No network after resume from suspend

[Rob M]

After resuming from being suspended, I no longer have a working Network. I need to run the following commands to bring it back up:
sudo ifdown eth0
sudi ifup eth0.

Note that the ifdown command reports the following two errors:
RTNETLINK answers: No such process
SIOCDELRT: No such process

Of course, I expected the network to work after resuming. This worked as expected with Ubuntu 7.10. I just updated yesterday to 8.04

I am using the following ubuntu version:
Description: Ubuntu hardy (development branch)
Release: 8.04

Note that I have KDE installed and am using that, not that that should matter any.

I have attached the output of dmesg below. I cleared its contents (sudo dmesg -c) just before suspending.

Output of ifconfig (after runninf ifdown and ifup) follows:
eth0 Link encap:Ethernet HWaddr 00:16:76:86:35:a7
          inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0
          inet6 addr: fe80::216:76ff:fe86:35a7/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:4143 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1284 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1872886 (1.7 MB) TX bytes:158876 (155.1 KB)
          Interrupt:18 Base address:0xde00

lo Link encap:Local Loopback
          inet addr:127.0.0.1 Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING MTU:16436 Metric:1
          RX packets:94 errors:0 dropped:0 overruns:0 frame:0
          TX packets:94 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:4700 (4.5 KB) TX bytes:4700 (4.5 KB)

contents of /etc/network/interfaces follows:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
#iface eth0 inet dhcp

iface eth0 inet static
address 192.168.1.100
netmask 255.255.255.0
gateway 192.168.1.1

Please let me know what other info I can provide that can help debug this. I am very computer literate, so I shoudl have no problems experimenting if you have any ideas of what to try.

[Daniel Hahler (blueyed)]

Thank you for your detailed bug report.
This sounds like a regression caused by bug 162654.

I'm marking it as duplicate.