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Date: Thu, 19 Mar 2009 11:25:44 +0800
Message-ID: <b6a2187b0903182025y5552900cu6213a4f4eafeb6e6@mail.gmail.com>
Subject: Re: 2.6.29-rc8: Reported regressions from 2.6.28
From: Jeff Chua <jeff.chua.linux@gmail.com>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: Ingo Molnar <mingo@elte.hu>,
       Linus Torvalds <torvalds@linux-foundation.org>,
       "Rafael J. Wysocki" <rjw@sisk.pl>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Adrian Bunk <bunk@kernel.org>,
       Andrew Morton <akpm@linux-foundation.org>,
       Kernel Testers List <kernel-testers@vger.kernel.org>,
       Network Development <netdev@vger.kernel.org>,
       "John W. Linville" <linville@tuxdriver.com>
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On Thu, Mar 19, 2009 at 10:58 AM, Jeff Chua <jeff.chua.linux@gmail.com> wrote:
> I've tracked down to the sequence of iwconfig that causes it to fail.

> This loop only works 8 of 10 times with/without the patch.
> ? ? ? ?iwconfig wlan0 mode Managed essid xxx key restricted xxx
> ? ? ? ?iwconfig wlan0 ap auto channel auto ?# auto outside loop
> ? ? ? ?for((i = 0; i < 5; i++))
> ? ? ? ?do
> ? ? ? ? ? ? ? ?iwconfig wlan0 | grep -q "Not-Associated"
> ? ? ? ? ? ? ? ?[ $? -ne 0 ] && break
> ? ? ? ? ? ? ? ?echo ".\c"
> ? ? ? ? ? ? ? ?sleep 1
> ? ? ? ?done


I've modified it a little, and now it works 100% without patch, by
using "iwlist scan" instead of "sleep 1" ...
        iwconfig wlan0 mode Managed essid xxx key restricted xxx
        iwconfig wlan0 ap auto channel auto  # auto outside loop
        for((i = 0; i < 5; i++))
        do
                iwlist wlan0 scan >/dev/null  #use scan instead of sleep
                iwconfig $DEV | grep -q "Access Point: Not-Associated"
                [ $? -ne 0 ] && break
                echo ".\c"
        done


So, this will work for older kernel and well as 2.6.29-rc8.

Rafael, can we close the case? It's the iwconfig sequence that used to
work on 2.6.28-rc3 but now needs to be updated for 2.6.29-rc8.

Thanks,
Jeff.
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