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SubjectRe: 2.6.22-rc4-mm2: Assigning IP address fails
On Thu, 7 Jun 2007 17:46:09 -0400
jfannin@gmail.com (Joseph Fannin) wrote:

> On Wed, Jun 06, 2007 at 10:03:13PM -0700, Andrew Morton wrote:
> >
> > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.22-rc4/2.6.22-rc4-mm2/
>
> I'm not able to bring an ethernet interface down and back up again
> with this if avahi-autoipd is installed on my Ubuntu boxes. I've seen
> it on three different computers with different NIC hardware.
>
> I've worked out an easy way to reproduce it without
> avahi-autoipd. Starting with eth0 up (address assigned by DHCP):
>
> # ifdown eth0
> < dhclient makes the normal noise about releasing the address >
> # ip addr add 169.254.255.67/16 brd 169.254.255.255 label eth0:avahi scope link dev eth0
> # ip addr del 169.154.255.67/16 brd 169.254.255.255 label eth0:avahi scope link dev eth0
> # ifup eth0
> SIOCSIFADDR: No buffer space available < -- first sign of trouble HERE
> < dhclient copyright boilerplate >
> Listening on LPF/eth0/<MAC addr>
> Sending on LPF/eth0/<MAC addr>
> Sending on Socket/fallback
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 5
> DHCPOFFER from < DHCP server >
> DHCPREQUEST on eth0 to 255.255.255.255 port 67
> DHCPACK from < DHCP server >
> SIOCSIFADDR: No buffer space available
> SIOCSIFNETMASK: Cannot assign requested address
> SIOCSIFBRDADDR: Cannot assign requested address
> SIOCADDRTL No such process
> bound to < IP address > -- renewal in XXXX seconds
> #
>
> At this point, the interface is up, but has no address assigned.
> Manually assigning one with ifconfig fails:
>
> # ifconfig eth0 netmask 255.255.255.0 172.16.0.1
> SIOCSIFNETMASK: Cannot assign requested address
> SIOCSIFADDR: No buffer space available
> #
>
> ... and a reboot is the only way I've been able to get the interface
> to work again.
>
> The last kernels I tried were 2.6.22-rc3 and *I think*
> 2.6.22-rc1-mm1, neither of which had this problem. I will test
> 2.6.22-rc4 and 2.6.22-rc3-mm1 later, but I'm out of time today.
>
> I've attached my .config .

Yep, thanks - Miles has reported the same thing.
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