.
> 

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