| To: | "David S. Miller" <davem@xxxxxxxxxxxxx>, Arnaldo Carvalho de Melo <acme@xxxxxxxxxxxxxxxx>, YOSHIFUJI Hideaki <yoshfuji@xxxxxxxxxxxxxx>, netdev@xxxxxxxxxxx |
|---|---|
| Subject: | Re: Bug in ipv6_ifa_notify? |
| From: | Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> |
| Date: | Tue, 9 Nov 2004 22:48:39 +1100 |
| Cc: | Jeff Garzik <jgarzik@xxxxxxxxx>, Lennert Buytenhek <buytenh@xxxxxxxxxxxxxx> |
| In-reply-to: | <20041108203741.GA993@gondor.apana.org.au> |
| References: | <20041108061529.GA1774@gondor.apana.org.au> <20041108073441.GA2200@gondor.apana.org.au> <20041108121040.GA3618@gondor.apana.org.au> <20041108203741.GA993@gondor.apana.org.au> |
| Sender: | netdev-bounce@xxxxxxxxxxx |
| User-agent: | Mutt/1.5.6+20040722i |
On Tue, Nov 09, 2004 at 07:37:41AM +1100, herbert wrote: > > Well I've found a way for this to occur, but I must say that it is > fairly unlikely. When you bring the interface down, addrconf_ifdown > will try to to delete the addrconf timer and then notify DELADDR. > Since it doesn't wait for the timer to complete, it might still be > executing. Therefore it is possible to have a NEWADDR after a DELADDR > event. The attractive thing about this theory is that it is an SMP-only race. This could explain why only Jeff/Lennert are seeing it. Jeff/Lennert, could you please go back to 2.6.9, and then apply this patch? If this warning triggers, then that would confirm this theory. Thanks, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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