Bug 42111 - rsync hangs at end of sync
Summary: rsync hangs at end of sync
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: rsync   
(Show other bugs)
Version: 7.1
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Bill Nottingham
QA Contact: Aaron Brown
Depends On:
TreeView+ depends on / blocked
Reported: 2001-05-24 11:20 UTC by Jeremy Sanders
Modified: 2014-03-17 02:20 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2001-11-30 21:03:39 UTC
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)

Description Jeremy Sanders 2001-05-24 11:20:27 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux 2.4.2-2 i686; en-US; rv:0.8.1+)

Description of problem:
We mirror the root partition of a machine onto a partition using the rsync
command. The command hangs at the end of the run:

[root@xpc1 jss]# rsync -raHxv --delete / /root_backup/
building file list ... done
[hangs here]

looking to see what's running....

[root@xpc1 jss]# ps auxw|grep rsync
root     10228  1.6  2.4 13512 12576 pts/6   S    12:14   0:04 rsync -raHxv
--delete / /root_backup/
root     10229  3.7  6.2 32800 31876 pts/6   S    12:14   0:11 rsync -raHxv
--delete / /root_backup/
root     10231  0.0  6.2 32800 31884 pts/6   S    12:16   0:00 rsync -raHxv
--delete / /root_backup/

[root@xpc1 jss]# strace -p 10228
select(0, NULL, NULL, NULL, {0, 10000}) = 0 (Timeout)
gettimeofday({990703222, 596410}, NULL) = 0
wait4(10229, 0xbfffdd60, WNOHANG, NULL) = 0
gettimeofday({990703222, 596485}, NULL) = 0
gettimeofday({990703222, 596508}, NULL) = 0
select(0, NULL, NULL, NULL, {0, 20000}) = 0 (Timeout)
gettimeofday({990703222, 616448}, NULL) = 0
select(0, NULL, NULL, NULL, {0, 1000})  = 0 (Timeout)
gettimeofday({990703222, 626474}, NULL) = 0
wait4(10229, 0xbfffdd60, WNOHANG, NULL) = 0
[lots more....]

Stracing PID 10229 fixes the hang!!!!

How reproducible:

Steps to Reproduce:
1. Don't know - now the rsync has completed properly once, it now works
every time.

Additional info:

Comment 1 Jeremy Sanders 2001-06-13 08:54:33 UTC
Discussion on Linux-kernel, see

The problem appears rsyncing a kernel tree on a local disk to a local disk.

This in _not_ an ssh problem!

Comment 2 Jeremy Sanders 2001-06-19 09:07:44 UTC
This bug appears to be fixed with the following patch:


Comment 3 Bill Nottingham 2001-06-19 21:05:45 UTC
Added in 2.4.6-3; thanks!

Comment 4 Andreas J. Bathe 2001-06-21 05:03:35 UTC
We also try to mirror nearly 63 GBytes from a RAID 5 SCSI system to a local IDE
harddisk, the dist is RH 6.2 with 1 GB RAM, so memory or ssh shouldn't be the
problem. I also tried rsync 2.6.4 with the ~wayne/rsync-nohang.patch applied,
but the process still hangs in an undeterministic way.

In the rsync mailing list I read this email
http://www.mail-archive.com/rsync@lists.samba.org/msg01494.html which stats that
the verbose switch can be responsible for some kind of hangs. Since I left out
the -v switch the script with rsync -Ha --delete --stats --timeout=10800
--delete-excluded --exclude-from=$excludefile /export/ /export-backup runs fine.

We think that the verbose option brings rsync into a dead lock situation when
the filelist will be very big (ours is about half a million files on a very fast
raid system. So I think you should this bug be open and not resolved.


Comment 5 Andreas J. Bathe 2001-07-16 21:31:02 UTC
Well, after nearly 4 weeks of testing the 2.4.6 version with the
~wayne/rsync-nohang.patch applied, the hang hasn't  appeared again with or
without the -verbose option. I would like to ask you to release this rsync
version as an official errata for 6.2 and above. Thanx!

Comment 6 Simon Matter 2001-08-29 06:29:22 UTC
I have experienced rsync problems yesterday for the first time in my life. It's
not exactly on RedHat Linux but I guess it's related so just let me describe
what happend.
I modified some file trees on my main ftp server (RH 6.1). What I did exactly
was to put some directories from the SAP DB 7.3 distribution CD - which is GPL -
on my ftp server containing hundreds of sudirectories and files. I then wanted
to rsync the ftp onto my laptop (Mandrake 7.2 on ReiserFS) by mounting the ftp
volume and then doing a rsync -av --delete /mnt/nfs/unix/Linux
/home/ftp/pub/software. The command was hanging several times. I went home and
wanted to rsync over to my server which is SGI XFS RedHat 7.1 with the
RH-XFS-2.4.3 kernel and kdb enabled. After syncing some files I was dropped into
I have right now tried the rsync from RH6.1 to MDK7.2 without the -v option and
it works!!! I will remove the verbose option from my scripts now.

Comment 7 Bill Nottingham 2001-11-30 20:52:48 UTC
Does 2.5.0 (http://people.redhat.com/notting/rsync/) work for you?

Comment 8 Bill Nottingham 2002-11-25 21:55:29 UTC
closing, no response

Comment 9 Jeremy Sanders 2002-11-26 09:38:41 UTC
Sorry - I obviously forgot to reply last year! I've been using the RH 7.3 rsync
with no problems for some time now.

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