On Mon, Jun 1, 2009 at 12:00 PM, Bill Davidsen <davidsen(a)tmr.com> wrote:
Partha Bagchi wrote:
>
> On Sun, May 31, 2009 at 7:34 PM, Bill Davidsen <davidsen(a)tmr.com> wrote:
>>
>> Partha Bagchi wrote:
>>>
>>> I am testing RC1. I have to say that using ath9k is more problematic
>>> than before. Now, I can't get a signal in my backyard, where the
>>> connection icon shows a 40% signal, ping says destination host is
>>> unreachable when pinging the router:
>>> ping 192.168.1.1
>>> PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
>>>>
>>>> From 192.168.1.102 icmp_seq=1 Destination Host Unreachable
>>>> From 192.168.1.102 icmp_seq=3 Destination Host Unreachable
>>>> From 192.168.1.102 icmp_seq=4 Destination Host Unreachable
>>>
>>> ^C
>>> --- 192.168.1.1 ping statistics ---
>>> 6 packets transmitted, 0 received, +3 errors, 100% packet loss, time
>>> 5224ms
>>>
>> I believe that you will find this is a rounting problem, and IIRC there
>> is a
>> default route to the destination, else you would get "no route to
host,"
>> but
>> some network node refused to pass the packets, and retuned the ICMP
>> packets
>> saying so.
>>
>> If "netstat -rn" doesn't shed any light on this, use of tcpdump
may. I
>> don't
>> find any useful (to me) information in the rest of this, it is as I
>> expect.
>> I suppose that you could get this behavior if the route were in place but
>> the router didn't correctly handle the packets, or wasn't passing icmp.
>> You
>> comment on "nearer" suggests that.
>>
>> My experience has been that other than the fact that the checkbox for
>> starting a connection at boot is still a decoration rather than a
>> feature,
>> FC11 is working slightly better than FC10 on my laptops.
>>
>> Hope any of this helps.
>>
>>> uname -a
>>> Linux Bordeaux 2.6.29.4-167.fc11.i686.PAE #1 SMP Wed May 27 17:28:22
>>> EDT 2009 i686 i686 i386 GNU/Linux
>>>
>>> lspci:
>>> ...
>>> 06:00.0 Network controller: Atheros Communications Inc. AR928X
>>> Wireless Network Adapter (PCI-Express) (rev 01)
>>> ...
>>>
>>> [partha@Bordeaux ~]$ rpm -qa |grep -i network
>>> NetworkManager-gnome-0.7.1-4.git20090414.fc11.i586
>>> NetworkManager-vpnc-0.7.0.99-1.fc11.i586
>>> system-config-network-1.5.97-1.fc11.noarch
>>> NetworkManager-glib-0.7.1-4.git20090414.fc11.i586
>>> NetworkManager-openvpn-0.7.0.99-1.fc11.i586
>>> system-config-network-tui-1.5.97-1.fc11.noarch
>>> NetworkManager-0.7.1-4.git20090414.fc11.i586
>>> NetworkManager-openconnect-0.7.0.99-4.fc11.i586
>>>
>>> No additional information in /var/log/messages.
>>>
>>> Was working fine in Fedora 10 and also, works fine when I
am"nearer"
>>> to the router. Seems to me some sort of regression.
>>>
>>> Thanks,
>>> Partha
>>>
>>>
>>> On Thu, May 28, 2009 at 12:22 PM, James Laska <jlaska(a)redhat.com>
wrote:
>>>>
>>>> On Thu, 2009-05-28 at 17:10 +0100, Paul Black wrote:
>>>>>
>>>>> 2009/5/28 James Laska wrote:
>>>>>>>
>>>>>>> Where can we get RC1?
>>>>>>
>>>>>> I've buried the link under the "What to test"
section -
>>>>>>
>>>>>>
>>>>>>
https://fedoraproject.org/wiki/QA:Fedora_11_RC1_Install_Test_Results#What...
>>>>>
>>>>> Will these be available via rsync?
>>>>>
>>>>> I've tried the instructions here:
>>>>>
>>>>>
>>>>>
https://fedoraproject.org/wiki/User:Pfrields/Building_an_ISO_image_for_te...
>>>>> and they don't work; "rsync
rsync://alt.fedoraproject.org/alt" shows
>>>>> the stage directory is not present.
>>>>
>>>> Sorry, I don't believe these will be available for rsync. My
>>>> understanding is they are made available for high-bandwith testers to
>>>> assist with release candidate validation.
>>>>
>>>> Thanks,
>>>> James
>>>>
>>>> --
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>>>>
https://www.redhat.com/mailman/listinfo/fedora-test-list
>>>>
>>
>> --
>> Bill Davidsen <davidsen(a)tmr.com>
>> "We have more to fear from the bungling of the incompetent than from
>> the machinations of the wicked." - from Slashdot
>>
>> --
>> fedora-test-list mailing list
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https://www.redhat.com/mailman/listinfo/fedora-test-list
>>
>
> I am not sure I understand what you are saying. Perhaps that is my
> problem.
>
> I don't believe 'netstat -m' exists? What am I looking for here?
>
I have always combined the two letters, but I'm sure "netstat -r -n" will
do
the same thing, verify that the routing table contains no surprises.
My bad I read that as the letter "M" and not "RN". Sorry about
that.
netstat -r -n shows no surprises (from an su terminal).
> Also, do you expect the output of tcpdump when I am further away
from
> the router? I should mention that the router is in the basement and I
> am able to get a fine signal on the ground floor. When I step outside
> a few feet away that I cannot get a signal. I did not have this
> problem with Fedora 10, same hardware.
>
If I read your original post right, you said you had a 40% signal. You might
enter "iwconfig" from a command line and see what the values are for working
and non-working. If you run tcpdump on the wireless NIC you *may* see
packets being sent and ICMP error packets coming back. I'm just suggesting
that it will provide more information at a low cost in time.
iwconfig and NetworkManager track pretty well. My guess is that
NetworkManager simply reports what iwconfig says.
My problem was I don't know what to look for. tcpdump is not very
illuminating to me.
> Are you familiar with ath9k?
>
One of the machines I have used required that driver, but I'm not a regular
user. I have chased wireless problems on at least six or seven laptops, so I
can suggest things which have provided useful information in the past. The
network list or wireless list might also be worth reading or asking, but a
change between Fedora versions is likely to be release related.
I expect the laptop will show something on tcpdump, which may or may not be
useful. As noted, it's a low cost thing to try, I usually get all the cheap
information I can and see if something sticks out.
I will try.
As an aside, ath9k was being rigorously developed. I stopped following
their mailing list, so don't know the current status. However, as I
stated, F10 did not have any problems. F11RC1 (fully updated) does.
--
Bill Davidsen <davidsen(a)tmr.com>
"We have more to fear from the bungling of the incompetent than from
the machinations of the wicked." - from Slashdot
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Thanks!
Partha