samba-bugs at samba.org
2009-Nov-16 03:08 UTC
DO NOT REPLY [Bug 6896] New: Copy to nfs mounted partitions fails - RHEL 5.4
https://bugzilla.samba.org/show_bug.cgi?id=6896
Summary: Copy to nfs mounted partitions fails - RHEL 5.4
Product: rsync
Version: 2.6.8
Platform: x64
OS/Version: Linux
Status: NEW
Severity: major
Priority: P3
Component: core
AssignedTo: wayned at samba.org
ReportedBy: simon at darkmere.gen.nz
QAContact: rsync-qa at samba.org
I am running RHEL 5.4 as both client and server. The server is exporting
a partition to client. I am attempting to rsync local files on the client
to the NFS mounted partition. This appears to be failing with the RHEL 5.4
upgrade ( from RHEL 5.3, was working ok then). I strongly suspect this is might
be related to O_EXEL (see http://lwn.net/Articles/251012/ ) as we were getting
similar problems with another application.
$ rsync --version
rsync version 2.6.8 protocol version 29
The local (source) directory
$ ls -l crontab
-rw-rw-r-- 1 webmastr webmastr 2681 Nov 16 16:00 crontab
The destination:
$ mount
nfs_server:/wwwroot on /export/www/wwwroot type nfs4
(rw,noatime,bg,retrans=8,addr=172.22.0.12)
$ ls -la /export/www/wwwroot/live/data/test/
total 16
drwxr-xr-x 2 webmastr webmastr 4096 Nov 16 15:58 ./
drwxr-xr-x 6 webmastr webmastr 4096 Nov 16 15:44 ../
Works okay with normal copy.
$ cp -v crontab /export/www/wwwroot/live/data/test/
`crontab' -> `/export/www/wwwroot/live/data/test/crontab'
$ ls -al /export/www/wwwroot/live/data/test/
total 24
drwxr-xr-x 2 webmastr webmastr 4096 Nov 16 16:01 ./
drwxr-xr-x 6 webmastr webmastr 4096 Nov 16 15:59 ../
-rw-rw-r-- 1 webmastr webmastr 2681 Nov 16 16:01 crontab
$ rm /export/www/wwwroot/live/data/test/crontab
Doesn't when I use rsync.
$ rsync crontab /export/www/wwwroot/live/data/test/
rsync: mkstemp "/export/www/wwwroot/live/data/test/.crontab.Tb0UDW"
failed:
Permission denied (13)
rsync error: some files could not be transferred (code 23) at main.c(892)
[sender=2.6.8]
$ ls -al /export/www/wwwroot/live/data/test/
total 20
drwxr-xr-x 2 webmastr webmastr 4096 Nov 16 16:02 ./
drwxr-xr-x 6 webmastr webmastr 4096 Nov 16 15:59 ../
-r-x--xr-T 1 webmastr webmastr 0 Dec 26 1970 .crontab.Tb0UDW*
NOTE the actual data of the file seems to change but is almost always several
years into the past.
Running with more debugging:
$ rsync -vvvvv crontab /export/www/wwwroot/live/data/test/
cmd= machine= user= path=/export/www/wwwroot/live/data/test/
cmd[0]=. cmd[1]=/export/www/wwwroot/live/data/test/
(Client) Protocol versions: remote=29, negotiated=29
(Server) Protocol versions: remote=29, negotiated=29
note: iconv_open("UTF-8", "UTF-8") succeeded.
[sender] make_file(crontab,*,2)
server_recv(2) starting pid=29535
[sender] i=0 <NULL> crontab mode=0100664 len=2681 flags=0
send_file_list done
file list sent
send_files starting
recv_file_name(crontab)
received 1 names
[receiver] i=0 1 crontab mode=0100664 len=2681 flags=0
recv_file_list done
get_local_name count=1 /export/www/wwwroot/live/data/test/
recv_files(1) starting
generator starting pid=29535 count=1
delta-transmission disabled for local transfer or --whole-file
recv_generator(crontab,0)
send_files(0, crontab)
count=0 n=0 rem=0
send_files mapped crontab of size 2681
calling match_sums crontab
crontab
sending file_sum
false_alarms=0 hash_hits=0 matches=0
sender finished crontab
generate_files phase=1
send_files phase=1
recv_files(crontab)
rsync: mkstemp "/export/www/wwwroot/live/data/test/.crontab.LrB2Oc"
failed:
Permission denied (13)
data recv 2681 at 0
got file_sum
recv_files phase=1
generate_files phase=2
send_files phase=2
send files finished
total: matches=0 hash_hits=0 false_alarms=0 data=2681
recv_files phase=2
generate_files phase=3
recv_files finished
generate_files finished
client_run waiting on 29535
sent 2769 bytes received 42 bytes 5622.00 bytes/sec
total size is 2681 speedup is 0.95
_exit_cleanup(code=0, file=main.c, line=892): entered
rsync error: some files could not be transferred (code 23) at main.c(892)
[sender=2.6.8]
_exit_cleanup(code=0, file=main.c, line=892): about to call exit(23)
$ ls -al /export/www/wwwroot/live/data/test/
total 24
drwxr-xr-x 2 webmastr webmastr 4096 Nov 16 16:03 ./
drwxr-xr-x 6 webmastr webmastr 4096 Nov 16 15:59 ../
-r-xr----T 1 webmastr webmastr 0 Dec 27 1970 .crontab.LrB2Oc*
-r-x--xr-T 1 webmastr webmastr 0 Dec 26 1970 .crontab.Tb0UDW*
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samba-bugs at samba.org
2009-Nov-16 03:26 UTC
DO NOT REPLY [Bug 6896] Copy to nfs mounted partitions fails - RHEL 5.4
https://bugzilla.samba.org/show_bug.cgi?id=6896 ------- Comment #1 from matt at mattmccutchen.net 2009-11-15 21:26 CST ------- IIUC, the upstream rsync project does not support 2.6.8 any more (i.e., the 3.0.0 daemon security fixes were officially backported only to 2.6.9), so unless you can reproduce the problem with a newer rsync, you may be better advised to bug Red Hat. That aside, to understand the issue, we would need to see strace output showing the mkstemp-related system calls leading up to the EACCES. The temporary file is somehow getting really weird permissions, and since NFS isn't so crisp about checking permissions only at file-open time, that could certainly explain the EACCES. -- Configure bugmail: https://bugzilla.samba.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the QA contact for the bug, or are watching the QA contact.
samba-bugs at samba.org
2010-Mar-17 07:30 UTC
DO NOT REPLY [Bug 6896] Copy to nfs mounted partitions fails - RHEL 5.4
https://bugzilla.samba.org/show_bug.cgi?id=6896
matt at mattmccutchen.net changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |WORKSFORME
------- Comment #2 from matt at mattmccutchen.net 2010-03-17 02:30 CST -------
Closing due to lack of response. Simon, feel free to reopen this if you can
provide strace output.
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samba-bugs at samba.org
2010-Mar-17 08:07 UTC
DO NOT REPLY [Bug 6896] Copy to nfs mounted partitions fails - RHEL 5.4
https://bugzilla.samba.org/show_bug.cgi?id=6896
simon at darkmere.gen.nz changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |CLOSED
------- Comment #3 from simon at darkmere.gen.nz 2010-03-17 03:07 CST -------
(In reply to comment #2)> Closing due to lack of response. Simon, feel free to reopen this if you
can
> provide strace output.
>
Apologies for not updating this earlier. The problem turned out to be with the
NFSV4 in the Redhat kernel:
https://www.redhat.com/security/data/cve/CVE-2009-3286.html
https://bugzilla.redhat.com/show_bug.cgi?id=524520
https://rhn.redhat.com/errata/RHSA-2009-1548.html
Not sure why I was still seeing the bug after the patch was released. Either my
system wasn't fully uptodate or dates are wrong somewhere.
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