> I'd be very interested if you could try and 'cat /proc/net/rt_cache'
> when your system is in this state. My suspicion is that it will hang,
> though it might not!
No, no hang:
$ cat /proc/net/rt_cache
Iface Destination Gateway Flags RefCnt Use Metric Source MTU Window IRTT HH ARP
eth0 011364C3 011364C3 05 0 6 0 031364C3 1500 0 0 20 1
eth0 8B55F482 011364C3 07 1 1 0 031364C3 1500 0 0 20 1
ppp22 301364C3 301364C3 05 0 1 0 031364C3 576 0 0 -1 0
eth0 432EAD86 011364C3 07 0 5 0 031364C3 1500 0 0 20 1
eth0 85254BD1 011364C3 07 0 3 0 031364C3 1500 0 0 20 1
eth0 A31464C3 011364C3 07 1 1 0 031364C3 1500 0 0 20 1
eth0 129C84C2 011364C3 07 1 1 0 031364C3 1500 0 0 20 1
eth0 94C6DBC1 011364C3 07 1 1 0 031364C3 1500 0 0 20 1
/Ryde