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From: Cheng Renquan <crquan@gmail.com>
Date: Wed, 21 Dec 2011 15:28:25 -0800
Message-ID: <CAH5vBdJ4-33z3FbOwVG1QRzfFOwFpz1wccbQNDXEC6-NhBa31A@mail.gmail.com> (sfid-20111222_002857_091582_D34ACDF2)
Subject: Re: linux 3.2-rcX iwlwifi driver's problem (wifi link unstable when
 moving between multiple APs)
To: "Guy, Wey-Yi" <wey-yi.w.guy@intel.com>
Cc: "sedat.dilek@gmail.com" <sedat.dilek@gmail.com>,
	Intel Linux Wireless <ilw@linux.intel.com>,
	"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
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Sender: linux-wireless-owner@vger.kernel.org
List-ID: <linux-wireless.vger.kernel.org>

I cherry-picked these 3 patches on top to v3.2.0-rc6, and now it's working,
Thank you all everyone's effort;

[archuser@archtop linux-git]$ git cherry-pick 123877b80
[b46 55de35a] iwlwifi: do not set the sequence control bit is not needed
 Author: Wey-Yi Guy <wey-yi.w.guy@intel.com>
 1 files changed, 4 insertions(+), 1 deletions(-)
[archuser@archtop linux-git]$ git cherry-pick 81670a49184
[b46 1b0b51d] iwlwifi: tx_sync only on PAN context
 Author: Johannes Berg <johannes.berg@intel.com>
 1 files changed, 6 insertions(+), 0 deletions(-)
[archuser@archtop linux-git]$ git cherry-pick 78feb35b81
[b46 73d79e2] iwlwifi: allow to switch to HT40 if not associated
 Author: Wey-Yi Guy <wey-yi.w.guy@intel.com>
 1 files changed, 2 insertions(+), 2 deletions(-)


When walking to some corner meeting rooms (but still has good
wifi connectivity, verified by another Android phone wifi ;),
the roaming may be from previous AP to none and none to next AP,
the process may need 1 to 2 minutes to be stable again, it's not
ideally swift but acceptable,


Dec 21 14:59:11 archtop NetworkManager[2333]: <info> (wlan0): roamed
from BSSID 24:B6:57:34:CC:5F (blizzard) to 6C:9C:ED:EC:BC:7F
(blizzard)
Dec 21 14:59:41 archtop NetworkManager[2333]: <info> (wlan0): roamed
from BSSID 6C:9C:ED:EC:BC:7F (blizzard) to (none) ((none))
Dec 21 14:59:53 archtop NetworkManager[2333]: <info> (wlan0): roamed
from BSSID (none) ((none)) to 2C:3F:38:F6:A8:AF (blizzard)


Thanks,