rsync - Dec 2008 - DO NOT REPLY [Bug 5939] New: rsync: delete of stat xattr failed for ... (in backup): Operation not permitted (1)

https://bugzilla.samba.org/show_bug.cgi?id=5939

           Summary: rsync: delete of stat xattr failed for ... (in backup):
                    Operation not permitted (1)
           Product: rsync
           Version: 3.0.4
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: core
        AssignedTo: wayned@samba.org
        ReportedBy: paul@cullum.ca
         QAContact: rsync-qa@samba.org


I've been having a problem rsync (3.0.3 and I also tried 3.0.5pre2). 
I'm
rsyncing to an rsync daemon with "fake super = yes" in the rsyncd.conf
file and
I get many errors like this:

This ONLY happens to symlinks.  Most symlinks are fine. Most of these are
either broken symlinks or symlinks that happen to have a different owner than
what they link to.  I thought this might be the root of the problem so I
created a small test for new symlinks with these attributes but my test worked
without a problem.  Also one of these errors is for a valid symlink that is
owned by the same owner as what it points to and I've been unable to do
anything to fix the error.

Is there something I can do to increase the logging for the daemon so that I
can't figure out exactly what the problem is?

And... yes the file system was mounted with user_xattr.  "fake super"
seems to
work just fine for me with the exception of these errors.

2008/12/04 13:53:15 [1818] rsync: delete of stat xattr failed for
"home/jtest/public_html" (in backup): Operation not permitted (1)
2008/12/04 13:53:15 [1818] rsync: delete of stat xattr failed for
"home/testuser/IDrive" (in backup): Operation not permitted (1)
2008/12/04 13:53:15 [1818] rsync: delete of stat xattr failed for
"home/testuser/KDrive" (in backup): Operation not permitted (1)
2008/12/04 13:53:15 [1818] rsync: delete of stat xattr failed for
"home/testuser/test" (in backup): Operation not permitted (1)
2008/12/04 13:53:15 [1818] rsync: delete of stat xattr failed for
"home/testuser/daycare" (in backup): Operation not permitted (1)
2008/12/04 13:53:15 [1818] rsync: delete of stat xattr failed for
"home/testuser/hosts" (in backup): Operation not permitted (1)
2008/12/04 13:53:15 [1818] rsync: delete of stat xattr failed for
"home/testuser/house.example.com" (in backup): Operation not permitted
(1)
2008/12/04 13:53:15 [1818] rsync: delete of stat xattr failed for
"home/testuser/public_html" (in backup): Operation not permitted (1)
2008/12/04 13:53:15 [1818] rsync: delete of stat xattr failed for
"home/testuser/.kde/cache-vex.example.com" (in backup): Operation not
permitted
(1)
2008/12/04 13:53:15 [1818] rsync: delete of stat xattr failed for
"home/testuser/.kde/socket-vex.example.com" (in backup): Operation not
permitted (1)
2008/12/04 13:53:15 [1818] rsync: delete of stat xattr failed for
"home/testuser/.kde/tmp-vex.example.com" (in backup): Operation not
permitted
(1)
2008/12/04 13:53:15 [1818] rsync: delete of stat xattr failed for
"home/testuser/amazon/startupscript.sh" (in backup): Operation not
permitted
(1)
2008/12/04 13:53:18 [1818] rsync: delete of stat xattr failed for
"var/www/hosts/house.example.com" (in backup): Operation not permitted
(1)
2008/12/04 13:53:18 [1818] rsync: delete of stat xattr failed for
"var/www/hosts/mail.example.com" (in backup): Operation not permitted
(1)
2008/12/04 13:53:18 [1818] rsync: delete of stat xattr failed for
"var/www/hosts/example.com/docs" (in backup): Operation not permitted
(1)
2008/12/04 13:53:18 [1818] rsync: delete of stat xattr failed for
"var/www/hosts/house.example.com/docs/mandriva-one-2007-kde1.iso" (in
backup):
Operation not permitted (1)
2008/12/04 13:53:18 [1818] rsync: delete of stat xattr failed for
"var/www/hosts/mail.example.com2/docs/images" (in backup): Operation
not
permitted (1)
2008/12/04 13:53:18 [1818] rsync: delete of stat xattr failed for
"var/www/hosts/test2.example.com/docs/preschool" (in backup):
Operation not
permitted (1)
2008/12/04 14:06:22 [1842] rsync: delete of stat xattr failed for
"home/testuser/IDrive" (in backup): Operation not permitted (1)
2008/12/04 14:06:22 [1842] rsync: delete of stat xattr failed for
"home/testuser/KDrive" (in backup): Operation not permitted (1)
2008/12/04 14:06:23 [1842] rsync: delete of stat xattr failed for
"home/testuser/amazon/startupscript.sh" (in backup): Operation not
permitted
(1)
2008/12/04 14:06:26 [1842] rsync: delete of stat xattr failed for
"var/www/hosts/mail.example.com2/docs/images" (in backup): Operation
not
permitted (1)
2008/12/04 14:10:14 [1847] rsync: delete of stat xattr failed for
"home/testuser/amazon/startupscript.sh" (in backup): Operation not
permitted
(1)
2008/12/04 14:12:05 [1852] rsync: delete of stat xattr failed for
"home/testuser/amazon/startupscript.sh" (in backup): Operation not
permitted
(1)
2008/12/04 15:43:36 [1891] rsync: delete of stat xattr failed for
"home/testuser/amazon/startupscript.sh" (in backup): Operation not
permitted
(1)
2008/12/04 15:45:07 [1896] rsync: delete of stat xattr failed for
"home/testuser/amazon/startupscript.sh" (in backup): Operation not
permitted
(1)
2008/12/04 15:45:18 [1901] rsync: delete of stat xattr failed for
"home/testuser/amazon/startupscript.sh" (in backup): Operation not
permitted
(1)
2008/12/04 15:46:41 [1906] rsync: delete of stat xattr failed for
"home/testuser/amazon/startupscript.sh" (in backup): Operation not
permitted
(1)


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------- Comment #1 from paul@cullum.ca  2008-12-04 13:52 CST -------
Well I've managed to increase verbosity a little bit and tried rsyncing only
one of the symlinks that was having this problem:

...
recv_file_name(home/testuser/amazon/startupscript.sh)
received 1 names
[generator] flist start=7, used=1, low=0, high=0
[generator] i=7 4 home/testuser/amazon/startupscript.sh mode=0120777 len=35
uid=1000 gid=1000 flags=0
recv_file_list done
recv_generator(home/testuser/amazon,6)
send_files(6, /home/testuser/amazon)
recv_generator(home/testuser/amazon/startupscript.sh,7)
rsync: delete of stat xattr failed for
"home/testuser/amazon/startupscript.sh"
(in backup): Operation not permitted (1)
set modtime of home/testuser/amazon/startupscript.sh to (1228399898) Thu Dec  4
14:11:38 2008
set uid of home/testuser/amazon/startupscript.sh from 0 to 1000
set gid of home/testuser/amazon/startupscript.sh from 0 to 1000
home/testuser/amazon/startupscript.sh
send_files(7, /home/testuser/amazon/startupscript.sh)
touch_up_dirs: home/testuser (1)
generate_files phase=1
send_files phase=1


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wthrowe at mit.edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |wthrowe at mit.edu




------- Comment #2 from wthrowe at mit.edu  2009-07-14 21:59 CST -------
I also see this bug (using --fake-super), including in a nightly build last
week.  I'm actually getting this error on all symlinks I tested (tried
broken
and working to both a file and a directory, didn't try different owners).  I
think this is because I'm using an ext3 file system, and it doesn't
support
xattrs on symlinks.

I notice that in the code, usually when an xattr change is attempted, if it
fails on a symlink with EPERM, the failure is ignored, but that this check is
not performed for the "delete of stat xattr" change.  Adding a check
makes the
warnings disappear.  I'm not sure if there is a reason for the absence of
the
check, but it seems to cause errors even when there should not be any xattrs
set on the link (because the get_stat_xattr function claims there is an xattr
there when it can't read the xattrs).

Anyway, I've written a simple patch adding the check for EPERM on a symlink.


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------- Comment #3 from wthrowe at mit.edu  2009-07-14 22:03 CST -------
Created an attachment (id=4418)
 --> (https://bugzilla.samba.org/attachment.cgi?id=4418&action=view)
Patch to ignore "delete of stat xattr" failures on symlinks


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wayned at samba.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED




------- Comment #4 from wayned at samba.org  2011-02-22 09:10 CST -------
In the latest code, xattrs are turned off for symlinks on Linux.


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