Date: Sat, 20 Oct 2007 17:30:32 -0700 From: "Kevin Oberman" <oberman@es.net> To: freebsd-mobile@freebsd.org Cc: sam@freebsd.org Subject: Problems running ath with bgscan enabled Message-ID: <20071021003032.D2DA04500E@ptavv.es.net>
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--==_Exmh_1192926632_61216P Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Ever since the update of the HAL and the new 802.11 code a few months ago (in current), I have been having problems, especially when I was in locations with multiple APs available. The problem was periodic loss of association. If I was at home where I can usually only see a couple of APs, the problem would occur an average of about 10 times a day with re-association in about 10 seconds, sometimes less. This is annoying, but not very disruptive. When away from home and in an urban location where there are several APs, both the frequency of the loss of connectivity and the time to re-associate increase. Last week at the NANOG meeting there were 4 conference b/g APs and 4 11a APS seen at all times along with the hotel's tmobile and a couple of random ones. Only the two conference SSIDs (nanog-arin and nanog-arin-a) were in my wpa_supplicant.conf file. My bgscan interval was the default 300 and almost every 5 minutes I would lose connectivity, often for over a minute. When I made the association between the bgscan interval and the drop-outs, I did an "ifconfig ath0 -bgscan" and things stabilized immediately. No further problems. ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413) ath0: <Atheros 5212> mem 0xb4000000-0xb400ffff irq 11 at device 2.0 on pci11 ath0: mac 5.9 phy 4.3 radio 3.6 This is really not acceptable for default behavior as it won't be clear to many how to fix it. Is it expected or is something wrong? Thanks! -- 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_1192926632_61216P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) Comment: Exmh version 2.5 06/03/2002 iD8DBQFHGp2okn3rs5h7N1ERAkGeAKCwqYHp1EgvPaGEdcpFiZmVFf3+0gCfcL7c XEzONYOrG6fbM6FGi/wLr4w= =wKtB -----END PGP SIGNATURE----- --==_Exmh_1192926632_61216P--
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