Mailinglist Archive: opensuse-bugs (6897 mails)

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https://bugzilla.novell.com/show_bug.cgi?id=250620

           Summary: ifdown may freeze with bonding driver - patch provided
           Product: openSUSE 10.2
           Version: Final
          Platform: i386
        OS/Version: SuSE Other
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Basesystem
        AssignedTo: bnc-team-screening@xxxxxxxxxxxxxxxxxxxxxx
        ReportedBy: eugen@xxxxxxxx
         QAContact: qa@xxxxxxx


ifdown as distributed may fail on bonded interfaces: We have seen "ip link set
dev $INTERFACE down &>/dev/null" in line 1201 never return after bonding a
r8169 primary with a compaq NC3134 dualport e100 secondary. This prevents a
clean shutdown.

AFAI have tested the problem appears only if
- there are other interfaces besides the bond
- the bond is the only interface carrying a default route
- there is at least one e100 and at least one other card in the bond 
This might be a kernel issue more than a distribution issue.

When calling "ifenslave -d" on all slaves before the "ifdown" this problem goes
away. 

the following patch calls "ifenslave -d" on all slaves before downing the
bonding instance, this solved the problem for our setup.

Hope the web form doesnt ruin linebreaks and whitespace - mail me up if this is
the case.

fwright:/sbin # diff -u ifup ifup.bonding-patched
--- ifup        2006-11-25 13:55:27.000000000 +0100
+++ ifup.bonding-patched        2007-03-02 15:16:35.000000000 +0100
@@ -1195,6 +1195,13 @@
                                ifup-route $CONFIG $INTERFACE ${OPTIONS:+-o
$OPTIONS}
                                ;;
                        ifdown)
+                               if [ "$BONDING_MASTER" = yes ] ; then
+                                       SLAVES=`cat
/proc/net/bonding/$INTERFACE | grep "Slave Interface" | awk '{print $3;}'`
+                                       for SLAVE in $SLAVES; do
+                                               message "    Unenslaving
interface $SLAVE"
+                                               ifenslave -d $INTERFACE $SLAVE
&>/dev/null
+                                       done
+                               fi
                                ifdown-dhcp $CONFIG $INTERFACE ${OPTIONS:+-o
$OPTIONS}
                                ifdown-route $CONFIG $INTERFACE ${OPTIONS:+-o
$OPTIONS}
                                ip addr flush dev $INTERFACE &>/dev/null


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