Description of problem:

Found following error while doing "service network restart" having bonded Ethernet :

"ifdown-eth: line 69: echo: write error: Invalid argument" when making a bonding device down

Version-Release number of selected component (if applicable):

initscripts-9.03.27-1.el6.x86_64

How reproducible:

Error appeared in RHEL 6.2 : (initscripts-9.03.27-1.el6.x86_64)

Testing :

cat /etc/sysconfig/network-scripts/ifcfg-bond0
DEVICE=bond0
BOOTPROTO=none
ONBOOT=yes
NETWORK=192.168.122.255
NETMASK=255.255.255.0
IPADDR=192.168.122.225
USERCTL=no
BONDING_OPTS="mode=1 arp_interval=1000 arp_ip_target=192.168.122.255 arp_validate=3"   

[root@~]# ifup bond0

$fconfig
bond0     Link encap:Ethernet  HWaddr 00:00:00:00:00:00  
          inet addr:192.168.122.225  Bcast:192.168.122.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

[root@ ~]cat /etc/redhat-release 
Red Hat Enterprise Linux Server release 6.2 (Santiago)

$rpm -qf /etc/sysconfig/network-scripts/ifdown-eth
initscripts-9.03.27-1.el6.x86_64

$service network restart
Shutting down interface bond0:  /etc/sysconfig/network-scripts/ifdown-eth: line 69: echo: write error: Invalid argument
                                                           [  OK  ]
Shutting down interface eth0:                              [  OK  ]
Shutting down loopback interface:                          [  OK  ]
Bringing up loopback interface:                            [  OK  ]
Bringing up interface bond0:                               [  OK  ]
Bringing up interface eth0:                                [  OK  ]

>> vi /etc/sysconfig/network-scripts/ifdown-eth: line 69 :

--------------
if is_bonding_device ${DEVICE} ; then
    for device in $(LANG=C egrep -l "^[[:space:]]*MASTER=\"?${DEVICE}\"?" /etc/sysconfig/network-scripts/ifcfg-*) ; do
        is_ignored_file "$device" && continue
        /sbin/ifdown ${device##*/}
    done
    for arg in $BONDING_OPTS ; do
        key=${arg%%=*};
        [[ "${key}" != "arp_ip_target" ]] || continue
        value=${arg##*=};
        if [ "${value:0:1}" != "" ]; then
            OLDIFS=$IFS;
            IFS=',';
            for arp_ip in $value; do
                if grep -q $arp_ip /sys/class/net/${DEVICE}/bonding/arp_ip_target; then
                    echo "-$arp_ip" > /sys/class/net/${DEVICE}/bonding/arp_ip_target    //69th Line
                fi
            done
            IFS=$OLDIFS;
        else
            value=${value#+};
            if grep -q $value /sys/class/net/${DEVICE}/bonding/arp_ip_target; then
                echo "-$value" > /sys/class/net/${DEVICE}/bonding/arp_ip_target
            fi
        fi
    done
fi
----------------

Steps to Reproduce:

1. Check above

  
Actual results:

Shutting down interface bond0:  /etc/sysconfig/network-scripts/ifdown-eth: line 69: echo: write error: Invalid argument

Expected results:

No error

Additional info:

Similar bug found in BZ#745681 on RHEL 5.7 and this will be fixed in rhel5.8. Issue doesn't appear with initscripts-9.03.23-1.el6.x86_64 on RHEL 6.1. Problem appears with initscripts-9.03.27-1.el6.x86_64 on RHEL 6.2