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Re: ACL's and samba 2.2

To: John Trostel <jtrostel@xxxxxxxxxx>
Subject: Re: ACL's and samba 2.2
From: Mark Bradbury <mark.bradbury@xxxxxxxxxx>
Date: Mon, 23 Apr 2001 08:17:27 +0930
Cc: linux-xfs@xxxxxxxxxxx
In-reply-to: <XFMail.20010420105916.jtrostel@xxxxxxxxxx>
References: <20010420133115.D20277@xxxxxxxxxx> <XFMail.20010420105916.jtrostel@xxxxxxxxxx>
Sender: owner-linux-xfs@xxxxxxxxxxx
On Fri, Apr 20, 2001 at 10:59:16AM -0400, John Trostel wrote:
> I see from your other e-mail that you did find the libabcl.a library. 
> Currently, I am seeing some "interesting" behavior with XFS ACLs in the new
> Samba 2.2 though.
> 
> The stress test I am doing takes 53 1.6MB files and copies them (XCOPY) from a
> WinNT box to a network attached XFS Samba share into several different
> directories and then rinses, lathers and repeats... Unfortunately, the disk
> space does not seem to be released when the files are being overwritten. 
> Eventually the disk fills up and the process errors out.  I'll be working on
> this today and post an update when I figure it out.
> 
> Now... here's the real interesting part:
> 
> 1. The test fails (runs out of disk space) after about 8 iterations of writing
> about 210 MB of data to a 2 GB XFS partition with --with-acl-support
> 
> 2. The test ALSO fails after about 8 iterations if I reformat the partition
> (mkfs -text2 /dev/hda8) to be EXT2 with --with-acl-support
> 
> 3. The test SUCCEEDS with the ext2 partition and no --with-acl-support
> 
> I am planning on doing the following:
> 
> 1. I just zeroed out the partition (cp /dev/zero /dev/hda8) and will reformat
> as ext2 again and try with --with-acl-support.
> 
> 2. I will try doing the same procedure without Samba 'in the loop'.
> 
> I suspect that something in the --with-acl-support that gets turned on with 
> XFS
> is not clearing inodes as it should so I'll look real carefully at both
> lib/sysacls.c and smbd/posix_acls.c for leaks and non-released resources.
> 
> Mark.... could you try this stress test with your XFS system and see if you 
> get
> the same behavior?
> 
> 
> -- 
> John M. Trostel
> Linux OS Engineer
> Connex
> jtrostel@xxxxxxxxxx
> 
Same thing here also if you create the file in linux and then view the security 
in NT the same thing will happen.
-- 
-
Mark Bradbury                     Email:     Mark.Bradbury@xxxxxxxxxx
Systems Engineer                  SMS Email: 61417860591@xxxxxxxxxxxxxxxxxxxxx
Information Technology Services   Phone:     +61 8 89466969
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