Re: PROBLEM: 2.6.11-rc2 hangs on bridge shutdown (br0)

[YOSHIFUJI Hideaki / 吉藤英明]

In article <20050206.143107.39728239.yoshfuji@xxxxxxxxxxxxxx> (at Sun, 06 Feb 2005 14:31:07 +0900 (JST)), YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@xxxxxxxxxxxxxx> says:

> The source of problem is entry (*) which still on routing entry,
> not on gc list. And, the owner of entry is not routing table but
> unicast/anycast address structure(s).
> We need to "kill" active address on the other interfaces.

Which means in addrconf_notiry(), if the dev == &loopback_dev,
call addrconf_ifdown for every device like this:

Signed-off-by: Hideaki YOSHIFUJI <yoshfuji@xxxxxxxxxxxxxx>

===== net/ipv6/addrconf.c 1.129 vs edited =====
--- 1.129/net/ipv6/addrconf.c	2005-01-18 06:13:31 +09:00
+++ edited/net/ipv6/addrconf.c	2005-02-06 14:48:25 +09:00
@@ -1961,6 +1961,20 @@
 	case NETDEV_DOWN:
 	case NETDEV_UNREGISTER:
 		/*
+		 * If lo is doing down we need to kill
+		 * all addresses on the host because it owns
+		 * route on lo. --yoshfuji
+		 */
+		if (dev == &loopback_dev) {
+			struct net_device *dev1;
+			for (dev1 = dev_base; dev1; dev1 = dev->next) {
+				if (dev1 == &loopback_dev ||
+				    __in6_dev_get(dev1) == NULL)
+					continue;
+				addrconf_ifdown(dev1, event != NETDEV_DOWN);
+			}
+		}
+		/*
 		 *	Remove all addresses from this interface.
 		 */
 		addrconf_ifdown(dev, event != NETDEV_DOWN);


-- 
Hideaki YOSHIFUJI @ USAGI Project <yoshfuji@xxxxxxxxxxxxxx>
GPG FP: 9022 65EB 1ECF 3AD1 0BDF  80D8 4807 F894 E062 0EEA
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