Date: Wed, 28 Nov 2007 12:01:42 -0800 From: "Kevin Oberman" <oberman@es.net> To: Eric Schuele <e.schuele@computer.org> Cc: freebsd-current@freebsd.org Subject: Re: RELENG_7 and atheros .... Message-ID: <20071128200142.59CF14500E@ptavv.es.net> In-Reply-To: Your message of "Tue, 27 Nov 2007 09:24:29 CST." <474C36AD.4050700@computer.org>
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--==_Exmh_1196280102_76823P Content-Type: text/plain; charset=us-ascii Content-Disposition: inline > Date: Tue, 27 Nov 2007 09:24:29 -0600 > From: Eric Schuele <e.schuele@computer.org> > Sender: owner-freebsd-current@freebsd.org > > On 11/15/2007 22:08, Eric Schuele wrote: > > > Hello, > > > > I'm having some strangeness with respect to my atheros based card on > > releng_7. This may not sound like much... but together they concern me. > > I'm wondering if anyone has seen similar things. > > > > 1) I've seen two panics while trying to bring the interface up over > > the last few weeks. > > 2) I get disconnected every night from my wireless router at home. > > 99% of the time it happens after I've gone to bed. Once or twice... > > while I was sitting in front of it. It just disassociates? > > 3) When I am at the office, my card will *never* obtain an ip address > > from our DHCP server upon first booting. I must *always* down the > > interface, kill dhclient, bring the interface up and start dhclient. > > > > As a follow up for the list... > I rebuilt world and kernel on Nov 22nd. Since this time I have not > noticed the above mentioned issue #3. I did not dig through any commit > logs... but appears as though something changed to fix it. > > Fwiw... > Note that I did make a change to fix item #2 on the advice of another > FreeBSD'er. That change did not affect item #3. I did still see item > #3 occurring until I rebuilt on the 22nd. > > Thanks to all. I will also confirm the exact same experience. With more recent kernels I no longer see problem #3. I just associate on boot. I still need to disable background scanning to maintain stable connections. If there is only a single AP available, I lose association on occasion, usually about 10-15 times a day and re-establish the association in under 10 seconds. It's only slightly annoying. If there are multiple APs with the same SSID, things are much worse. The network seems to die every 5 minutes and take long intervals to re-associate, making the network pretty useless. In either case, 'ifconfig ath0 -bgscan' makes things work, again, at some cost to stability if I move around while online, but I don't tend to do this. Some day, when I have a bit of time, I will collect debug information on this so that Sam or someone else who understands the code might be able to track it down. -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634 Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751 --==_Exmh_1196280102_76823P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) Comment: Exmh version 2.5 06/03/2002 iD8DBQFHTckmkn3rs5h7N1ERAqvdAJ9kBgpCI2Q02vX4t+AfN9UC29RWVwCdG2/f XjeveX3QMwnlReEif4p9uyc= =4b+3 -----END PGP SIGNATURE----- --==_Exmh_1196280102_76823P--
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