On Tue, Jun 29, 2004 at 09:59:03AM +0900, YOSHIFUJI Hideaki / ?$B5HF#1QL@?(B
wrote:
> In article <20040628184758.C9214@xxxxxxxxxxxxxxxxxxxxxx> (at Mon, 28 Jun 2004
> 18:47:58 +0100), Russell King <rmk+lkml@xxxxxxxxxxxxxxxx> says:
> > On Tue, Jun 29, 2004 at 02:06:27AM +0900, YOSHIFUJI Hideaki /
> > ?$B5HF#1QL@?(B wrote:
> > > In article <20040628010200.A15067@xxxxxxxxxxxxxxxxxxxxxx> (at Mon, 28 Jun
> > > 2004 01:02:01 +0100), Russell King <rmk+lkml@xxxxxxxxxxxxxxxx> says:
> > >
> > > > Ok, I've just tried 2.6.7 out on my root-NFS'd firewall with IPv6 built
> > > > in, and it doesn't work because of the problem I described below.
> > > :
> > > > What's the solution?
> > >
> > > Bring lo up before bring others up.
> > > What does prevent you from doing this?
> > > (Do we need some bits to do this automatically?)
> >
> > When you use root-NFS, the kernel itself brings up the interfaces,
> > and IPv6 immediately comes in and tries to configure itself to them,
> > trying to create the routes.
> >
> > Unfortunately, the kernel doesn't bring up lo first because it
> > doesn't know to do that.
>
> Okay, would you try the following patch, please?
This does appear to fix the problem.
> D: Bring loopback device up first
>
> Signed-Off-By: Hideaki YOSHIFUJI <yoshfuji@xxxxxxxxxxxxxx>
>
> ===== net/ipv4/ipconfig.c 1.38 vs edited =====
> --- 1.38/net/ipv4/ipconfig.c 2004-06-23 09:06:18 +09:00
> +++ edited/net/ipv4/ipconfig.c 2004-06-29 09:53:36 +09:00
> @@ -183,7 +183,14 @@
>
> last = &ic_first_dev;
> rtnl_shlock();
> +
> + /* bring loopback device up first */
> + if (dev_change_flags(&loopback_dev, loopback_dev.flags | IFF_UP) < 0)
> + printk(KERN_ERR "IP-Config: Failed to open %s\n",
> loopback_dev.name);
> +
> for (dev = dev_base; dev; dev = dev->next) {
> + if (dev == &loopback_dev)
> + continue;
> if (user_dev_name[0] ? !strcmp(dev->name, user_dev_name) :
> (!(dev->flags & IFF_LOOPBACK) &&
> (dev->flags & (IFF_POINTOPOINT|IFF_BROADCAST)) &&
>
> --
> Hideaki YOSHIFUJI @ USAGI Project <yoshfuji@xxxxxxxxxxxxxx>
> GPG FP: 9022 65EB 1ECF 3AD1 0BDF 80D8 4807 F894 E062 0EEA
--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 PCMCIA - http://pcmcia.arm.linux.org.uk/
2.6 Serial core
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