rsync to a Samba/CIFS filessytem hangs

[Paul Slootman]

On Fri 15 Jul 2005, Robert Gasch wrote:
> 
> > The output from strace and lsof would be helpful.
> > However, my impression is that the CIFS filesystem is deadlocking
> > somewhere...
> 
> [root at www root]# lsof -p 16327
> COMMAND   PID USER   FD   TYPE     DEVICE    SIZE    NODE NAME
> rsync   16327 root  cwd    DIR       0,14       0   64419 /mnt/backup/backup_www
> rsync   16327 root  rtd    DIR        3,1    4096       2 /
> rsync   16327 root  txt    REG        3,8  558667 3482979 /usr/local/bin/rsync
> rsync   16327 root  mem    REG        3,1   35648   44022
> /lib/libnss_files-2.3.3.so
> rsync   16327 root  mem    REG        3,6  178476  411662
> /usr/share/locale/ISO-8859-1/LC_CTYPE
> rsync   16327 root  mem    REG        3,1 1165108   44042 /lib/tls/libc-2.3.3.so
> rsync   16327 root  mem    REG        3,1   60804   44034
> /lib/libresolv-2.3.3.so
> rsync   16327 root  mem    REG        3,1  529609   43989 /lib/ld-2.3.3.so
> rsync   16327 root    0u  unix 0xe16fb680         8778239 socket
> rsync   16327 root    2u   CHR      136,2               4 /dev/pts/2
> rsync   16327 root    4u  unix 0xe16fb380         8778248 socket

OK, this rsync process doesn't have any files open...
However, I expect that there should be a second rsync process as well?

> [root at www root]# strace -p 16327
> Process 16327 attached - interrupt to quit
> select(1, [0], [], NULL, {27, 137000})  = 0 (Timeout)
> select(1, [0], [], NULL, {60, 0})       = 0 (Timeout)
> select(1, [0], [], NULL, {60, 0})       = 0 (Timeout)
> select(1, [0], [], NULL, {60, 0})       = 0 (Timeout)
> select(1, [0], [], NULL, {60, 0})       = 0 (Timeout)
> select(1, [0], [], NULL, {60, 0})       = 0 (Timeout)
> select(1, [0], [], NULL, {60, 0})       = 0 (Timeout)
> select(1, [0], [], NULL, {60, 0} <unfinished ...>
> Process 16327 detached

This rsync process is waiting for data to come in on that socket, which
most probably should be supplied by the other rsync process. Hence,
could you repeat the exercise, but then for all rsync processes?


Paul Slootman