Comment 25 for bug 378156

Here is a bit more info:

I have an Asus eeepc 1000HE that uses the ath9k driver. With the latest Karmic updates. Upon power on the system seems to perform flawlessly. I can ping my local work station and get 1.xms time returns on the packets and 0% loss. Once I close the lid and put the beast to sleep and then return from suspend things change.

I can ping my local work station but packet return times start at about 100ms give or take a few (98 or so) and the it drops a few milliseconds until it gets down to about 1.x, it then resets at 100ms and begins to count down again. during this time there are may or may not be dropped packets. Sometimes 0% sometimes maybe 3% or 7%.

Here is a trace:

Just after power on
-------------------------------------------------------------------------------------------------
george@europa:~$ ping 199.60.63.2
PING 199.60.63.2 (199.60.63.2) 56(84) bytes of data.
64 bytes from 199.60.63.2: icmp_seq=1 ttl=64 time=6.34 ms
64 bytes from 199.60.63.2: icmp_seq=2 ttl=64 time=1.65 ms
64 bytes from 199.60.63.2: icmp_seq=3 ttl=64 time=1.72 ms
64 bytes from 199.60.63.2: icmp_seq=4 ttl=64 time=1.72 ms
64 bytes from 199.60.63.2: icmp_seq=5 ttl=64 time=1.73 ms
64 bytes from 199.60.63.2: icmp_seq=6 ttl=64 time=1.61 ms
64 bytes from 199.60.63.2: icmp_seq=7 ttl=64 time=1.66 ms
64 bytes from 199.60.63.2: icmp_seq=8 ttl=64 time=1.53 ms
64 bytes from 199.60.63.2: icmp_seq=9 ttl=64 time=709 ms
64 bytes from 199.60.63.2: icmp_seq=10 ttl=64 time=1.67 ms
64 bytes from 199.60.63.2: icmp_seq=11 ttl=64 time=1.65 ms
64 bytes from 199.60.63.2: icmp_seq=12 ttl=64 time=1.70 ms
64 bytes from 199.60.63.2: icmp_seq=13 ttl=64 time=1.75 ms
64 bytes from 199.60.63.2: icmp_seq=14 ttl=64 time=1.72 ms
64 bytes from 199.60.63.2: icmp_seq=15 ttl=64 time=1.68 ms
64 bytes from 199.60.63.2: icmp_seq=16 ttl=64 time=1.72 ms
64 bytes from 199.60.63.2: icmp_seq=17 ttl=64 time=2.03 ms
64 bytes from 199.60.63.2: icmp_seq=18 ttl=64 time=1.66 ms
64 bytes from 199.60.63.2: icmp_seq=19 ttl=64 time=1.62 ms
64 bytes from 199.60.63.2: icmp_seq=20 ttl=64 time=1.66 ms
^C
--- 199.60.63.2 ping statistics ---
20 packets transmitted, 20 received, 0% packet loss, time 19036ms
rtt min/avg/max/mdev = 1.532/37.315/709.398/154.189 ms
george@europa:~$

After returning from suspend
------------------------------------------------------------------------------------------------
george@europa:~$ ping 199.60.63.2
PING 199.60.63.2 (199.60.63.2) 56(84) bytes of data.
64 bytes from 199.60.63.2: icmp_seq=1 ttl=64 time=173 ms
64 bytes from 199.60.63.2: icmp_seq=2 ttl=64 time=71.7 ms
64 bytes from 199.60.63.2: icmp_seq=3 ttl=64 time=69.7 ms
64 bytes from 199.60.63.2: icmp_seq=4 ttl=64 time=68.0 ms
64 bytes from 199.60.63.2: icmp_seq=5 ttl=64 time=66.6 ms
64 bytes from 199.60.63.2: icmp_seq=6 ttl=64 time=64.6 ms
64 bytes from 199.60.63.2: icmp_seq=7 ttl=64 time=62.7 ms
64 bytes from 199.60.63.2: icmp_seq=8 ttl=64 time=60.6 ms
64 bytes from 199.60.63.2: icmp_seq=9 ttl=64 time=58.6 ms
64 bytes from 199.60.63.2: icmp_seq=10 ttl=64 time=56.7 ms
64 bytes from 199.60.63.2: icmp_seq=11 ttl=64 time=54.6 ms
64 bytes from 199.60.63.2: icmp_seq=12 ttl=64 time=52.7 ms
64 bytes from 199.60.63.2: icmp_seq=13 ttl=64 time=50.7 ms
64 bytes from 199.60.63.2: icmp_seq=14 ttl=64 time=48.6 ms
64 bytes from 199.60.63.2: icmp_seq=15 ttl=64 time=46.6 ms
64 bytes from 199.60.63.2: icmp_seq=16 ttl=64 time=44.6 ms
64 bytes from 199.60.63.2: icmp_seq=17 ttl=64 time=42.6 ms
64 bytes from 199.60.63.2: icmp_seq=18 ttl=64 time=40.6 ms
64 bytes from 199.60.63.2: icmp_seq=19 ttl=64 time=38.6 ms
64 bytes from 199.60.63.2: icmp_seq=20 ttl=64 time=36.6 ms
64 bytes from 199.60.63.2: icmp_seq=21 ttl=64 time=34.6 ms
64 bytes from 199.60.63.2: icmp_seq=22 ttl=64 time=32.6 ms
64 bytes from 199.60.63.2: icmp_seq=23 ttl=64 time=30.6 ms
64 bytes from 199.60.63.2: icmp_seq=24 ttl=64 time=32.6 ms
64 bytes from 199.60.63.2: icmp_seq=25 ttl=64 time=30.6 ms
64 bytes from 199.60.63.2: icmp_seq=26 ttl=64 time=28.6 ms
64 bytes from 199.60.63.2: icmp_seq=27 ttl=64 time=26.6 ms
64 bytes from 199.60.63.2: icmp_seq=28 ttl=64 time=24.6 ms
64 bytes from 199.60.63.2: icmp_seq=29 ttl=64 time=22.6 ms
64 bytes from 199.60.63.2: icmp_seq=30 ttl=64 time=20.6 ms
64 bytes from 199.60.63.2: icmp_seq=31 ttl=64 time=18.7 ms
64 bytes from 199.60.63.2: icmp_seq=32 ttl=64 time=16.6 ms
64 bytes from 199.60.63.2: icmp_seq=33 ttl=64 time=14.6 ms
64 bytes from 199.60.63.2: icmp_seq=34 ttl=64 time=12.6 ms
64 bytes from 199.60.63.2: icmp_seq=35 ttl=64 time=10.5 ms
64 bytes from 199.60.63.2: icmp_seq=36 ttl=64 time=808 ms
64 bytes from 199.60.63.2: icmp_seq=37 ttl=64 time=8.49 ms
64 bytes from 199.60.63.2: icmp_seq=38 ttl=64 time=6.61 ms
64 bytes from 199.60.63.2: icmp_seq=39 ttl=64 time=4.60 ms
64 bytes from 199.60.63.2: icmp_seq=40 ttl=64 time=2.68 ms
64 bytes from 199.60.63.2: icmp_seq=41 ttl=64 time=100 ms
64 bytes from 199.60.63.2: icmp_seq=42 ttl=64 time=98.7 ms
64 bytes from 199.60.63.2: icmp_seq=43 ttl=64 time=96.6 ms
64 bytes from 199.60.63.2: icmp_seq=44 ttl=64 time=94.7 ms
64 bytes from 199.60.63.2: icmp_seq=45 ttl=64 time=92.7 ms
64 bytes from 199.60.63.2: icmp_seq=46 ttl=64 time=90.7 ms
64 bytes from 199.60.63.2: icmp_seq=47 ttl=64 time=88.6 ms
^C
--- 199.60.63.2 ping statistics ---
47 packets transmitted, 47 received, 0% packet loss, time 46088ms
rtt min/avg/max/mdev = 2.687/65.140/808.590/114.451 ms
george@europa:~$

Hope this helps.